Microsoft Teams Call Weaponized to Deploy and Execute Matanbuchus Ransomware
A sophisticated cyberattack campaign emerged in July 2025, weaponizing Microsoft Teams calls to deploy the latest iteration of Matanbuchus ransomware. The attack begins with adversaries impersonating IT helpdesk personnel through external Teams calls, leveraging social engineering tactics to convince employees to execute malicious scripts. During these fraudulent support sessions, attackers activate Quick Assist and instruct […]
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