Account Created And Deleted Within A Close Time Frame — Sigma Rule

Rule metadata and linked tags

Author: Mark Morowczynski '@markmorow', MikeDuddington, '@dudders1', Tim Shelton. Source status: test; severity: high. Source dates: 2022-08-11 / 2022-08-18.

{
  "product": "azure",
  "service": "auditlogs"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: c57bcebc9319bc129cac6035d57312bad0bc96a01bf9e3ae47775daee9f23a15

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: Account Created And Deleted Within A Close Time Frame
id: 6f583da0-3a90-4566-a4ed-83c09fe18bbf
status: test
description: Detects when an account was created and deleted in a short period of time.
references:
    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#short-lived-accounts
author: Mark Morowczynski '@markmorow', MikeDuddington, '@dudders1', Tim Shelton
date: 2022-08-11
modified: 2022-08-18
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.initial-access
    - attack.stealth
    - attack.t1078
logsource:
    product: azure
    service: auditlogs
detection:
    selection:
        properties.message:
            - Add user
            - Delete user
        Status: Success
    condition: selection
falsepositives:
    - Legit administrative action
level: high

Original YAML and metadata in JSON

False positives

• Legit administrative action

Source references

• https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#short-lived-accounts