Okay, so I am checking my usual websites when all of a sudden my avast goes nuts. Every site I go to warns me of threats. After 6 to 8 times, I go to update and run a scan of avast. It will not let me update. So I shut down and run a scan. It comes up with 420 threats. So I move them to the vault. I then restart, update, run a scan, and no problems. Then I run malwares and nothing, How wierd is this? Should I be worried?

