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AWS IAM Group Deletion

Detects when an IAM group is deleted using the DeleteGroup API call. Deletion of an IAM group may represent a malicious attempt to remove audit trails, disrupt operations, or hide adversary activity (for example…

Description

Detects when an IAM group is deleted using the DeleteGroup API call. Deletion of an IAM group may represent a malicious attempt to remove audit trails, disrupt operations, or hide adversary activity (for example after using the group briefly for privileged access). This can be an indicator of impact or cleanup in an attack lifecycle.

Detection logic

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Detection requirements

Platform
ESXiIaaSLinuxmacOSOffice SuiteSaaSWindows

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

Log source category
event_index

Known benign triggers

  • Legitimate group deletion during decommissioning of projects, clean-up of service accounts, or identity lifecycle changes may trigger this alert. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment. Resource group deletions by unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.

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