Azure Application Deleted

 1title: Azure Application Deleted
 2id: 410d2a41-1e6d-452f-85e5-abdd8257a823
 3status: test
 4description: Identifies when a application is deleted in Azure.
 5references:
 6    - https://learn.microsoft.com/en-us/entra/identity/monitoring-health/reference-audit-activities#application-proxy
 7author: Austin Songer @austinsonger
 8date: 2021-09-03
 9modified: 2022-10-09
10tags:
11    - attack.impact
12    - attack.t1489
13logsource:
14    product: azure
15    service: activitylogs
16detection:
17    selection:
18        properties.message:
19            - Delete application
20            - Hard Delete application
21    condition: selection
22falsepositives:
23    - Application being deleted may be performed by a system administrator.
24    - Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
25    - Application deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
26level: medium