all you need to do is to look for a premium malwarebyte and install on your computer. I have been a victim of cryptovirus before. I downloaded a file and my system became infected with a virus called coinminer. what the virus do is to use the power of your system to mine cryptocurrency for the attacker. I noticed this quickly through the high CPU of my computer and also my battery run down very fast when not connected to charging source. I got raid of the threat through malwarebyte and ever since I have been very careful when downloading especially from sites that give freebies