Classification:

attack

Tactic:

TA0005-defense-evasion

Technique:

T1562-impair-defenses

VIEW RULE IN DATADOG VIEW SIGNALS

Goal

Detect when a diagnostic setting is deleted which can disable centralized logging and metrics on Azure.

Strategy

Monitor Azure logs where @evt.name is "MICROSOFT.INSIGHTS/DIAGNOSTICSETTINGS/DELETE" and @evt.outcome is Success.

Triage and response

1. Inspect the diagnostic setting resource which is found in @resourceId.
2. Verify that the user ({{@usr.id}}) to determine if the removal of the resource is legitimate.