system
8
Ok, so essentially in this case avast is reporting that it cannot scan the file, since it appears corrupted.
I am vaguely familiar with CSS, and that is a map/game type? (“surf” rings a bell)
Since it is in the cache for steam, I am guessing a little that it may not be necessary.
That said, there’s not really anything that necessarily needs doing…
Just avast is reporting to you that the file is not scanned.
Scott