Suspicious Exposed Ollama API Service Connection

PremiumReviewedSigma · Low · v1
Product
linux
Category
network_connection
Author
HuntRule
Published
2026-08-12
Updated
2026-08-28

ATT&CK techniques

Initial Access
  1. Recon

  2. Resource Dev

  3. Execution

  4. Persistence

  5. Priv Esc

  6. Defense Evasion

  7. Cred Access

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects network connections to the default Ollama LLM service port, exposure that attackers abuse to hijack local AI inference in the evolved LLMjacking campaign. An internet-reachable Ollama endpoint allows unauthenticated model access and resource theft. Connections from untrusted sources to this port warrant review of the exposed service.

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Suspicious Exposed Ollama API Service Connection
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Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.