OTX Threat: Ten Minutes to Containment: How Agentic MXDR Scoped a Fake Claude Desktop Intrusion

A masqueraded scheduled task alert triggered an aggressive threat hunt that uncovered a complete FakeAgent intrusion campaign within ten minutes using an automated threat hunting agent. The campaign leveraged malvertising on Bing to distribute trojanized Claude Desktop installers hosted on legitimate Anthropic infrastructure. The attack chain featured DLL sideloading via Java Chromium Embedded Fra