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bundler works, able to replace bootmgfw on disk..

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merge-requests/1/merge
xerox 4 years ago
parent 7b7cd7a9a7
commit 6e26985d98
7 changed files with 183 additions and 59 deletions
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4
Efi Bundler/shellcode.cpp
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@ -16,7 +16,7 @@ namespace shellcode
auto reloc = reinterpret_cast<PIMAGE_BASE_RELOCATION>(module_base + base_reloc_dir->VirtualAddress);
for (auto current_size = 0u; current_size < base_reloc_dir->Size; )
{
auto reloc_count = (reloc->SizeOfBlock - sizeof(IMAGE_BASE_RELOCATION)) / sizeof(UINT16);
std::uint32_t reloc_count = (reloc->SizeOfBlock - sizeof(IMAGE_BASE_RELOCATION)) / sizeof(UINT16);
auto reloc_data = reinterpret_cast<std::uint16_t*>((UINT8*)reloc + sizeof(IMAGE_BASE_RELOCATION));
auto reloc_base = reinterpret_cast<std::uint8_t*>(module_base) + reloc->VirtualAddress;
@ -28,6 +28,8 @@ namespace shellcode
switch (type)
{
case IMAGE_REL_BASED_ABSOLUTE:
break;
case IMAGE_REL_BASED_DIR64:
{
auto rva = reinterpret_cast<std::uintptr_t*>(reloc_base + offset);

82
Voyager (1703-1511)/BootMgfw.c
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@ -1,7 +1,7 @@
#include "BootMgfw.h"
SHITHOOK BootMgfwShitHook;
EFI_STATUS EFIAPI GetBootMgfwPath(EFI_DEVICE_PATH_PROTOCOL** BootMgfwPathProtocol)
EFI_STATUS EFIAPI RestoreBootMgfw(VOID)
{
UINTN HandleCount = NULL;
EFI_STATUS Result;
@ -33,11 +33,83 @@ EFI_STATUS EFIAPI GetBootMgfwPath(EFI_DEVICE_PATH_PROTOCOL** BootMgfwPathProtoco
return Result;
}
// if we found the correct file (\\efi\\microsoft\\boot\\bootmgfw.efi)
if (!EFI_ERROR(VolumeHandle->Open(VolumeHandle, &BootMgfwHandle, WINDOWS_BOOTMGR_PATH, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY)))
if (!EFI_ERROR(VolumeHandle->Open(VolumeHandle, &BootMgfwHandle, WINDOWS_BOOTMGFW_PATH, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY)))
{
VolumeHandle->Close(BootMgfwHandle);
*BootMgfwPathProtocol = FileDevicePath(Handles[Idx], WINDOWS_BOOTMGR_PATH);
EFI_FILE_PROTOCOL* BootMgfwFile = NULL;
EFI_DEVICE_PATH* BootMgfwPathProtocol = FileDevicePath(Handles[Idx], WINDOWS_BOOTMGFW_PATH);
if (EFI_ERROR((Result = EfiOpenFileByDevicePath(&BootMgfwPathProtocol, &BootMgfwFile, EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ, NULL))))
{
DBG_PRINT("error opening bootmgfw... reason -> %r\n", Result);
return Result;
}
if (EFI_ERROR((Result = BootMgfwFile->Delete(BootMgfwFile))))
{
DBG_PRINT("error deleting bootmgfw... reason -> %r\n", Result);
return Result;
}
BootMgfwPathProtocol = FileDevicePath(Handles[Idx], WINDOWS_BOOTMGFW_BACKUP_PATH);
if (EFI_ERROR((Result = EfiOpenFileByDevicePath(&BootMgfwPathProtocol, &BootMgfwFile, EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ, NULL))))
{
DBG_PRINT("failed to open backup file... reason -> %r\n", Result);
return Result;
}
EFI_FILE_INFO* FileInfoPtr = NULL;
UINTN FileInfoSize = NULL;
if (EFI_ERROR((Result = BootMgfwFile->GetInfo(BootMgfwFile, &gEfiFileInfoGuid, &FileInfoSize, NULL))))
{
if (Result == EFI_BUFFER_TOO_SMALL)
{
gBS->AllocatePool(EfiBootServicesData, FileInfoSize, &FileInfoPtr);
if (EFI_ERROR(Result = BootMgfwFile->GetInfo(BootMgfwFile, &gEfiFileInfoGuid, &FileInfoSize, FileInfoPtr)))
{
DBG_PRINT("get backup file information failed... reason -> %r\n", Result);
return Result;
}
}
else
{
DBG_PRINT("Failed to get file information... reason -> %r\n", Result);
return Result;
}
}
VOID* BootMgfwBuffer = NULL;
gBS->AllocatePool(EfiBootServicesData, FileInfoPtr->FileSize, &BootMgfwBuffer);
UINTN BootMgfwSize = FileInfoPtr->FileSize;
if (EFI_ERROR((Result = BootMgfwFile->Read(BootMgfwFile, &BootMgfwSize, BootMgfwBuffer))))
{
DBG_PRINT("Failed to read backup file into buffer... reason -> %r\n", Result);
return Result;
}
if (EFI_ERROR((Result = BootMgfwFile->Delete(BootMgfwFile))))
{
DBG_PRINT("unable to delete backup file... reason -> %r\n", Result);
return Result;
}
BootMgfwPathProtocol = FileDevicePath(Handles[Idx], WINDOWS_BOOTMGFW_PATH);
if (EFI_ERROR((Result = EfiOpenFileByDevicePath(&BootMgfwPathProtocol, &BootMgfwFile, EFI_FILE_MODE_CREATE | EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ, EFI_FILE_SYSTEM))))
{
DBG_PRINT("unable to create new bootmgfw on disk... reason -> %r\n", Result);
return Result;
}
BootMgfwSize = FileInfoPtr->FileSize;
if (EFI_ERROR((Result = BootMgfwFile->Write(BootMgfwFile, &BootMgfwSize, BootMgfwBuffer))))
{
DBG_PRINT("unable to write to newly created bootmgfw.efi... reason -> %r\n", Result);
return Result;
}
VolumeHandle->Close(VolumeHandle);
BootMgfwFile->Close(BootMgfwFile);
gBS->FreePool(FileInfoPtr);
gBS->FreePool(BootMgfwBuffer);
return EFI_SUCCESS;
}

