AWS Suspicious SAML Activity

SigmaHQ Detections@sigmaHQ

•updated Oct 23, 2025•1•0•26

This rule identifies suspicious activity related to Security Assertion Markup Language (SAML) in AWS. Specifically, it looks for two events: `AssumeRoleWithSAML` from the `sts.amazonaws.com` service and `UpdateSAMLProvider` from the `iam.amazonaws.com` service. An adversary could leverage these actions to gain unauthorized access, establish persistence, or escalate privileges within an AWS environment by manipulating SAML providers or assuming roles via SAML.