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MediumSigmaHQ faloker

AWS IAM Backdoor Users Keys

Detects AWS API key creation for a user by another user. Backdoored users can be used to obtain persistence in the AWS environment. Also with this alert, you can detect a flow of AWS keys in your org.

Detection logic

Detection requirements

Platform: Containers ESXi IaaS Identity Provider Linux macOS Network Devices Office Suite SaaS Windows
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

AWS API keys legitimate exchange workflows
Adding user keys to their own accounts (the filter cannot cover all possible variants of user naming)

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
github.com/RhinoSecurityLabs/pacu/blob/866376cd711666c775bbfcde0524c817f2c5b181/pacu/modules/iam__backdoor_users_keys/main.py	Tool	Only this detection cites it
github.com/SigmaHQ/sigma/issues/6223	Tool	Only this detection cites it

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