6
Voyager (1703-1511)/BootMgfw.h
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@ -18,9 +18,11 @@
#define START_BOOT_APPLICATION_MASK "x????xxxxxx????xxx"
static_assert(sizeof(START_BOOT_APPLICATION_SIG) == sizeof(START_BOOT_APPLICATION_MASK), "signature and mask size's dont match...");
#define WINDOWS_BOOTMGR_PATH L"\\efi\\microsoft\\boot\\bootmgfw.efi"
#define WINDOWS_BOOTMGFW_PATH L"\\efi\\microsoft\\boot\\bootmgfw.efi"
#define WINDOWS_BOOTMGFW_BACKUP_PATH L"\\efi\\microsoft\\boot\\bootmgfw.efi.backup"
extern SHITHOOK BootMgfwShitHook;
typedef EFI_STATUS(EFIAPI* IMG_ARCH_START_BOOT_APPLICATION)(VOID*, VOID*, UINT32, UINT8, VOID*);
EFI_STATUS EFIAPI GetBootMgfwPath(EFI_DEVICE_PATH_PROTOCOL** BootMgfwPathProtocol);
EFI_STATUS EFIAPI RestoreBootMgfw(VOID);
EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE ImageHandle);
EFI_STATUS EFIAPI ArchStartBootApplicationHook(VOID* AppEntry, VOID* ImageBase, UINT32 ImageSize, UINT8 BootOption, VOID* ReturnArgs);

28
Voyager (1703-1511)/UefiMain.c
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@ -15,31 +15,17 @@ EFI_STATUS EFIAPI UefiMain
)
{
EFI_STATUS Result;
EFI_HANDLE BootMgfwHandle;
EFI_DEVICE_PATH* BootMgfwPath;
if (EFI_ERROR((Result = GetBootMgfwPath(&BootMgfwPath))))
{
Print(L"unable to get bootmgfw file path... reason -> %r\n", Result);
return EFI_NOT_FOUND;
}
if (EFI_ERROR((Result = gBS->LoadImage(TRUE, ImageHandle, BootMgfwPath, NULL, 0, &BootMgfwHandle))))
{
Print(L"failed to load bootmgfw.efi... reason -> %r\n", Result);
return EFI_ABORTED;
}
if (EFI_ERROR((Result = InstallBootMgfwHooks(BootMgfwHandle))))
EFI_DEVICE_PATH_PROTOCOL* BootMgfwPath;
if (EFI_ERROR((Result = RestoreBootMgfw())))
{
Print(L"Failed to install bootmgfw hooks... reason -> %r\n", Result);
return EFI_ABORTED;
DBG_PRINT("unable to get bootmgfw path... reason -> %r\n", Result);
return Result;
}
if (EFI_ERROR((Result = gBS->StartImage(BootMgfwHandle, NULL, NULL))))
if (EFI_ERROR((Result = InstallBootMgfwHooks(ImageHandle))))
{
Print(L"Failed to start bootmgfw.efi...\n");
return EFI_ABORTED;
DBG_PRINT("Failed to install bootmgfw hooks... reason -> %r\n", Result);
return Result;
}
return EFI_SUCCESS;
}

