C++注入记事本

 1 #include "stdafx.h"
 2 
 3 BOOL CALLBACK EnumWindowsProc(HWND hwnd, LPARAM lParam);
 4 HWND GetMainWindow();
 5 
 6 extern "C" BOOL APIENTRY DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
 7 {
 8     HWND hWnd;
 9     HWND hParWnd,hButWnd;
10     int d, d1;
11     switch (fdwReason)
12     {
13     case DLL_PROCESS_ATTACH:
14         
15         hWnd = GetMainWindow();
16         if (hWnd)
17             hWnd = ::FindWindowEx(hWnd, 0, TEXT("EDIT"), NULL);
18         if (hWnd)
19         {
20             ::MessageBox(hWnd, TEXT("开始注入"), TEXT("提示"), MB_OK);
21             for (int i = 0; i < 100; i++)
22             {
23                 PostMessageW(hWnd, WM_CHAR, L'我', 1);
24                 PostMessageW(hWnd, WM_CHAR, L'喜', 1);
25                 PostMessageW(hWnd, WM_CHAR, L'欢', 1);
26                 PostMessageW(hWnd, WM_CHAR, L'你', 1);
27             }
28         }
29         else
30         {
31             ::MessageBox(hWnd, TEXT("记事本不存在"), TEXT("提示"), MB_OK);
32         }
33         break;
34     case DLL_PROCESS_DETACH:
35         // detach from process
36         break;
37 
38     case DLL_THREAD_ATTACH:
39         // attach to thread
40         break;
41 
42     case DLL_THREAD_DETACH:
43         // detach from thread
44         break;
45     }
46     return TRUE; // succesful
47 }
48 
49 BOOL CALLBACK EnumWindowsProc(HWND hwnd, LPARAM lParam)
50 {
51     DWORD dwCurProcessId = *((DWORD*)lParam);
52     DWORD dwProcessId = 0;
53 
54     GetWindowThreadProcessId(hwnd, &dwProcessId);
55     if (dwProcessId == dwCurProcessId && GetParent(hwnd) == NULL)
56     {
57         *((HWND *)lParam) = hwnd;
58         return FALSE;
59     }
60     return TRUE;
61 }
62 
63 
64 HWND GetMainWindow()
65 {
66     DWORD dwCurrentProcessId = GetCurrentProcessId();
67     if (!EnumWindows(EnumWindowsProc, (LPARAM)&dwCurrentProcessId))
68     {
69         return (HWND)dwCurrentProcessId;
70     }
71     return NULL;
72 }

DLL文件

  1 #include "stdafx.h"
  2 HANDLE hThread = NULL;
  3 //进程名称查找进程ID
  4 DWORD ProcessFind(LPCTSTR Exename) //进程名称
  5 {
  6     HANDLE hProcess = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, NULL);
  7     if (!hProcess)
  8     {
  9         return FALSE;
 10     }
 11     PROCESSENTRY32 info;
 12     info.dwSize = sizeof(PROCESSENTRY32);
 13     if (!Process32First(hProcess, &info))
 14     {
 15         return FALSE;
 16     }
 17     while (TRUE)
 18     {
 19         /*for (int i = 0; i <= 25; i++) {
 20             char c = info.szExeFile[i];
 21             cout << c;
 22         }*/
 23         cout << endl;
 24         if (_tcscmp(info.szExeFile, Exename) == 0)
 25         {
 26             return info.th32ProcessID;//返回进程的ID
 27         }
 28         if (!Process32Next(hProcess, &info))
 29         {
 30             return FALSE;
 31         }
 32     }
 33     return FALSE;
 34 
 35 }
 36 
 37 int dll_inject() {
 38     //Dll文件地址,改成你自己的地址
 39     const TCHAR *pLocDll = _T("G:\\vs c++\\injection\\x64\\Release\\injectionDll.dll");
 40 
 41     HANDLE hThread = NULL;
 42 
 43     //记事本进程名称
 44     DWORD ProcessID = ProcessFind(TEXT("notepad.exe"));
 45     if (!ProcessID) {
 46         cout << "查找不到当前程序" << endl;
 47     }
 48     else {
 49         //获取进程ID
 50         HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, TRUE, ProcessID);
 51 
 52         //获取dll大小
 53         SIZE_T PathSize = (_tcslen(_T("injectionDll.dll")) + 1) * sizeof(TCHAR);
 54 
 55         //申请内存
 56         LPVOID StartAddress = VirtualAllocEx(hProcess, NULL, PathSize, MEM_COMMIT, PAGE_READWRITE);
 57 
 58         //写入内存
 59         bool bSuccess = WriteProcessMemory(hProcess, StartAddress, _T("injectionDll.dll"), PathSize, 0);
 60         if (!bSuccess)
 61         {
 62             cout << "写入失败" << endl;
 63         }
 64         else {
 65             //在寄主申请内存
 66             LPVOID strRmt = VirtualAllocEx(hProcess, nullptr, MAX_PATH, MEM_COMMIT, PAGE_READWRITE);
 67             //获得注入DLL大小
 68             size_t lenLocDll = 2 * _tcslen(pLocDll);
 69             //判断寄主申请内存是否成功
 70             if (strRmt) {
 71                 //把DLL写入寄主内存
 72                 BOOL ret = WriteProcessMemory(hProcess, strRmt, pLocDll, lenLocDll, nullptr);
 73                 //获得LoadLibraryW的函数地址以使用LoadLibrary函数
 74                 LPTHREAD_START_ROUTINE loadlib = LPTHREAD_START_ROUTINE(GetProcAddress(GetModuleHandle(_T("Kernel32")), "LoadLibraryW"));
 75                 //注入
 76                 hThread = CreateRemoteThread(hProcess, nullptr, 0, loadlib, LPVOID(strRmt), 0, nullptr);
 77             }
 78             
 79             /*
 80             HANDLE hThread = CreateRemoteThread(hProcess, 0, 0, (LPTHREAD_START_ROUTINE)GetProcAddress(GetModuleHandle(_T("kernel32.dll")), "LoadLibrary"), StartAddress, 0, 0);*/
 81 
 82             if (hThread == NULL)
 83             {
 84                 cout << "在进程中注入失败:";
 85                 cout << GetLastError() << endl;
 86                 return -1;
 87             }
 88 
 89             WaitForSingleObject(hThread, INFINITE);
 90             //到这里已经完成dll的加载即注入了，通过dll函数执行我们要完成的任务
 91             //释放
 92             VirtualFreeEx(hProcess, StartAddress,0, MEM_RELEASE);
 93             CloseHandle(hThread);
 94             CloseHandle(hProcess);
 95         }
 96     }
 97 }
 98 int main()
 99 {
100     dll_inject();
101     system("pause");
102 }

主程序

 释放失败了，每次只能执行一次，第二次在执行的时候只能重开记事本，大佬来解决一下啊