Hi. I realize I'm responding to a zombie. I found it searching for Win32:enistery. And registered here specifically to make this post.
I started using Avast a week ago and I am having the same experience as described by the OP. The difference here though, is I am not using any PC Tools software.
My ISP provides me with Norton. I stopped using the AVP part of their suite because I was getting too many false positives and the quarantineing of valid, vital files under their "WS.reputation.1" or "Suspicious.Insight" algorithms, which apparently do not identify malicious code but, rather, decide something is a threat based largely on being unfamiliar.
I don't know whether or not this Avast Win32:enistery is a similar animal or not ... but, I am suspecting it is.
My computer got me out of bed when I had almost reached REM this morning by announcing something like, "Suspicious activity detected". Rather annoying. At least Norton didn't get me out of bed for its false positives.
Any insight would be appreciated.
EDIT: I've added VyprVPN to the exclusion list. And shut off the audio announcements. Maybe I can sleep tonight.