从x64注入器注入x86 dll的x86目标

时间:2015-04-15 14:21:15

标签: c++ windows dll 64-bit

我正在做一些标题所说的麻烦......我制作了一个可以使用x86到x86和x64到x64的注入器,但从x64(带有x86 dll)注入x86并没有#39;使用该代码:

#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(即使是注入32位进程的64位注入器),但它实际上无法注入dll。

顺便说一句,在我的研究过程中,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

但是虽然答案解释了如何,但我没有设法实际做到这一点......所以我需要的只是一个代码片段以正确的方式发送给我?

1 个答案:

答案 0 :(得分:3)

更改此行:

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

这一行:

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

“loadLibrary_x86_address.exe”是32位应用,定义为:

#include <Windows.h>

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

作品!这是一种黑客行为,但它确实起到了作用。