Dissecting PipeMagic: Architecture of a Modular Backdoor
🔍 Microsoft Threat Intelligence details PipeMagic, a modular backdoor used by Storm-2460 that masquerades as an open-source ChatGPT Desktop Application. The malware is deployed via an in-memory MSBuild dropper and leverages named pipes and doubly linked lists to stage, self-update, and execute encrypted payload modules delivered from a TCP C2. Analysts observed exploitation of CVE-2025-29824 for privilege escalation followed by ransomware deployment, with victims across IT, finance, and real estate in multiple regions. The report includes selected IoCs, Defender detections, and mitigation guidance to help defenders detect and respond.
