Detection rules › Sigma

PIM Approvals And Deny Elevation

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 PIM elevation is approved or denied. Outside of normal operations should be investigated.

Known false positives

  • Actual admin using PIM.

MITRE ATT&CK coverage

Telemetry coverage

Rule body

title: PIM Approvals And Deny Elevation
id: 039a7469-0296-4450-84c0-f6966b16dc6d
status: test
description: Detects when a PIM elevation is approved or denied. Outside of normal operations should be investigated.
references:
    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-privileged-identity-management#azure-ad-roles-assignment
author: Mark Morowczynski '@markmorow', Yochana Henderson, '@Yochana-H'
date: 2022-08-09
tags:
    - attack.persistence
    - attack.initial-access
    - attack.privilege-escalation
    - attack.stealth
    - attack.t1078.004
logsource:
    product: azure
    service: auditlogs
detection:
    selection:
        properties.message: Request Approved/Denied
    condition: selection
falsepositives:
    - Actual admin using PIM.
level: high

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    properties.message: Request Approved/Denied

Indicators

These rows show field, operator, and value matches.