VisualC++信息安全编程（4）实现文件自我删除

2012-01-07 14:37:43     我来说两句 

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文件自我删除是一个很有必要的功能，尤其在国家之间的网络战争。
 
 
#include "stdafx.h"  
#include <sys/stat.h>  //加入状态显示头文件.  
 
BOOL SelfDel1() 
{ 
    SHELLEXECUTEINFO sei; 
    TCHAR szModule [MAX_PATH],szComspec[MAX_PATH],szParams [MAX_PATH]; 
     
    // 获得文件名.  
    if((GetModuleFileName(0,szModule,MAX_PATH)!=0) && 
        (GetShortPathName(szModule,szModule,MAX_PATH)!=0) && 
        (GetEnvironmentVariable("COMSPEC",szComspec,MAX_PATH)!=0)) 
    { 
        // 设置命令参数.  
        lstrcpy(szParams,"/c del "); 
        lstrcat(szParams, szModule); 
        lstrcat(szParams, " > nul"); 
         
        // 设置结构成员.  
        sei.cbSize = sizeof(sei); 
        sei.hwnd = 0; 
        sei.lpVerb = "Open"; 
        sei.lpFile = szComspec; 
        sei.lpParameters = szParams; 
        sei.lpDirectory = 0; 
        sei.nShow = SW_HIDE; 
        sei.fMask = SEE_MASK_NOCLOSEPROCESS; 
         
        // 执行shell命令.  
        if(ShellExecuteEx(&sei)) 
        { 
            // 设置命令行进程的执行级别为空闲执行,使本程序有足够的时间从内存中退出.   
            SetPriorityClass(sei.hProcess,IDLE_PRIORITY_CLASS); 
            SetPriorityClass(GetCurrentProcess(),REALTIME_PRIORITY_CLASS); 
            SetThreadPriority(GetCurrentThread(),THREAD_PRIORITY_TIME_CRITICAL); 
             
           // 通知Windows资源浏览器,本程序文件已经被删除.  
            SHChangeNotify(SHCNE_DELETE,SHCNF_PATH,szModule,0); 
            return TRUE; 
        } 
    } 
    return FALSE; 
}  
 
BOOL SelfDel2() 
{ 
    CStdioFile  file; 
    CFileException fileEx; 
    TCHAR szDir[MAX_PATH]; 
    TCHAR szModule[MAX_PATH]; 
 
    GetModuleFileName(0, szModule, sizeof(szModule));   // 获得应用程序名.  
    GetCurrentDirectory(MAX_PATH, szDir);               // 获得文件的当前目录.  
 
    CString strFilePath=CString(szDir)+"tempDel.bat";   // 临时批处理文件名.  
 
    if(!file.Open(strFilePath,CFile::modeWrite |  
        CFile::typeText | CFile::modeCreate,&fileEx)) 
    { 
        #ifdef _DEBUG  
        afxDump << "The file could not be opened " << strFilePath<<"\n"; 
        afxDump << "Cause :"<<fileEx.m_cause << "\n"; 
        #endif  
        return FALSE; 
    } 
     
    CString strCmdLine1,strCmdLine2; 
    strCmdLine1.Format("del %s\n",szModule); 
    strCmdLine2.Format("del %%0\n"); 
 
    file.WriteString(strCmdLine1);                    // 写删除EXE的命令行.  
    file.WriteString(strCmdLine2);                    // 写删除BAT的命令行.  
    file.Close(); 
     
    WinExec(strFilePath,SW_HIDE);                     // 执行自行删除操作.  
 
    return TRUE; 
} 
 
void main() 
{ 
    SelfDel1(); 
} 
#include "stdafx.h"
#include <sys/stat.h>  //加入状态显示头文件.
 
BOOL SelfDel1()
{
       SHELLEXECUTEINFO sei;
       TCHAR szModule [MAX_PATH],szComspec[MAX_PATH],szParams [MAX_PATH];
      
       // 获得文件名.
       if((GetModuleFileName(0,szModule,MAX_PATH)!=0) &&
              (GetShortPathName(szModule,szModule,MAX_PATH)!=0) &&
              (GetEnvironmentVariable("COMSPEC",szComspec,MAX_PATH)!=0))
       {
              // 设置命令参数.
              lstrcpy(szParams,"/c del ");
              lstrcat(szParams, szModule);
              lstrcat(szParams, " > nul");
             
              // 设置结构成员.
              sei.cbSize = sizeof(sei);
              sei.hwnd = 0;
              sei.lpVerb = "Open";
              sei.lpFile = szComspec;
              sei.lpParameters = szParams;
              sei.lpDirectory = 0;
              sei.nShow = SW_HIDE;
              sei.fMask = SEE_MASK_NOCLOSEPROCESS;
             
              // 执行shell命令.
              if(ShellExecuteEx(&sei))
              {
            // 设置命令行进程的执行级别为空闲执行,使本程序有足够的时间从内存中退出.
                     SetPriorityClass(sei.hProcess,IDLE_PRIORITY_CLASS);
                     SetPriorityClass(GetCurrentProcess(),REALTIME_PRIORITY_CLASS);
                     SetThreadPriority(GetCurrentThread(),THREAD_PRIORITY_TIME_CRITICAL);
                    
                 // 通知Windows资源浏览器,本程序文件已经被删除.
                     SHChangeNotify(SHCNE_DELETE,SHCNF_PATH,szModule,0);
                     return TRUE;
              }
       }
       return FALSE;
}
 
BOOL SelfDel2()
{
       CStdioFile       file;
       CFileException fileEx;
       TCHAR szDir[MAX_PATH];
     TCHAR szModule[MAX_PATH];
 
       GetModuleFileName(0, szModule, sizeof(szModule));   // 获得应用程序名.
       GetCurrentDirectory(MAX_PATH, szDir);               // 获得文件的当前目录.
 
       CString strFilePath=CString(szDir)+"tempDel.bat";   // 临时批处理文件名.
 
       if(!file.Open(strFilePath,CFile::modeWrite |
              CFile::typeText | CFile::modeCreate,&fileEx))
       {
              #ifdef _DEBUG
              afxDump << "The file could not be opened " << strFilePath<<"\n";
              afxDump << "Cause :"<<fileEx.m_cause << "\n";
              #endif
              return FALSE;
       }
      
       CString strCmdLine1,strCmdLine2;
       strCmdLine1.Format("del %s\n",szModule);
       strCmdLine2.Format("del %%0\n");
 
       file.WriteString(strCmdLine1);                    // 写删除EXE的命令行.
       file.WriteString(strCmdLine2);                    // 写删除BAT的命令行.
       file.Close();
   
       WinExec(strFilePath,SW_HIDE);                     // 执行自行删除操作.
 
       return TRUE;
}
 
void main()
{
       SelfDel1();
}