71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
#include <windows.h>
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#include <stdio.h>
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void ShowErrorMsg(LPCWSTR text) {
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wchar_t* buf[1024];
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_swprintf((wchar_t *const)buf, L"%s%i", text, GetLastError());
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MessageBoxW(nullptr, (LPCWSTR)buf, L"错误消息", MB_OK);
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}
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int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
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// 要启动的进程名
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const wchar_t* processName = L"jeweha_.exe";
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// 要注入的 DLL 路径
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const wchar_t* dllPath = L"jeweha_CHS_1.0.dll";
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// 启动进程
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STARTUPINFOW si;
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PROCESS_INFORMATION pi;
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ZeroMemory(&si, sizeof(si));
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ZeroMemory(&pi, sizeof(pi));
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si.cb = sizeof(si);
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// 创建新进程
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if (!CreateProcessW((LPCWSTR)processName, nullptr, NULL, NULL, FALSE, CREATE_SUSPENDED, NULL, NULL, &si, &pi)) {
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ShowErrorMsg(L"CreateProcessW failed: ");
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return 1;
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}
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size_t memSize = (wcslen(dllPath) + 1) * sizeof(wchar_t);
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// 在新进程中分配内存以存放 DLL 路径
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LPVOID pDllPath = VirtualAllocEx(pi.hProcess, NULL, memSize, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
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if (!pDllPath) {
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ShowErrorMsg(L"VirtualAllocEx failed: ");
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CloseHandle(pi.hProcess);
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CloseHandle(pi.hThread);
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return 1;
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}
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// 将 DLL 路径写入新进程的内存
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if (!WriteProcessMemory(pi.hProcess, pDllPath, (LPVOID)dllPath, memSize, NULL)) {
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ShowErrorMsg(L"WriteProcessMemory failed: ");
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VirtualFreeEx(pi.hProcess, pDllPath, 0, MEM_RELEASE);
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CloseHandle(pi.hProcess);
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CloseHandle(pi.hThread);
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return 1;
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}
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// 创建远程线程以加载 DLL
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HANDLE hThread = CreateRemoteThread(pi.hProcess, NULL, 0, (LPTHREAD_START_ROUTINE)GetProcAddress(GetModuleHandleA("kernel32.dll"), "LoadLibraryW"), pDllPath, 0, NULL);
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if (!hThread) {
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ShowErrorMsg(L"CreateRemoteThread failed: ");
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VirtualFreeEx(pi.hProcess, pDllPath, 0, MEM_RELEASE);
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CloseHandle(pi.hProcess);
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CloseHandle(pi.hThread);
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return 1;
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}
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// 等待线程完成
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WaitForSingleObject(hThread, INFINITE);
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// 清理
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VirtualFreeEx(pi.hProcess, pDllPath, 0, MEM_RELEASE);
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CloseHandle(hThread);
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ResumeThread(pi.hThread); // 恢复新进程的执行
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CloseHandle(pi.hProcess);
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CloseHandle(pi.hThread);
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return 0;
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}
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