Detection rules › Sigma

Temporary Access Pass Added To An Account

Status
test
Severity
high
Log source
product azure, service auditlogs
Author
Mark Morowczynski '@markmorow', Yochana Henderson, '@Yochana-H'
Source
github.com/SigmaHQ/sigma

Detects when a temporary access pass (TAP) is added to an account. TAPs added to priv accounts should be investigated

MITRE ATT&CK coverage

Rule body yaml

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

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    properties.message: Admin registered security info
    Status: Admin registered temporary access pass method for user

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
Statuseq
  • Admin registered temporary access pass method for user
properties.messageeq
  • Admin registered security info