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AWS GuardDuty Detector Deleted Or Updated

Detects successful deletion or disabling of an AWS GuardDuty detector, possibly by an attacker trying to avoid detection of its malicious activities. Upon deletion, GuardDuty stops monitoring the environment and all…

Description

Detects successful deletion or disabling of an AWS GuardDuty detector, possibly by an attacker trying to avoid detection of its malicious activities. Upon deletion, GuardDuty stops monitoring the environment and all existing findings are lost. Verify with the user identity that this activity is legitimate.

Detection logic

Detection requirements

Platform
ContainersESXiIaaSIdentity ProviderLinuxmacOSNetwork DevicesOffice SuiteSaaSWindows

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

Log source product
aws
Log source service
cloudtrail

Known benign triggers

  • Automated deployment tools (e.g. Terraform) managing GuardDuty state.
  • Legitimate detector deletion by an admin (e.g., during account decommissioning).
  • Temporary disablement for troubleshooting (verify via change management tickets).

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