很巧妙的进程防杀方法(互斥)

来源:互联网 发布:四川省畜牧兽医大数据 编辑:程序博客网 时间:2024/04/30 23:07
文章作者:I_LIKE_CPP

刚刚学内核对象,想写个可以防杀的进程,但其他方法太高级,
本菜鸟不感高攀,想了几天,想到一个很本的办法,不正确的
方还请高手指点一下.
程序运行两个事例,每个实例互相监视另外的实例是否存在,
如果不存在,就运行一个.
代码:
// test_process.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "tchar.h"
#include "iostream.h"
#include "windows.h"

LPCTSTR lpszMutex1 = _T("mutex1");
LPCTSTR lpszMutex2 = _T("mutex2");

DWORD WINAPI Thread1(LPARAM lParam);
DWORD WINAPI Thread2(LPARAM lParam);

int main(int argc, char* argv[])
{
      HANDLE hMutex1 = CreateMutex(NULL, FALSE, lpszMutex1);
      if (hMutex1 != NULL)
      if (GetLastError() == ERROR_ALREADY_EXISTS)
      {
        CloseHandle(hMutex1);
        cout << lpszMutex1 << " already exist." << endl;
        HANDLE hMutex2 = CreateMutex(NULL, FALSE, lpszMutex2);
        if (hMutex2 != NULL)
        if (GetLastError() == ERROR_ALREADY_EXISTS)
        {
            cout << lpszMutex2 << " already exist." << endl;
            return 1;
        }
      }
      DWORD dwThreadId;
      HANDLE hThread = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)Thread1,NULL,0,&dwThreadId);
      CloseHandle(hThread);
      while (1)
      Sleep(1);
      return 0;
}
DWORD WINAPI Thread1(LPARAM lParam)
{
      HANDLE hMutex;
      while (1)
      {
        hMutex = OpenMutex(MUTEX_ALL_ACCESS, TRUE, lpszMutex1);
        if (! hMutex)
        {
            STARTUPINFO si = { sizeof STARTUPINFO };
            PROCESS_INFORMATION pi;
            TCHAR szBuf[MAX_PATH];
            GetModuleFileName(GetModuleHandle(NULL), szBuf, MAX_PATH);
            CreateProcess(szBuf, NULL, NULL, NULL, TRUE, CREATE_NEW_CONSOLE, NULL, NULL, &si, &pi);
            CloseHandle(pi.hThread);
            CloseHandle(pi.hProcess);
        }
        CloseHandle(hMutex);
        hMutex = OpenMutex(MUTEX_ALL_ACCESS, TRUE, lpszMutex2);
        if (! hMutex)
        {
            cout << "mutex 2 created." << endl;
            STARTUPINFO si = { sizeof STARTUPINFO };
            PROCESS_INFORMATION pi;
            TCHAR szBuf[MAX_PATH];
            GetModuleFileName(GetModuleHandle(NULL), szBuf, MAX_PATH);
            CreateProcess(szBuf, NULL, NULL, NULL, TRUE, CREATE_NEW_CONSOLE, NULL, NULL, &si, &pi);
            CloseHandle(pi.hThread);
            CloseHandle(pi.hProcess);
        }
        CloseHandle(hMutex);
        cout << "Thread         ..." << endl;
        Sleep(1);
      }
      return 1;
}
程序是运行两个实例,一个程序运行后,分别检测互斥一和检测互斥二,发现没有互斥二,就运行一下自己,第二个运行的自己就占用了互斥二.
两个相同的程序循环检测互斥一和互斥二.一旦发现内存中少了某个互斥,就重复运行自身保证自己在程序中 这方法很巧 不过浪费很多资源 
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