Trojan.gen activity, slower system?

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jtpetch

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Jan 16, 2014
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Hi, I've been having a popup from Norton Antivirus (I know, I don't like it much either, but i got it free with comcast) saying "Trojan.gen activity blocked".
Now, I'm not a virus wiz, but I know what a trojan is, relatively. So, I had Norton do a FULL scan (took a few hours). The end result said it had detected 3 issues (All simply labelled "VIRUS"), and resolved two of them.
It said there was one that required my attention, it wanted me to restart. So I did. After restarting, I logged into my windows account again (I'm using 8.1, btw). About 15 seconds after it logged me in, i got the same popup. So I went into the norton security center, and looked at the security history. I found (what I believed to be) the details for the virus. This is what it said.
Now, I haven't been seeing any change (or any noticeable change) in my cpu, disk, and ram usages in task manager, nor do I see any processes that catch my eye as bad. What I have noticed though, is my system seems to be slower than it should be. I get MUCH lower fps in games (maxing out at ~250, to now maxing out at roughly 50-60, which isn't terrible, but in much more intensive games, it knocks it down to 25-30) then i did before this started happening, and even opening up webpages and files is slower.

So, what I'm wondering is, does anyone know what this is, how to fix it, and how to prevent this from happening again? (And BTW, I haven't downloaded ANY files that I didn't already know were not malicious.) Thanks all!
 


I just tried Malwarebytes. It found and removed 19 items. Restarted. Still. Getting. Popup. I'll try the one you suggested now.
 


Downloaded that, ran it, it didn't find anything.
I also tried a few things from bleepingcomputer.com, still nothing.
And yes, I had MWBytes remove what it found.
As of now, I also posted a thread about this on the Symantec forums, as I have seen similar problems there as well.
Just want to get maximum help, I suppose
 
Done. Haven't got the popup again, yet, but it does come at random times. I'll post back if it does, and in an hour, if it hasn't, I'll assume it's finally gone, and I'll go on with life :|
 
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