Subtonic fake virus alert pop-up

Hi. I have a question. Directly on installing before I installed avast I got this fake virus alert popup from subtonic.
I blocked it and don’t get the popups anymore. Later I installed avast. I got the paid version. (trial at the moment)

I am not sure how this subtonic works, if it is some file or something in my computer, do avast help to remove and clear this kind of malware viruses or do it just detect and prevent it to infect the computer in the first place.

I have now run avast in offlinemode and still have the subtonic blocked.

So what I wonder is if avast help to remove this virus or if it is still alive and only blocked by my browser pop-up block?

Thanks.