Malware Hides C2 Traffic in Microsoft Teams

🟠 High | Source: The Register — Security Attackers have developed custom malware that routes command-and-control traffic through Microsoft Teams, disguising malicious communications as legitimate corporate collaboration activity. By abusing trusted Microsoft services, the malware makes it significantly harder for security tools and analysts to distinguish attacker traffic from normal business use. This technique lowers the risk of detection and complicates incident response, particularly in organisations that heavily rely on Teams. ...

16 June 2025 · ZX Cloud Security

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