I think I got it in time. After it happened I downloaded and installed those programs I mentioned (except AVG-I already had that) and I read that if you get this virus you can't even get to those websites, much less download, install and update the programs. They didn't find anything but tracking cookies and a couple of false positives I already knew about (which I went ahead and deleted just in case) so I think I got it. I rebooted and can go to any website without any trouble. Keeping my fingers crossed (and my eyes open for the next attack).