Researchers identified a new Osiris ransomware used in a November 2025 attack, abusing the POORTRY driver via BYOVD to disable security tools. Symantec and Carbon Black researchers uncovered a new ransomware strain named Osiris, used in a November 2025 attack against a major Southeast Asian food service franchise operator. The attackers deployed a malicious driver, […]
First seen on securityaffairs.com
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