WooYun.org

<?php
$a=str_replace(array('http://','share.weiyun.com/','url.cn/'),'',$_GET['url']);
if(strlen($a)<=10){
$ch=curl_init('http://url.cn/'.$a);
curl_setopt($ch,CURLOPT_HEADER,1);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
$b=curl_exec($ch);
curl_close($ch);
preg_match('/^Location: (.*?)\r\n/m',$b,$m);
$a=substr($m[1],24);
}
$ch=curl_init('http://web2.cgi.weiyun.com/outlink.fcg?cmd=12003&g_tk=&data=%7B%22req_header%22%3A%7B%22cmd%22%3A12003%2C%22appid%22%3A30111%2C%22version%22%3A2%2C%22major_version%22%3A2%7D%2C%22req_body%22%3A%7B%22ReqMsg_body%22%3A%7B%22weiyun.WeiyunShareDownloadMsgReq_body%22%3A%7B%22share_key%22%3A%22'.$a.'%22%2C%22pack_name%22%3A%22Unknow%22%7D%7D%7D%7D');
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
$b=curl_exec($ch);
curl_close($ch);
preg_match('/"download_url": "(.*?)"/m',$b,$m);
header('Location: '.$m[1]);