Credential added to Azure AD application
Set up the azure integration.
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Goal
Detects when a user adds a secret or certificate to an Azure Active Directory Application.
Strategy
Monitor Azure AD Audit logs for the following @evt.name:
Update application – Certificates and secrets managementAdd service principal credentials
Monitor Microsoft 365 Audit logs for the following @evt.name:
Update application – Certificates and secrets managementAdd service principal credentials.
An attacker can add a secret or certificate to an application in order to connect to Azure AD as the application and perform API operation leveraging the application permissions that are assigned to it.
Triage and response
- Determine if
{{@usr.id}} should have made a {{@evt.name}} API call. - If the API call was not made by the user:
- Remove the suspicious key.
- Invalidate all existing refresh tokens. This ensures the attacker is unable to connect to your tenant.
- Begin your organization’s Incident Response (IR) process.
- If the API call was made by the user:
- Ensure the change was authorized.
