Malware in phpunit folder on Cpanel

Someone tried to hacked my website and put those file..

/home/kulunghomestay/public_html/vendor/phpunit/phpunit/src/Util/PHP/cz.php
/home/kulunghomestay/public_html/vendor/phpunit/phpunit/src/Util/PHP/fz.php 
/home/kulunghomestay/public_html/vendor/phpunit/phpunit/src/Util/PHP/kill.php
/home/kulunghomestay/public_html/vendor/phpunit/phpunit/src/Util/PHP/m6s.php 
/home/kulunghomestay/public_html/vendor/phpunit/phpunit/src/Util/PHP/tz.php

Got any solution? Please help

via Chebli Mohamed