I would download and test on my virtual machine out of pure boredom but i'm on mobile data transmitted to my pc. prolly a virus though sounds super fake
edit: Checked their account for 100% proof that this is a virus, a ton of comments just like this one on different games, I still wonder what it actually does though, the file seems awfully large, I thought viruses were supposed to be more compact, maybe it's some artifical padding to make it seem like your average game file size.