原文链接：https://www.x86matthew.com/view_post?id=notepadexec
此代码演示如何使用窗口消息 ( SendMessage / PostMessage ) 以编程方式从 notepad.exe 中启动另一个可执行文件。我想不出这个工具有什么实际用途——这只是一个有趣的快速概念验证。
此代码演示如何使用窗口消息 ( SendMessage / PostMessage ) 以编程方式从 notepad.exe 中启动另一个可执行文件。我想不出这个工具有什么实际用途——这只是一个有趣的快速概念验证。
其工作原理如下：
1. 使用CreateProcess启动隐藏的notepad.exe进程。2. 使用EnumWindows
找到新的 notepad.exe 进程的主窗口。使用GetWindowThreadProcessId检查窗口是否由新的notepad.exe进程拥有。3. 使用SendMessage 以编程方式启动“打开文件”对话框。
4. 向“打开文件”对话框发送各种消息以导航到目标目录并选择 EXE 文件。将有更简洁的方法来访问未记录的DirectUIHWND窗口类，但我没有花任何时间研究这个。
5、发送WM_CONTEXTMENU消息到“打开文件”对话框，模拟EXE文件的右键单击。
6. 选择右键菜单中的“打开”按钮执行程序。
上述步骤的结果是从notepad.exe进程中创建的子进程。这是因为 Windows 中的“打开文件”对话框是在每个进程中使用 shell API DLL 实现的——这意味着它可以用作“缩减”
我还应该补充一点，这种方法并不是特别可靠。它依赖于一些硬编码的睡眠调用，整个事情很可能会在未来的 Windows 版本上中断。它还需要英文标签，尽管这些标签很容易更改。这仅在 Windows 10 上进行了测试。
完整代码如下：
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// NotepadExec.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。 // //#include <iostream> #include <stdio.h> #include <windows.h> DWORD dwGlobal_HideWindows = 0; DWORD dwGlobal_NotepadPID = 0; HWND hGlobal_NotepadWindow = NULL; HWND hGlobal_OpenFileWindow = NULL; HWND hGlobal_OpenFileEditControl = NULL; HWND hGlobal_OpenFileOpenButton = NULL; HWND hGlobal_OpenFileListControl = NULL; HWND hGlobal_PopupWindow = NULL; HANDLE hGlobal_NotepadProcess = NULL; BOOL CALLBACK FindNotepadWindow(HWND hWnd, LPARAM lParam) { DWORD dwPID = 0; // check if this window is within the new notepad process GetWindowThreadProcessId(hWnd, &dwPID); if (dwPID == dwGlobal_NotepadPID) { if (GetWindow(hWnd, GW_OWNER) == 0) { // found main window hGlobal_NotepadWindow = hWnd; return 0; } } return 1; } BOOL CALLBACK FindOpenFileWindow(HWND hWnd, LPARAM lParam) { DWORD dwPID = 0; char szClassName[512]; // check if this window is within the new notepad process GetWindowThreadProcessId(hWnd, &dwPID); if (dwPID == dwGlobal_NotepadPID) { memset(szClassName, 0, sizeof(szClassName)); GetClassName(hWnd, szClassName, sizeof(szClassName) - 1); if (strcmp(szClassName, "#32770") == 0) { // found "open file" window hGlobal_OpenFileWindow = hWnd; return 0; } } return 1; } BOOL CALLBACK FindPopupWindow(HWND hWnd, LPARAM lParam) { DWORD dwPID = 0; char szClassName[512]; // check if this window is within the new notepad process GetWindowThreadProcessId(hWnd, &dwPID); if (dwPID == dwGlobal_NotepadPID) { memset(szClassName, 0, sizeof(szClassName)); GetClassName(hWnd, szClassName, sizeof(szClassName) - 1); if (strcmp(szClassName, "#32768") == 0) { // found context menu hGlobal_PopupWindow = hWnd; return 0; } } return 1; } BOOL CALLBACK FindOpenFileBaseControls(HWND hWnd, LPARAM lParam) { DWORD dwPID = 0; char szClassName[512]; char szButtonText[512]; // check class name memset(szClassName, 0, sizeof(szClassName)); GetClassName(hWnd, szClassName, sizeof(szClassName) - 1); if (strcmp(szClassName, "Edit") == 0) { if (GetParent(GetParent(GetParent(hWnd))) == hGlobal_OpenFileWindow) { // found file name edit control hGlobal_OpenFileEditControl = hWnd; } } else if (strcmp(szClassName, "Button") == 0) { memset(szButtonText, 0, sizeof(szButtonText)); GetWindowText(hWnd, szButtonText, sizeof(szButtonText) - 1); if (strcmp(szButtonText, "&Open") == 0) { // found open button hGlobal_OpenFileOpenButton = hWnd; } } return 1; } BOOL CALLBACK FindOpenFileListControl(HWND hWnd, LPARAM lParam) { char szClassName[512]; // check class name memset(szClassName, 0, sizeof(szClassName)); GetClassName(hWnd, szClassName, sizeof(szClassName) - 1); if (strcmp(szClassName, "DirectUIHWND") == 0) { // get parent class name memset(szClassName, 