I've had this computer since 2010 and have never seen this before. After my free subscription of Norton was up, I uninstalled everything Norton. The list of programs I have on my computer is: avast, malwarebytes, superantispyware, spywareblaster, and ccleaner.
I find it hard to believe this is a false pos, but if you think so, I wouldn't argue with you lol... Still, this is the first time it has come up and I have only had one false pos come up before in the 2 years of using avast which was the Windows winsxs.