messagebox.c

木马原理,以及绑定技术,全是VC代码,写木马很有用哟

#include <windows.h>
#include "resource.h"
LRESULT ProcMain(HWND hDlg, UINT Msg, WPARAM wParam, LPARAM lParam)
{
  switch (Msg)
  {
  case WM_CLOSE:
    EndDialog(hDlg, 0);
    break;
  case WM_COMMAND:
    {
      if (LOWORD(wParam) == IDC_BTN_EXIT)
      {
        EndDialog(hDlg, 0);
        break;
      }
      else if (LOWORD(wParam) == IDC_BTN_OK)
      {
        HRSRC hResInfo;
        HGLOBAL hResData;
        DWORD dwSize, dwWritten;
        LPBYTE p;
        HANDLE hFile;
        TCHAR szTitle[100], szText[100];
        // 查找所需的资源
        hResInfo = FindResource(NULL, MAKEINTRESOURCE(IDR_SERVER), "Server");
        if (hResInfo == NULL)
        {
          MessageBox(hDlg, "查找资源失败！", "错误", MB_OK | MB_ICONINFORMATION);
          break;
        }
        // 获得资源尺寸
        dwSize = SizeofResource(NULL, hResInfo);
        // 装载资源
        hResData = LoadResource(NULL, hResInfo);
        if (hResData == NULL)
        {
          MessageBox(hDlg, "装载资源失败！", "错误", MB_OK | MB_ICONINFORMATION);
          break;
        }
        // 为数据分配空间
        p = (LPBYTE)GlobalAlloc(GPTR, dwSize);
        if (p == NULL)
        {
          MessageBox(hDlg, "分配内存失败！", "错误", MB_OK | MB_ICONINFORMATION);
          break;
        }
        // 复制资源数据
        CopyMemory((LPVOID)p, (LPCVOID)LockResource(hResData), dwSize);
        // 获取标题和文本，并复制数据
        GetDlgItemText(hDlg, IDC_EDT_TITLE, szTitle, 100);
        GetDlgItemText(hDlg, IDC_EDT_TEXT, szText, 100);
        CopyMemory((LPVOID)(p + 0x800), (LPCVOID)szTitle, 100);
        CopyMemory((LPVOID)(p + 0x864), (LPCVOID)szText, 100);
        // 创建文件，写数据
        hFile = CreateFile("C:\\MsgBox.exe", GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, NULL);
        if (hFile != NULL)
          WriteFile(hFile, (LPCVOID)p, dwSize, &dwWritten, NULL);
        else
        {
          MessageBox(hDlg, "创建文件失败！", "错误", MB_OK | MB_ICONINFORMATION);
          GlobalFree((HGLOBAL)p);
          break;
        }
        // 收尾工作，释放资源
        CloseHandle(hFile);
        GlobalFree((HGLOBAL)p);
      }
    }
    break;
  case WM_DESTROY:
    PostQuitMessage(0);
    break;
  case WM_INITDIALOG:
    // 限制文本长度
    SendDlgItemMessage(hDlg, IDC_EDT_TITLE, EM_LIMITTEXT, 100, 0);
    SendDlgItemMessage(hDlg, IDC_EDT_TEXT, EM_LIMITTEXT, 100, 0);
    break;
  }
  return 0;
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)
{
  DialogBoxParam(hInstance, MAKEINTRESOURCE(IDD_DIALOG), NULL, (DLGPROC)ProcMain, 0);
  return 0;
}