0, sizeof(szClassName)); GetClassName(GetParent(hWnd), szClassName, sizeof(szClassName) - 1); if (strcmp(szClassName, "SHELLDLL_DefView") == 0) { // found file list control hGlobal_OpenFileListControl = hWnd; } } return 1; } DWORD WINAPI HideOpenFileWindowThread(LPVOID lpArg) { for (;;) { Sleep(10); // check if we have a valid window handle if (hGlobal_OpenFileWindow != NULL) { // hide window ShowWindow(hGlobal_OpenFileWindow, SW_HIDE); } } } DWORD CreateNotepadProcess() { PROCESS_INFORMATION ProcessInfo; STARTUPINFO StartupInfo; char szCmd[1024]; // initialise startup data memset((void*)&StartupInfo, 0, sizeof(StartupInfo)); StartupInfo.cb = sizeof(StartupInfo); // check if the window should be hidden if (dwGlobal_HideWindows != 0) { StartupInfo.dwFlags = STARTF_USESHOWWINDOW; StartupInfo.wShowWindow = SW_HIDE; StartupInfo.wShowWindow = SW_SHOW; } strcpy(szCmd, "notepad.exe"); // create notepad process if (CreateProcess(NULL, szCmd, NULL, NULL, 0, 0, NULL, NULL, &StartupInfo, &ProcessInfo) == 0) { return 1; } // store process ID and handle dwGlobal_NotepadPID = ProcessInfo.dwProcessId; hGlobal_NotepadProcess = ProcessInfo.hProcess; // close thread handle CloseHandle(ProcessInfo.hThread); // get main notepad window for (;;) { Sleep(10); // search for notepad window EnumWindows(FindNotepadWindow, NULL); if (hGlobal_NotepadWindow != NULL) { break; } } return 0; } DWORD LaunchTargetProcess(char* pDirectoryPath, char* pTargetExe) { HMENU hMenu = NULL; MENUITEMINFO MenuItemInfo; char szMenuItemString[512]; DWORD dwItemCount = 0; DWORD dwFoundOpenButton = 0; DWORD dwMenuKeyDownCount = 0; char szSendString[512]; DWORD i; // open "open file" dialog PostMessage(hGlobal_NotepadWindow, WM_COMMAND, 0x10002, 0); // find "open file" window for (;;) { Sleep(10); // search for window EnumWindows(FindOpenFileWindow, NULL); if (hGlobal_OpenFileWindow != NULL) { break; } } // find controls within "open file" window for (;;) { // search for controls EnumChildWindows(hGlobal_OpenFileWindow, FindOpenFileBaseControls, NULL); if (hGlobal_OpenFileEditControl != NULL && hGlobal_OpenFileOpenButton != NULL) { break; } Sleep(10); } // set directory path memset(szSendString, 0, sizeof(szSendString)); _snprintf(szSendString, sizeof(szSendString) - 1, "%s\\", pDirectoryPath); SendMessage(hGlobal_OpenFileEditControl, WM_SETTEXT, strlen(szSendString), (long)szSendString); SendMessage(hGlobal_OpenFileOpenButton, BM_CLICK, 0, 0); // wait for 1 second Sleep(1000); // set '*.exe' filter memset(szSendString, 0, sizeof(szSendString)); _snprintf(szSendString, sizeof(szSendString) - 1, "*.exe"); SendMessage(hGlobal_OpenFileEditControl, WM_SETTEXT, strlen(szSendString), (long)szSendString); SendMessage(hGlobal_OpenFileOpenButton, BM_CLICK, 0, 0); // wait for 1 second Sleep(1000); // find directory listing control within "open file" window for (;;) { Sleep(10); // find list control EnumChildWindows(hGlobal_OpenFileWindow, FindOpenFileListControl, NULL); if (hGlobal_OpenFileListControl != NULL) { break; } } // send tab character to move focus away from the edit control PostMessage(hGlobal_OpenFileWindow, WM_KEYDOWN, VK_TAB, 1); PostMessage(hGlobal_OpenFileWindow, WM_KEYUP, VK_TAB, 0xc0000001); // wait for 1 second Sleep(1000); // send target file name characters to the directory listing control to select the target file for ( i = 0; i < strlen(pTargetExe); i++) { // send current character SendMessage(hGlobal_OpenFileListControl, WM_CHAR, *(char*)(pTargetExe + i), 1); } // open the context menu for this file PostMessage(hGlobal_OpenFileListControl, WM_CONTEXTMENU, (WPARAM)hGlobal_OpenFileListControl, 