Sorry if I posted this twice but I did not see my first post.
I accidentally downloaded this thing called videoplayer.dmg from savevideo.me I had avast scan and saw no problems but can avast run in the backround if this virus runs in the backround?
ALSO I NEVER OPENED The FILE I JUST ACCIDENTALLY DOWNLOADED IT! Should I worry? No strange activity so far.
with only one exception (that i know of) ALL AV have realtime protection, meaning they monitor/scan evrything that goes on in your computer when it is on