Well. Run a scan! I'm not being paid to say this, I just wanted to inform people that this shit's a trojan. The website I run scans from is "VirusTotalHome." But even without running it, I wouldn't dare to run it on my pc. Since if they put malware in their game, then it's safe to assume they did it for all of them. But hey! Downloading malware doesn't really do much, since you first have to run it. I'd just delete it if I were you.