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Kraken Ransomware: New Encryption Benchmarking Feature

Cyber Security News by CyberSum.net
3 sources
The Kraken ransomware, targeting Windows, Linux, and VMware ESXi systems, has introduced a unique feature that tests machine performance to optimize encryption speed. This ransomware, linked to the defunct HelloKitty group, engages in big-game hunting and double extortion attacks. It exploits SMB vulnerabilities for initial access and uses tools like Cloudflared and SSHFS for data exfiltration. Kraken's data leak site lists victims from various regions, and it operates a new cybercrime forum called 'The Last Haven Board'.

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Lazarus Group Espionage Campaign Targets Aerospace and Defense

Security researchers at ENKI have uncovered a sophisticated espionage campaign by the Lazarus Group targeting aerospace and defense organizations. The campaign, active since March 2025, uses phishing operations with malicious Word documents disguised as legitimate communications. The documents deploy a new variant of the Comebacker backdoor, which features advanced encryption and persistence mechanisms. The campaign's focus on specific organizations indicates a targeted espionage effort, with security teams advised to implement robust defenses against macro-based malware and spear phishing attempts.

By Cyber Security News by CyberSum.net