The MM Locker ransomware encrypts files with the .locked extension.

There is a rumor going on around the Web, that this ransomware can enter a PC when a user downloads a "crack" for a game. The crack executables are being advertised around video sites like YouTube to gain popularity. They are not for just any game, but for big well-known AAA titles. One example is Far Cry Primal with the FCPrimal.exe file.

Far Cry Primal is one of the games that have Denuvo protection. In other words - they are not cracked - everything that is presented as a "crack" is fake (and probably delivers ransomware as this case here). Besides, pirating games is illegal in the first place.

You can read more about MM Locker in the blog article: MM Locker Ransomware Spreads via Far Cry Primal Cracks.

If you have been infected by the ransomware, you should read the article for more information and to learn how you can remove the virus.

Best Regards,
Execute