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Spike in AWS Error Messages

A machine learning job detected a significant spike in the rate of a particular error in the CloudTrail messages. Spikes in error messages may accompany attempts at privilege escalation, lateral movement, or discovery.

Detection logic

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Detection requirements

Platform
IaaSIdentity ProviderOffice SuiteSaaS

The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.

Known benign triggers

  • Spikes in error message activity can also be due to bugs in cloud automation scripts or workflows; changes to cloud automation scripts or workflows; adoption of new services; changes in the way services are used; or changes to IAM privileges.

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