Just being safe.  It wouldn't be unheard of for an altcoin dev to slip a virus into a fresh update, thinking no one would be paying attention.

I did some googling though.  Baidu is not a very reliable antivirus program, and seems to find versions of this particular virus in everything from Mullvad VPN software to the Bitcoin core wallet and even Euro Truck Simulator 2.  So I'm gonna say odds are you are being honest.