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Detection rules › Sigma

End User Consent Blocked

Status
test
Severity
medium
Log source
product azure, service auditlogs
Author
Bailey Bercik '@baileybercik', Mark Morowczynski '@markmorow'
Source
github.com/SigmaHQ/sigma

Detects when end user consent is blocked due to risk-based consent.

MITRE ATT&CK coverage

TacticTechniques
Credential Access

Telemetry coverage

PlatformRecord / event type
Azureany: Entra ID audit event (any operation)

Rule body

title: End User Consent Blocked
id: 7091372f-623c-4293-bc37-20c32b3492be
status: test
description: Detects when end user consent is blocked due to risk-based consent.
references:
    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-applications#end-user-stopped-due-to-risk-based-consent
author: Bailey Bercik '@baileybercik', Mark Morowczynski '@markmorow'
date: 2022-07-10
tags:
    - attack.credential-access
    - attack.t1528
logsource:
    product: azure
    service: auditlogs
detection:
    selection:
        failure_status_reason: 'Microsoft.online.Security.userConsentBlockedForRiskyAppsExceptions'
    condition: selection
falsepositives:
    - Unknown
level: medium

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    failure_status_reason: 'Microsoft.online.Security.userConsentBlockedForRiskyAppsExceptions'

Indicators

These rows show field, operator, and value matches.

FieldKindValuesSearch
failure_status_reasoneq
  • Microsoft.online.Security.userConsentBlockedForRiskyAppsExceptions
field:"failure_status_reason" kind:eq value:"Microsoft.online.Security.userConsentBlockedForRiskyAppsExceptions"