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Cisco Quarry Detects AI Agent Attacks: Analysis & Hunting

Cisco's Quarry pairs ML and LLM judges with symbolic rules to catch Claude Code agent misuse. Its 9 detection rules include a free Splunk SPL rule.

Read the full threat intel for Cisco Quarry Detects AI Agent Attacks: Analysis & Hunting →

Chapters

  1. 0:00The hookAbout thirty organizations attacked in benign steps.
  2. 0:04The storyThirty organizations were targeted.
  3. 0:11Attack pathAttackers reportedly split objectives into benign steps.
  4. 0:27AttributionAttributed to GTG-1002.
  5. 0:32Indicators of compromiseNo malicious indicators were published.
  6. 0:38MITRE ATT&CK techniques9 ATT&CK techniques, from reconnaissance to collection.
  7. 0:43Remediation3 steps now: Log agent tool calls, shell commands and MCP interactions per.
  8. 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:00About thirty organizations attacked in benign steps.

0:05Thirty organizations were targeted.

0:07Then the Mexican government was breached.

0:11Attackers reportedly split objectives into benign steps.

0:15Then exploited vulnerabilities, harvested credentials, moved laterally.

0:19Finally, they exfiltrated target data.

0:22Quarry detects this attack sequence.

0:27Attributed to GTG-1002. Confidence: medium.

0:33No malicious indicators were published.

0:389 ATT&CK techniques, from reconnaissance to collection.

0:433 steps now: Log agent tool calls, shell commands and MCP interactions per.

0:519 detection rules, in SPL, KQL and Sigma.

0:56Threadlinqs. The unified security engineering platform.