https://www.bleepingcomputer.com/news/security/thanos-ransomware-auto-spreads-to-windows-devices-evades-security/

The Thanos ransomware is the first to use a researcher-disclosed RIPlace anti-ransomware evasion technique as well as numerous other advanced features that make it a serious threat to keep an eye on.

Thanos first began private distribution at the end of October 2019, but it was not until January 2020 when victims seeking help for what was called then the Quimera Ransomware.