Detection rules › Sigma
Failed Authentications From Countries You Do Not Operate Out Of
Detect failed authentications from countries you do not operate out of.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Initial Access | T1078.004 Valid Accounts: Cloud Accounts |
| Persistence | T1078.004 Valid Accounts: Cloud Accounts |
| Privilege Escalation | T1078.004 Valid Accounts: Cloud Accounts |
| Stealth | T1078.004 Valid Accounts: Cloud Accounts |
| Credential Access | T1110 Brute Force |
Rule body yaml
title: Failed Authentications From Countries You Do Not Operate Out Of
id: 28870ae4-6a13-4616-bd1a-235a7fad7458
status: test
description: Detect failed authentications from countries you do not operate out of.
references:
- https://learn.microsoft.com/en-gb/entra/architecture/security-operations-user-accounts
author: MikeDuddington, '@dudders1'
date: 2022-07-28
tags:
- attack.privilege-escalation
- attack.persistence
- attack.initial-access
- attack.credential-access
- attack.stealth
- attack.t1078.004
- attack.t1110
logsource:
product: azure
service: signinlogs
detection:
selection:
Status: 'Success'
selection1:
Location|contains: '<Countries you DO operate out of e,g GB, use OR for multiple>'
condition: not selection and not selection1
falsepositives:
- If this was approved by System Administrator.
level: low
Stages and Predicates
Stage 0: condition
not selection and not selection1Stage 1: not selection
selection:
Status: 'Success'
Stage 2: not selection1
selection1:
Location|contains: '<Countries you DO operate out of e,g GB, use OR for multiple>'
Exclusions
Top-level NOT(...) conjuncts: predicates this rule actively suppresses.
| Field | Kind | Excluded values |
|---|---|---|
Status | eq | Success |
Location | match | <Countries you DO operate out of e,g GB, use OR for multiple> |