Well the game also got flagged as a virus by Avast for me after I downloaded it and extracted the zip file. I don't know if I can really risk it to play the game...
I don't know what the problem is. Doesn't get flagged as virus for me and I can't change any game file now. So, there is no fix I think. I would love to say that try downloading the game but don't want to take any risk.