[Babuk](https://attack.mitre.org/software/S0638) is a Ransomware-as-a-service (RaaS) malware that has been used since at least 2021. The operators of [Babuk](https://attack.mitre.org/software/S0638) employ a "Big Game Hunting" approach to targeting major enterprises and operate a leak site to post stolen data as part of their extortion scheme.(Citation: Sogeti CERT ESEC Babuk March 2021)(Citation: McAfee Babuk February 2021)(Citation: CyberScoop Babuk February 2021)