Disabling Multi Factor Authentication — Sigma Rule

Rule metadata and linked tags

Author: Splunk Threat Research Team (original rule), Harjot Singh @cyb3rjy0t (sigma rule). Source status: test; severity: high. Source dates: 2023-09-18 / not supplied.

{
  "service": "audit",
  "product": "m365"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: fb1bd4f00989e5dc811af0e621cc918c686a0a29d0156eec013dfd9d35d91774

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Disabling Multi Factor Authentication
id: 60de9b57-dc4d-48b9-a6a0-b39e0469f876
status: test
description: Detects disabling of Multi Factor Authentication.
references:
    - https://research.splunk.com/cloud/c783dd98-c703-4252-9e8a-f19d9f5c949e/
author: Splunk Threat Research Team (original rule), Harjot Singh @cyb3rjy0t (sigma rule)
date: 2023-09-18
tags:
    - attack.persistence
    - attack.credential-access
    - attack.defense-impairment
    - attack.t1556.006
logsource:
    service: audit
    product: m365
detection:
    selection:
        Operation|contains: 'Disable Strong Authentication.'
    condition: selection
falsepositives:
    - Unlikely
level: high

Original YAML and metadata in JSON

False positives

• Unlikely

Source references

• https://research.splunk.com/cloud/c783dd98-c703-4252-9e8a-f19d9f5c949e/