Hi @williambella
Hope you managed to resolve this since you posted last week. If not, maybe take a fresh look at this tutorial. It’s a step-by-step approach to ‘delousing’ that scrubs the site from top to bottom and then some.
Take special note of the followup questions at the bottom of the article. If you follow this guide thoroughly and find that the hacking persists, it might be worth reexamining your theme setup, plugins or hosting environment.
Good luck!