suspicious file warning from defender

Hi,
I have support access on for toppersautoservices.com. Defender spotted issues with the files below. Can you please go in and tell me what the best course of action would be?

Suspicious File Issue
jquery.js
/home/bnmpro5/public_html/toppersautoservices/wp-includes/js/jquery/jquery.js
This WordPress core file appears modified
phpQuery.php
/home/bnmpro5/public_html/toppersautoservices/wp-content/plugins/LayerSlider/helpers/phpQuery.php
Suspicious function found