Microsoft Teams, the popular collaboration platform, has been targeted by threat actors to spread DarkGate malware through phishing scams and malware attacks. Cybersecurity experts from AT&T Cybersecurity have reported incidents where external users initiated unsolicited Teams chats with internal members, which were later confirmed to be phishing lures. The attackers used DarkGate malware, a well-known threat, which first emerged in 2017 as a password stealer and cryptocurrency miner. In the latest attack, the Managed Detection and Response (MDR) team from AT&T detected suspicious activities within the Teams environment, allowing them to uncover compromised accounts and assets for remediation. AT&T Cybersecurity recommends disabling External Access in Microsoft Teams and reinforcing user training to recognize and report phishing attempts.
Warning: Microsoft Teams unleashes DarkGate malware through external access
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