Read more: securityintelligence.com
The BlackCat ransomware, known for its Rust-based code and sophisticated attack techniques, went inactive after successfully extorting a $22 million ransom from Change Healthcare. The group cited law enforcement interference as the reason for its shutdown. However, a new ransomware strain, Cicada3301, has emerged with striking similarities to BlackCat, suggesting a possible rebranding or continuation of the same operation. Both strains use similar toolsets, share code similarities, and exhibit similar functionality, including methods for shadow copy deletion and tampering. The similarities between BlackCat and Cicada3301 raise concerns about the potential return of a highly effective and dangerous ransomware group.