从x86注入器向x86目标注入x86 dll

Question

我在做标题上说的话有点困难.我制作了一个用于x86到x86和x64到x64的注入器，但是从x64注入x86 (使用x86 dll)并不适用于该代码：

#include <Windows.h>
#include <string>

bool InjectDll(DWORD processId, std::string dllPath)
{
    HANDLE hThread, hProcess;
    void*  pLibRemote = 0;  // the address (in the remote process) where
                            // szLibPath will be copied to;

    HMODULE hKernel32 = GetModuleHandle("Kernel32");

    char DllFullPathName[_MAX_PATH];
    GetFullPathName(dllPath.c_str(), _MAX_PATH, DllFullPathName, NULL);

    // Get process handle
    hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, processId);

    // copy file path in szLibPath
    char szLibPath[_MAX_PATH];
    strcpy_s(szLibPath, DllFullPathName);

    // 1. Allocate memory in the remote process for szLibPath
    pLibRemote = VirtualAllocEx(hProcess, NULL, sizeof(szLibPath),
                                MEM_COMMIT, PAGE_READWRITE);

    if (pLibRemote == NULL)
        return false;

    // 2. Write szLibPath to the allocated memory
    WriteProcessMemory(hProcess, pLibRemote, (void*)szLibPath,
                       sizeof(szLibPath), NULL);

    // 3. Force remote process to load dll
    LPTHREAD_START_ROUTINE thread;
    thread = (LPTHREAD_START_ROUTINE)GetProcAddress(hKernel32,"LoadLibraryA");

    hThread = CreateRemoteThread(hProcess, NULL, 0, thread,  pLibRemote,
                                 0, NULL);

    if (hThread == NULL)
        return false;

    return true;
}

该函数在每个场景中都返回true (甚至从注入32位进程的64位注入器返回)，但是它实际上无法注入dll。

顺便说一句，在我的研究中，我发现了这些问题：

x86 Code Injection into an x86 Process from a x64 Process

C++: Injecting 32 bit targets from 64 bit process

但虽然答案解释了怎么做，但我并没有真正做到.所以也许我只需要一个代码片段就能把我送上正确的道路？

Answer 1

更改这一行：

thread = (LPTHREAD_START_ROUTINE)GetProcAddress(hKernel32,"LoadLibraryA");

这一行：

thread = (LPTHREAD_START_ROUTINE)system("loadLibrary_x86_address.exe");

"loadLibrary_x86_address.exe“是一个32位应用程序，定义为：

#include <Windows.h>

int main()
{
    return (int)LoadLibraryA;
}

行得通！这是一种黑客行为，但它能起作用。