Sigma rule: Change to Authentication Method

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-b2ae5e5f11f9, updated 2022-12-25T00:00:00.000Z.

Rule

Title
Change to Authentication Method
Status
test
Level
medium
Author
AlertIQ
Date
2021-10-10
Modified
2022-12-25
File
rules/cloud/azure/audit_logs/azure_change_to_authentication_method.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Change to authentication method could be an indicator of an attacker adding an auth method to the account so they can have continued access.

Log source

product
azure
service
auditlogs

Detection

selection:
    LoggedByService: 'Authentication Methods'
    Category: 'UserManagement'
    OperationName: 'User registered security info'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.privilege-escalation
  • attack.credential-access
  • attack.defense-impairment
  • attack.t1556
  • attack.persistence
  • attack.t1098

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/audit_logs/azure_change_to_authentication_method.yml

Sources and licences

  • SigmaHQ

    "Change to Authentication Method" by AlertIQ (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/cloud/azure/audit_logs/azure_change_to_authentication_method.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: Change to Authentication Method",
entity page, dataset version ref-b2ae5e5f11f9, updated 2022-12-25T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/4d78a000-ab52-4564-88a5-7ab5242b20c7 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 4d78a000-ab52-4564-88a5-7ab5242b20c7, 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.