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CI Fortify OT Isolation and Recovery: Analysis & Hunting

CI Fortify tells operators to cut OT off from business networks and recover systems. 9 detection rules, 8 ATT&CK techniques, plus a free Splunk SPL rule.

Read the full threat intel for CI Fortify OT Isolation and Recovery: Analysis & Hunting →

Chapters

  1. 0:00The hookCISA urges OT disconnection and recovery.
  2. 0:04The storyNation-state actors target critical OT.
  3. 0:12Attack pathThreat actors enter via trusted connections and remote access.
  4. 0:27AttributionNo threat actor is attributed.
  5. 0:32Indicators of compromise3 indicators to hunt: 3 documents.
  6. 0:38MITRE ATT&CK techniques8 ATT&CK techniques, from initial access to impact.
  7. 0:43Remediation4 steps now: Identify critical customers and set service delivery targets.
  8. 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:00CISA urges OT disconnection and recovery.

0:05Nation-state actors target critical OT.

0:08Disconnected systems survive weeks isolated.

0:12Threat actors enter via trusted connections and remote access.

0:17Stolen credentials enable access to operational systems.

0:21Isolated OT blocks entry for weeks of operation.

0:27No threat actor is attributed. Confidence: low.

0:323 indicators to hunt: 3 documents.

0:388 ATT&CK techniques, from initial access to impact.

0:434 steps now: Identify critical customers and set service delivery targets.

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

0:56Threadlinqs. The unified security engineering platform.