Malware That Rewrites Itself Every Hour: AI-Powered Polymorphic Threats Break Signature-Based Defense

AI-powered polymorphic malware uses large language models to autonomously rewrite its code on execution or at machine speed, producing continuously unique variants that defeat signature- and hash-based detection; researchers observed experimental droppers (PROMPTFLUX) generating dozens of distinct variants in hours. The report warns that detection-and-response is structurally outpaced by machine-speed mutation and advocates a prevention-first approach—specifically Morphisec's Automated Moving Target Defense (AMTD)—to stop execution by relocating expected runtime targets and landing attacks on decoys.