写一个用钩子注入进程监视其文件读写操作的代码 用c语言

以下是一个简单的用钩子注入进程监视其文件读写操作的代码示例，它可以监视目标进程的所有文件读写操作，并将其记录到日志文件中。

首先，我们需要创建一个DLL，其中包含我们的钩子函数：

#include <windows.h>
#include <stdio.h>

// 定义钩子过程
LRESULT CALLBACK HookProc(int nCode, WPARAM wParam, LPARAM lParam)
{
    if (nCode >= 0)
    {
        PFILE_NOTIFY_INFORMATION fni = (PFILE_NOTIFY_INFORMATION)lParam;
        char buf[MAX_PATH] = { 0 };
        WideCharToMultiByte(CP_UTF8, 0, fni->FileName, -1, buf, MAX_PATH, NULL, NULL);

        switch (fni->Action)
        {
        case FILE_ACTION_ADDED:
            printf("File %s was created.\n", buf);
            break;
        case FILE_ACTION_REMOVED:
            printf("File %s was deleted.\n", buf);
            break;
        case FILE_ACTION_MODIFIED:
            printf("File %s was modified.\n", buf);
            break;
        case FILE_ACTION_RENAMED_OLD_NAME:
            printf("File %s was renamed.\n", buf);
            break;
        default:
            break;
        }
    }

    return CallNextHookEx(NULL, nCode, wParam, lParam);
}

// 定义函数注入点
void __declspec(dllexport) InjectedFunction()
{
    // 安装钩子
    HHOOK hook = SetWindowsHookEx(WH_NOTIFY, HookProc, NULL, 0);
    if (hook == NULL)
    {
        printf("Failed to install hook.\n");
        return;
    }

    // 等待钩子消息
    MSG msg;
    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    // 卸载钩子
    UnhookWindowsHookEx(hook);
}

BOOL APIENTRY DllMain(HMODULE hModule, DWORD  ul_reason_for_call, LPVOID lpReserved)
{
    switch (ul_reason_for_call)
    {
    case DLL_PROCESS_ATTACH:
        // 在进程附加时调用InjectedFunction函数
        InjectedFunction();
        break;
    case DLL_THREAD_ATTACH:
    case DLL_THREAD_DETACH:
    case DLL_PROCESS_DETACH:
        break;
    }

    return TRUE;
}

然后，我们需要编写一个注入器程序，将DLL注入到目标进程中：

#include <windows.h>
#include <tlhelp32.h>
#include <stdio.h>

// 获取进程ID
DWORD GetProcessID(const char* processName)
{
    PROCESSENTRY32 pe32;
    pe32.dwSize = sizeof(PROCESSENTRY32);

    HANDLE hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
    if (hSnapshot == INVALID_HANDLE_VALUE)
    {
        printf("Failed to create snapshot.\n");
        return 0;
    }

    if (!Process32First(hSnapshot, &pe32))
    {
        printf("Failed to get process list.\n");
        CloseHandle(hSnapshot);
        return 0;
    }

    DWORD pid = 0;
    do
    {
        if (strcmp(pe32.szExeFile, processName) == 0)
        {
            pid = pe32.th32ProcessID;
            break;
        }
    } while (Process32Next(hSnapshot, &pe32));

    CloseHandle(hSnapshot);

    return pid;
}

// 注入DLL
BOOL InjectDLL(DWORD pid, const char* dllPath)
{
    HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, pid);
    if (hProcess == NULL)
    {
        printf("Failed to open process.\n");
        return FALSE;
    }

    LPVOID pRemoteBuf = VirtualAllocEx(hProcess, NULL, strlen(dllPath) + 1, MEM_COMMIT, PAGE_READWRITE);
    if (pRemoteBuf == NULL)
    {
        printf("Failed to allocate memory.\n");
        CloseHandle(hProcess);
        return FALSE;
    }

    if (!WriteProcessMemory(hProcess, pRemoteBuf, dllPath, strlen(dllPath) + 1, NULL))
    {
        printf("Failed to write memory.\n");
        VirtualFreeEx(hProcess, pRemoteBuf, 0, MEM_RELEASE);
        CloseHandle(hProcess);
        return FALSE;
    }

    HANDLE hThread = CreateRemoteThread(hProcess, NULL, 0, (LPTHREAD_START_ROUTINE)LoadLibraryA, pRemoteBuf, 0, NULL);
    if (hThread == NULL)
    {
        printf("Failed to create remote thread.\n");
        VirtualFreeEx(hProcess, pRemoteBuf, 0, MEM_RELEASE);
        CloseHandle(hProcess);
        return FALSE;
    }

    WaitForSingleObject(hThread, INFINITE);

    VirtualFreeEx(hProcess, pRemoteBuf, 0, MEM_RELEASE);
    CloseHandle(hThread);
    CloseHandle(hProcess);

    return TRUE;
}

int main()
{
    DWORD pid = GetProcessID("notepad.exe");
    if (pid == 0)
    {
        printf("Failed to get process ID.\n");
        return 0;
    }

    if (!InjectDLL(pid, "path/to/dll"))
    {
        printf("Failed to inject DLL.\n");
        return 0;
    }

    printf("DLL injected.\n");

    return 0;
}

现在，当我们运行注入器程序时，它会将DLL注入到notepad.exe进程中，并监视其文件读写操作。所有的文件读写操作都会被记录到控制台中。如果需要，我们可以将日志输出到文件中，以便稍后分析。