0xFFFFFFFF); // find context menu for (;;) { Sleep(10); // search for context menu EnumWindows(FindPopupWindow, NULL); if (hGlobal_PopupWindow != NULL) { break; } } // send MN_GETHMENU message hMenu = (HMENU)SendMessage(hGlobal_PopupWindow, 0x01E1, 0, 0); if (hMenu == NULL) { return 1; } // find "Open" entry within the menu dwItemCount = GetMenuItemCount(hMenu); for (i = 0; i < dwItemCount; i++) { // get current menu item info memset((void*)&MenuItemInfo, 0, sizeof(MenuItemInfo)); MenuItemInfo.cbSize = sizeof(MenuItemInfo); MenuItemInfo.fMask = 0x100; GetMenuItemInfo(hMenu, i, 1, &MenuItemInfo); // check if this is a separator item if (MenuItemInfo.fType & MFT_SEPARATOR) { // ignore continue; } // increase the number of "key down" presses dwMenuKeyDownCount++; // check if this is the "Open" button memset(szMenuItemString, 0, sizeof(szMenuItemString)); GetMenuString(hMenu, i, szMenuItemString, sizeof(szMenuItemString) - 1, MF_BYPOSITION); if (strcmp(szMenuItemString, "&Open") == 0) { // found "Open" button dwFoundOpenButton = 1; break; } } // ensure the "Open" button was found in the context menu if (dwFoundOpenButton == 0) { return 1; } // send "down" key presses for (i = 0; i < dwMenuKeyDownCount; i++) { PostMessage(hGlobal_PopupWindow, WM_KEYDOWN, VK_DOWN, 0x2A0001); PostMessage(hGlobal_PopupWindow, WM_KEYUP, VK_DOWN, 0xD02A0001); } // send "enter" key to execute the target exe PostMessage(hGlobal_PopupWindow, WM_KEYDOWN, VK_RETURN, 0x2A0001); PostMessage(hGlobal_PopupWindow, WM_KEYUP, VK_RETURN, 0xD02A0001); return 0; } int main(int argc, char* argv[]) { DWORD dwThreadID = 0; HANDLE hHideOpenFileWindowThread = NULL; char szDirectoryPath[512]; char szTargetExe[512]; char* pLastSlash = NULL; printf("NotepadExec - www.x86matthew.com\n\n"); if (argc != 2) { printf("%s <full_exe_path>\n\n", argv[0]); return 1; } // split target exe path memset(szDirectoryPath, 0, sizeof(szDirectoryPath)); strncpy(szDirectoryPath, argv[1], sizeof(szDirectoryPath) - 1); // find last slash pLastSlash = strrchr(szDirectoryPath, '\\'); if (pLastSlash == NULL) { printf("Invalid exe path\n"); return 1; } // remove exe name from directory path *pLastSlash = '\0'; // store exe name memset(szTargetExe, 0, sizeof(szTargetExe)); pLastSlash++; strncpy(szTargetExe, pLastSlash, sizeof(szTargetExe) - 1); // hide windows dwGlobal_HideWindows = 1; printf("Creating notepad.exe process...\n"); // create notepad process if (CreateNotepadProcess() != 0) { // error printf("Failed to create notepad process\n"); return 1; } if (dwGlobal_HideWindows != 0) { // create background thread to ensure the "open file" window remains hidden. // this is because the "open file" window makes itself visible again when performing certain actions. hHideOpenFileWindowThread = CreateThread(NULL, 0, HideOpenFileWindowThread, NULL, 0, &dwThreadID); if (hHideOpenFileWindowThread == NULL) { // error printf("Failed to create thread\n"); TerminateProcess(hGlobal_NotepadProcess, 0); return 1; } } printf("Sending window messages to notepad...\n"); // launch target process if (LaunchTargetProcess(szDirectoryPath, szTargetExe) != 0) { // error printf("Failed to launch target process\n"); if (dwGlobal_HideWindows != 0) { TerminateThread(hHideOpenFileWindowThread, 0); } TerminateProcess(hGlobal_NotepadProcess, 0); return 1; } printf("Notepad launched %s successfully\n", szTargetExe); // wait for 2 seconds Sleep(2000); // terminate background thread if (dwGlobal_HideWindows != 0) { TerminateThread(hHideOpenFileWindowThread, 0); } // terminate notepad process TerminateProcess(hGlobal_NotepadProcess, 0); return 0; } |