82
Voyager (2004-1709)/BootMgfw.c
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@ -1,7 +1,7 @@
#include "BootMgfw.h"
SHITHOOK BootMgfwShitHook;
EFI_STATUS EFIAPI GetBootMgfwPath(EFI_DEVICE_PATH_PROTOCOL** BootMgfwPathProtocol)
EFI_STATUS EFIAPI RestoreBootMgfw(VOID)
{
UINTN HandleCount = NULL;
EFI_STATUS Result;
@ -33,11 +33,83 @@ EFI_STATUS EFIAPI GetBootMgfwPath(EFI_DEVICE_PATH_PROTOCOL** BootMgfwPathProtoco
return Result;
}
// if we found the correct file (\\efi\\microsoft\\boot\\bootmgfw.efi)
if (!EFI_ERROR(VolumeHandle->Open(VolumeHandle, &BootMgfwHandle, WINDOWS_BOOTMGR_PATH, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY)))
if (!EFI_ERROR(VolumeHandle->Open(VolumeHandle, &BootMgfwHandle, WINDOWS_BOOTMGFW_PATH, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY)))
{
VolumeHandle->Close(BootMgfwHandle);
*BootMgfwPathProtocol = FileDevicePath(Handles[Idx], WINDOWS_BOOTMGR_PATH);
EFI_FILE_PROTOCOL* BootMgfwFile = NULL;
EFI_DEVICE_PATH* BootMgfwPathProtocol = FileDevicePath(Handles[Idx], WINDOWS_BOOTMGFW_PATH);
if (EFI_ERROR((Result = EfiOpenFileByDevicePath(&BootMgfwPathProtocol, &BootMgfwFile, EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ, NULL))))
{
DBG_PRINT("error opening bootmgfw... reason -> %r\n", Result);
return Result;
}
if (EFI_ERROR((Result = BootMgfwFile->Delete(BootMgfwFile))))
{
DBG_PRINT("error deleting bootmgfw... reason -> %r\n", Result);
return Result;
}
BootMgfwPathProtocol = FileDevicePath(Handles[Idx], WINDOWS_BOOTMGFW_BACKUP_PATH);
if (EFI_ERROR((Result = EfiOpenFileByDevicePath(&BootMgfwPathProtocol, &BootMgfwFile, EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ, NULL))))
{
DBG_PRINT("failed to open backup file... reason -> %r\n", Result);
return Result;
}
EFI_FILE_INFO* FileInfoPtr = NULL;
UINTN FileInfoSize = NULL;
if (EFI_ERROR((Result = BootMgfwFile->GetInfo(BootMgfwFile, &gEfiFileInfoGuid, &FileInfoSize, NULL))))
{
if (Result == EFI_BUFFER_TOO_SMALL)
{
gBS->AllocatePool(EfiBootServicesData, FileInfoSize, &FileInfoPtr);
if (EFI_ERROR(Result = BootMgfwFile->GetInfo(BootMgfwFile, &gEfiFileInfoGuid, &FileInfoSize, FileInfoPtr)))
{
DBG_PRINT("get backup file information failed... reason -> %r\n", Result);
return Result;
}
}
else
{
DBG_PRINT("Failed to get file information... reason -> %r\n", Result);
return Result;
}
}
VOID* BootMgfwBuffer = NULL;
gBS->AllocatePool(EfiBootServicesData, FileInfoPtr->FileSize, &BootMgfwBuffer);
UINTN BootMgfwSize = FileInfoPtr->FileSize;
if (EFI_ERROR((Result = BootMgfwFile->Read(BootMgfwFile, &BootMgfwSize, BootMgfwBuffer))))
{
DBG_PRINT("Failed to read backup file into buffer... reason -> %r\n", Result);
return Result;
}
if (EFI_ERROR((Result = BootMgfwFile->Delete(BootMgfwFile))))
{
DBG_PRINT("unable to delete backup file... reason -> %r\n", Result);
return Result;
}
BootMgfwPathProtocol = FileDevicePath(Handles[Idx], WINDOWS_BOOTMGFW_PATH);
if (EFI_ERROR((Result = EfiOpenFileByDevicePath(&BootMgfwPathProtocol, &BootMgfwFile, EFI_FILE_MODE_CREATE | EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ, EFI_FILE_SYSTEM))))
{
DBG_PRINT("unable to create new bootmgfw on disk... reason -> %r\n", Result);
return Result;
}
BootMgfwSize = FileInfoPtr->FileSize;
if (EFI_ERROR((Result = BootMgfwFile->Write(BootMgfwFile, &BootMgfwSize, BootMgfwBuffer))))
{
DBG_PRINT("unable to write to newly created bootmgfw.efi... reason -> %r\n", Result);
return Result;
}
VolumeHandle->Close(VolumeHandle);
BootMgfwFile->Close(BootMgfwFile);
gBS->FreePool(FileInfoPtr);
gBS->FreePool(BootMgfwBuffer);
return EFI_SUCCESS;
}

