Blacklist domain

I’m not sure I understand your plugin question. However, if your site is hacked remain calm! It will take some work to get your site back to normal but everything will be okay, I promise! First you’ll want to follow this guide to recover from the hack. Once you are fully recovered you may want to implement some (if not all) of the recommended security measures.

Please let us know how that goes and we can help you from there. If that resolves your issue please tag the thread as resolved.