AI Agent Builds Self-Expanding Stolen LLM Inference Supply Chain

Forensic Summary

A researcher operating an AI honeypot captured a semi-autonomous coding agent conducting a full-cycle offensive operation: locating poorly secured LLM resale gateways, harvesting API credentials via web vulnerabilities, validating stolen inference capacity, and aggregating it behind an attacker-controlled unified gateway. The operation is notable not for novel individual techniques but for its feedback loop architecture — stolen inference capacity is used to fund and expand further credential theft, creating a partially self-sustaining supply chain. The honeypot inadvertently received ~43 KB of the agent's control-plane data, including its AGENTS.md playbook, collected API keys, reconnaissance scripts, and the operator's unproxied egress IP.

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Read the full technical deep-dive on Grid the Grey: https://gridthegrey.com/posts/ai-agent-builds-self-expanding-stolen-llm-inference-supply-chain/