Sigma rule: Azure AD Only Single Factor Authentication Required

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-32f5e8936ebd, updated 2022-07-27T00:00:00.000Z.

Rule

Title
Azure AD Only Single Factor Authentication Required
Status
test
Level
low
Author
MikeDuddington, '@dudders1'
Date
2022-07-27
File
rules/cloud/azure/signin_logs/azure_ad_only_single_factor_auth_required.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detect when users are authenticating without MFA being required.

Log source

product
azure
service
signinlogs

Detection

selection:
    Status: 'Success'
    AuthenticationRequirement: 'singleFactorAuthentication'
condition: selection

False positives (as the rule lists them)

  • If this was approved by System Administrator.

Tags

  • attack.privilege-escalation
  • attack.persistence
  • attack.initial-access
  • attack.credential-access
  • attack.stealth
  • attack.defense-impairment
  • attack.t1078.004
  • attack.t1556.006

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/signin_logs/azure_ad_only_single_factor_auth_required.yml

Sources and licences

  • SigmaHQ

    "Azure AD Only Single Factor Authentication Required" by MikeDuddington, '@dudders1' (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/cloud/azure/signin_logs/azure_ad_only_single_factor_auth_required.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: Azure AD Only Single Factor Authentication Required",
entity page, dataset version ref-32f5e8936ebd, updated 2022-07-27T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/28eea407-28d7-4e42-b0be-575d5ba60b2c (accessed 2026-11-03).
Underlying source: SigmaHQ rule 28eea407-28d7-4e42-b0be-575d5ba60b2c, 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.