Exe自杀代码

2009-12-9 09:30 840 0

摘要: //http://hi.baidu.com/zxhouse #include <windows.h> BOOL Delet...

关键词： nbsp stackctx DWORD PTR DeleteFileW WaitForSingleObj argv ExitProcess helper return

//http://hi.baidu.com/zxhouse #include <windows.h> BOOL DeleteMyself(WCHAR *pHelper) { int ret; WCHAR helper[MAX_PATH]; ZeroMemory(helper, sizeof(helper)); if (pHelper) wcsncpy(helper, pHelper, MAX_PATH-2); else wcscpy(helper, L"calc.exe"); STARTUPINFOW si = {sizeof(STARTUPINFOW),0}; PROCESS_INFORMATION pi; HANDLE hSYNC = OpenProcess(SYNCHRONIZE, TRUE, GetCurrentProcessId()); if (CreateProcessW(NULL, helper, 0, 0, TRUE, CREATE_SUSPENDED, 0, 0, &si, &pi)) { CONTEXT ctx = {CONTEXT_FULL,0}; ret = GetThreadContext(pi.hThread, &ctx); WCHAR MyselfPath[MAX_PATH]; int nPathLen = GetModuleFileNameW(NULL, MyselfPath, MAX_PATH); struct StackContext { DWORD_PTR DeleteFileW; DWORD_PTR WaitForSingleObject_argv1; DWORD_PTR WaitForSingleObject_argv2; DWORD_PTR ExitProcess; DWORD_PTR DeleteFileW_argv1; DWORD_PTR shit; DWORD_PTR ExitProcess_argv1; }stackctx; HMODULE hKernel32 = GetModuleHandleW(L"Kernel32.dll"); ctx.Eip = (DWORD_PTR)GetProcAddress(hKernel32, "WaitForSingleObject"); ctx.Esp = (DWORD_PTR)VirtualAllocEx(pi.hProcess, 0, 512*1024, MEM_COMMIT, PAGE_EXECUTE_READWRITE); ctx.Esp += 256*1024; stackctx.DeleteFileW = (DWORD_PTR)GetProcAddress(hKernel32, "DeleteFileW"); stackctx.WaitForSingleObject_argv1 = (DWORD_PTR)hSYNC; stackctx.WaitForSingleObject_argv2 = (DWORD_PTR)-1; stackctx.ExitProcess = (DWORD_PTR)GetProcAddress(hKernel32, "ExitProcess"); stackctx.DeleteFileW_argv1 = (DWORD_PTR)VirtualAllocEx(pi.hProcess, 0, (nPathLen+1)*sizeof(WCHAR), MEM_COMMIT, PAGE_EXECUTE_READWRITE); ret = WriteProcessMemory(pi.hProcess, (LPVOID)stackctx.DeleteFileW_argv1, MyselfPath, (nPathLen+1)*sizeof(WCHAR), NULL); if (!ret) return FALSE; stackctx.shit = 0; stackctx.ExitProcess_argv1 = 0; ret = WriteProcessMemory(pi.hProcess, (LPVOID)(ctx.Esp), &stackctx, sizeof(stackctx), NULL); if (!ret) return FALSE; ret = SetThreadContext(pi.hThread, &ctx); if (!ret) return FALSE; ResumeThread(pi.hThread); CloseHandle(pi.hThread); CloseHandle(pi.hProcess); return TRUE; }else { return FALSE; } } int main() { DeleteMyself(0); return 0; } //2000/xp/2003/vista 上已经测试通过

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