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Rare application consent

This will alert when the "Consent to application" operation occurs by a user that has not done this operation before or rarely does this. This could indicate that permissions to access the listed Azure App were…

Description

This will alert when the "Consent to application" operation occurs by a user that has not done this operation before or rarely does this. This could indicate that permissions to access the listed Azure App were provided to a malicious actor. Consent to application, Add service principal and Add OAuth2PermissionGrant should typically be rare events. This may help detect the Oauth2 attack that can be initiated by this publicly available tool - https://github.com/fireeye/PwnAuth For further information on AuditLogs please see https://docs.microsoft.com/azure/active-directory/reports-monitoring/reference-audit-activities.

Detection logic

Detection requirements

Platform
ContainersESXiIaaSIdentity ProviderLinuxmacOSNetwork DevicesOffice SuiteSaaSWindows

The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.

Log source product
azureactivedirectory
Log source service
auditlogs

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