Oh no no no, don't worry about that. I just did some research online and it's only a false positive. My game is perfectly safe to extract and play!
https://www.reddit.com/r/antivirus/comments/1lekdxf/need_some_help_if_these_are_...
62 of the antiviruses said it was fine, and you instead trusted the 2 that you've probably never heard of, to run on an OS with endless security holes built in :P
I can understand your concern, especially when it's a fairly technical issue, and while I probably won't concern you, I figured I should at least address it!