"New Malware Samples Indicate Return of REvil Ransomware"

Security researchers at Secureworks have claimed that new malware samples and a new Tor-based leak website suggest that the REvil ransomware operation has been resumed.  Secureworks, which tracks the group behind REvil as Gold Southfield, has analyzed malware samples apparently created in March and April, and determined that the developer likely has access to the original REvil source code.  The domain used by REvil’s old leak website now redirects visitors to a new domain, where more than 250 organizations that have been hit are listed, including many of REvil’s old targets and what appear to be new victims.  The website hosts data allegedly stolen from victims, as well as links to third-party sites that host stolen data.  The researchers noted that the new ransom note dropped on compromised systems includes links that point to the new .onion domains.  In July 2021, roughly two weeks after the cybercrime group targeted Kaseya and demanded a $70 million ransom, REvil’s website went offline.  In October, Tor servers associated with the REvil ransomware gang were seized in a multi-country hack-back operation.  One of the group’s members had posted a goodbye message on their blog, confirming that their server had been compromised.  Bleeping Computer claimed that they learned from a researcher that one of REvil’s original core developers is responsible for relaunching the ransomware operation, which would explain why they have access to the malware’s source code.

SecurityWeek reports: "New Malware Samples Indicate Return of REvil Ransomware"