Someone said my PC is hacked but I can't scan anything but track cookie

I play wow, and I got hacked 3 times in 20 days all under Norton Internet Security up.

 

Every times I do full scan it came out  track cookie only, as I have done few research it should be no need to be worry.

Do any probability that the scan is missing something. And how can I paste a scan result on board to show what I did.

 

Really, wow said 100% it''s on my PC and I can't find anything on it