Attackers Deploy ‘Skynet’ Agent to Hijack Exposed Models
🛡️ Symantec discovered an offensive agent dubbed ‘Skynet’ that hijacks unprotected AI model endpoints to run autonomous attacks. The agent uses layered jailbreak prompts to override model guardrails, enabling scanning, credential theft, reinfection, and cryptocurrency mining while shifting compute costs to victims. The technique, a form of LLMjacking, exploits misconfigured model servers, test systems, AI gateways, and MCP servers. Symantec captured the attack in a honeypot and advises inventorying model endpoints, enforcing authentication, scoping keys, blocking outbound traffic, and requiring human approval for sensitive actions.