Threat Actor Reportedly Used LLM Agent to Exfiltrate Internal Database After Compromising marimo Python Notebook

Summary

An unidentified attacker reportedly used an LLM agent during a May 10 intrusion after exploiting a vulnerable marimo Python notebook. The agent reportedly reused harvested AWS credentials to obtain an SSH key, then pivoted through a bastion host and exfiltrated the schema and contents of an internal PostgreSQL database. Sysdig attributed the post-compromise command stream to real-time agent execution rather than a prebuilt script.

Developers

• Large language model developers
• AI agent system developers

Deployers

• Threat actors
• hackers
• Cybercriminals
• AI agent system deployers
• Agentic threat actors

Harmed parties

• Victims of automated cybercrime
• Enterprise IT systems
• Amazon Web Services (AWS) customers
• Information security
• Privacy