Sigma rule: SAML Token Issuer Anomaly

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-28d04f695a6b, updated 2023-09-03T00:00:00.000Z.

Rule

Title
SAML Token Issuer Anomaly
Status
test
Level
high
Author
Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
Date
2023-09-03
File
rules/cloud/azure/identity_protection/azure_identity_protection_token_issuer_anomaly.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Indicates the SAML token issuer for the associated SAML token is potentially compromised. The claims included in the token are unusual or match known attacker patterns

Log source

product
azure
service
riskdetection

Detection

selection:
    riskEventType: 'tokenIssuerAnomaly'
condition: selection

False positives (as the rule lists them)

  • We recommend investigating the sessions flagged by this detection in the context of other sign-ins from the user.

Tags

  • attack.t1606
  • attack.credential-access

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/cloud/azure/identity_protection/azure_identity_protection_token_issuer_anomaly.yml

Sources and licences

  • SigmaHQ

    "SAML Token Issuer Anomaly" by Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo' (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/cloud/azure/identity_protection/azure_identity_protection_token_issuer_anomaly.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: SAML Token Issuer Anomaly",
entity page, dataset version ref-28d04f695a6b, updated 2023-09-03T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/e3393cba-31f0-4207-831e-aef90ab17a8c (accessed 2026-11-03).
Underlying source: SigmaHQ rule e3393cba-31f0-4207-831e-aef90ab17a8c, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.