Multi-Factor Authentication Disabled for an Azure Useredit

Identifies when multi-factor authentication (MFA) is disabled for an Azure user account. An adversary may disable MFA for a user account in order to weaken the authentication requirements for the account.

Rule type: query

Rule indices:

  • filebeat-*

Severity: medium

Risk score: 47

Runs every: 5 minutes

Searches indices from: now-25m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

Tags:

  • Elastic
  • Cloud
  • Azure
  • Continuous Monitoring
  • SecOps
  • Identity and Access

Version: 1

Added (Elastic Stack release): 7.10.0

Rule authors: Elastic

Rule license: Elastic License

Investigation guideedit

The Azure Filebeat module must be enabled to use this rule.

Rule queryedit

event.dataset:azure.auditlogs and
azure.auditlogs.operation_name:"Disable Strong Authentication" and
event.outcome:Success

Threat mappingedit

Framework: MITRE ATT&CKTM