My Norton software is expired, but performs scans. Recently it's picked up a threat called infostealer.gampass. I have the free version of avast!, and it hasn't notified me of any threats. Is this serious, or is it a bogus alarm to scare me into renewing my subscription? If it is serious, how do I get rid of it? I'm practically a neanderthal so patience and simplified step by step instructions would be greatly appreciated. Thanks in advance!