Temporary Access Pass Added To An Account — Sigma Rule

Rule metadata and linked tags

Author: Mark Morowczynski '@markmorow', Yochana Henderson, '@Yochana-H'. Source status: test; severity: high. Source dates: 2022-08-10 / not supplied.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 8dd3256ae10fd12977c7306723657fc32446b3ea0d50e07b9f6950acf5606fd3

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: Temporary Access Pass Added To An Account
id: fa84aaf5-8142-43cd-9ec2-78cfebf878ce
status: test
description: Detects when a temporary access pass (TAP) is added to an account. TAPs added to priv accounts should be investigated
references:
    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-privileged-accounts#changes-to-privileged-accounts
author: Mark Morowczynski '@markmorow', Yochana Henderson, '@Yochana-H'
date: 2022-08-10
tags:
    - attack.privilege-escalation
    - attack.initial-access
    - attack.persistence
    - attack.stealth
    - attack.t1078.004
logsource:
    product: azure
    service: auditlogs
detection:
    selection:
        properties.message: Admin registered security info
        Status: Admin registered temporary access pass method for user
    condition: selection
falsepositives:
    - Administrator adding a legitimate temporary access pass
level: high

Original YAML and metadata in JSON

False positives

• Administrator adding a legitimate temporary access pass

Source references

• https://learn.microsoft.com/en-us/entra/architecture/security-operations-privileged-accounts#changes-to-privileged-accounts