7
Voyager (2004-1709)/BootMgfw.h
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@ -11,6 +11,7 @@
#include <Protocol/LoadedImage.h>
#include <IndustryStandard/PeImage.h>
#include <Guid/GlobalVariable.h>
#include <Library/ShellLib.h>
#include "WinLoad.h"
#if WINVER > 1709
@ -25,9 +26,11 @@
#endif
static_assert(sizeof(START_BOOT_APPLICATION_SIG) == sizeof(START_BOOT_APPLICATION_MASK), "signature and mask size's dont match...");
#define WINDOWS_BOOTMGR_PATH L"\\efi\\microsoft\\boot\\bootmgfw.efi"
#define WINDOWS_BOOTMGFW_PATH L"\\efi\\microsoft\\boot\\bootmgfw.efi"
#define WINDOWS_BOOTMGFW_BACKUP_PATH L"\\efi\\microsoft\\boot\\bootmgfw.efi.backup"
extern SHITHOOK BootMgfwShitHook;
typedef EFI_STATUS(EFIAPI* IMG_ARCH_START_BOOT_APPLICATION)(VOID*, VOID*, UINT32, UINT8, VOID*);
EFI_STATUS EFIAPI GetBootMgfwPath(EFI_DEVICE_PATH_PROTOCOL** BootMgfwPathProtocol);
EFI_STATUS EFIAPI RestoreBootMgfw(VOID);
EFI_STATUS EFIAPI InstallBootMgfwHooks(EFI_HANDLE BootMgfwPath);
EFI_STATUS EFIAPI ArchStartBootApplicationHook(VOID* AppEntry, VOID* ImageBase, UINT32 ImageSize, UINT8 BootOption, VOID* ReturnArgs);

33
Voyager (2004-1709)/UefiMain.c
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@ -1,5 +1,4 @@
#include "BootMgfw.h"
#include <Library/ShellLib.h>
CHAR8* gEfiCallerBaseName = "Voyager";
const UINT32 _gUefiDriverRevision = 0x200;
@ -7,7 +6,9 @@ const UINT32 _gUefiDriverRevision = 0x200;
EFI_STATUS EFIAPI UefiUnload(
IN EFI_HANDLE ImageHandle
)
{ return EFI_SUCCESS; }
{
return EFI_SUCCESS;
}
EFI_STATUS EFIAPI UefiMain
(
@ -16,31 +17,17 @@ EFI_STATUS EFIAPI UefiMain
)
{
EFI_STATUS Result;
EFI_HANDLE BootMgfwHandle;
EFI_DEVICE_PATH* BootMgfwPath;
if (EFI_ERROR((Result = GetBootMgfwPath(&BootMgfwPath))))
{
Print(L"unable to get bootmgfw file path... reason -> %r\n", Result);
return EFI_NOT_FOUND;
}
if (EFI_ERROR((Result = gBS->LoadImage(TRUE, ImageHandle, BootMgfwPath, NULL, 0, &BootMgfwHandle))))
{
Print(L"failed to load bootmgfw.efi...\n");
return EFI_ABORTED;
}
if (EFI_ERROR(InstallBootMgfwHooks(BootMgfwHandle)))
EFI_DEVICE_PATH_PROTOCOL* BootMgfwPath;
if (EFI_ERROR((Result = RestoreBootMgfw())))
{
Print(L"Failed to install bootmgfw hooks...\n");
return EFI_ABORTED;
DBG_PRINT("unable to get bootmgfw path... reason -> %r\n", Result);
return Result;
}
if (EFI_ERROR(gBS->StartImage(BootMgfwHandle, NULL, NULL)))
if (EFI_ERROR((Result = InstallBootMgfwHooks(ImageHandle))))
{
Print(L"Failed to start bootmgfw.efi...\n");
return EFI_ABORTED;
DBG_PRINT("Failed to install bootmgfw hooks... reason -> %r\n", Result);
return Result;
}
return EFI_SUCCESS;
}
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