https://www.bleepingcomputer.com/news/security/beware-onyx-ransomware-destroys-files-instead-of-encrypting-them/

A new Onyx ransomware operation is destroying files larger than 2MB instead of encrypting them, preventing those files from being decrypted even if a ransom is paid.

Last week, security researcher MalwareHunterTeam discovered that a new ransomware operation had launched called Onyx.