Think I've downloaded patgik.co.in with safari and don't know how to get rid of it

Went to a rebate website and a warning popped up. I closed safari browser but started getting notifications from safari about patgik.co.in - some kind of malware I guess. Didn't realize my firewall was off. I could see the file in system preferences in general. Once I put the firewall on now I can't see the same general menu in system preferences/general. But I need help to get rid of this thing? Running macOS Monterey 12.7.2. Safari 17.2.1