Detection rules › Sigma
Stale Accounts In A Privileged Role
Identifies when an account hasn't signed in during the past n number of days.
Known false positives
- Investigate if potential generic account that cannot be removed.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Initial Access | |
| Persistence | |
| Privilege Escalation | |
| Stealth |
Rule body
title: Stale Accounts In A Privileged Role
id: e402c26a-267a-45bd-9615-bd9ceda6da85
status: test
description: Identifies when an account hasn't signed in during the past n number of days.
references:
- https://learn.microsoft.com/en-us/entra/id-governance/privileged-identity-management/pim-how-to-configure-security-alerts#potential-stale-accounts-in-a-privileged-role
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-14
tags:
- attack.initial-access
- attack.stealth
- attack.t1078
- attack.persistence
- attack.privilege-escalation
logsource:
product: azure
service: pim
detection:
selection:
riskEventType: 'staleSignInAlertIncident'
condition: selection
falsepositives:
- Investigate if potential generic account that cannot be removed.
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
riskEventType: 'staleSignInAlertIncident'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
riskEventType | eq |
| field:"azure_ad::risk_event_types" kind:eq value:"staleSignInAlertIncident" |