sigmaDRL-1.1from SigmaHQ/sigma
User Access Blocked by Azure Conditional Access
Detect access has been blocked by Conditional Access policies. The access policy does not allow token issuance which might be sights≈ of unauthorizeed login to valid accounts.
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Rule sourcerules/cloud/azure/signin_logs/azure_user_login_blocked_by_conditional_access.yml
title: User Access Blocked by Azure Conditional Access
id: 9a60e676-26ac-44c3-814b-0c2a8b977adf
status: test
description: |
Detect access has been blocked by Conditional Access policies.
The access policy does not allow token issuance which might be sights≈ of unauthorizeed login to valid accounts.
references:
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-privileged-accounts
author: AlertIQ
date: 2021-10-10
modified: 2022-12-25
tags:
- attack.privilege-escalation
- attack.persistence
- attack.defense-evasion
- attack.credential-access
- attack.initial-access
- attack.t1110
- attack.t1078.004
logsource:
product: azure
service: signinlogs
detection:
selection:
ResultType: 53003
condition: selection
falsepositives:
- Unknown
level: medium