Attackers are evolving a well-known Microsoft Teams and Quick Assist social-engineering playbook to install a new, stealthy backdoor dubbed A0Backdoor, according to new research from BlueVoyant. The campaign closely mirrors activity previously attributed to Blitz Brigantine (also tracked as Storm‑1811), a financially motivated group tied to Black Basta and Cactus ransomware operations. The intrusion begins with […]

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