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AWS GuardDuty Threat Intelligence Set Deleted

Detects the deletion of an Amazon GuardDuty threat intelligence set. Threat intelligence sets are custom lists of known-malicious IP addresses or domains that GuardDuty uses to generate findings when monitored…

Description

Detects the deletion of an Amazon GuardDuty threat intelligence set. Threat intelligence sets are custom lists of known-malicious IP addresses or domains that GuardDuty uses to generate findings when monitored resources communicate with those indicators. Deleting a threat intel set degrades GuardDuty's detection capability for known adversary infrastructure, allowing communication with threat-actor-controlled IP ranges to go undetected.

Detection logic

Its licence does not clear it for publishing here

Sunturai publishes a detection's own text where the licence it arrived under has been reviewed and permits it, and Elastic License 2.0 has not. The query as its source wrote it, its canonical form and the hash that pins this revision are in the workspace record.

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Detection requirements

Platform
ContainersESXiIaaSIdentity ProviderLinuxmacOSNetwork DevicesOffice SuiteWindows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source category
event_index

Known benign triggers

  • Removal of an outdated or inaccurate threat intelligence set during a scheduled feed rotation may trigger this rule. Confirm the deletion corresponds to a planned feed update and that a replacement set was activated.

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