BianLian ransomware
https://www.bleepingcomputer.com/news/security/avast-releases-free-bianlian-ransomware-decryptor/
Security software company Avast has released a free decryptor for the BianLian ransomware strain to help victims of the malware recover locked files without paying the hackers.
The availability of a decryptor comes only about half a year after increased activity from BianLian ransomware over the summer of 2022, when the threat group breached multiple high-profile organizations.