detection.wiki

Detection rules › Sigma

Azure Application Deleted

Status
test
Severity
medium
Log source
product azure, service auditlogs
Author
Austin Songer @austinsonger
Source
github.com/SigmaHQ/sigma

Identifies when a application is deleted in Azure.

Known false positives

  • Application being deleted may be performed by a system administrator.
  • Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
  • Application deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.

MITRE ATT&CK coverage

TacticTechniques
Impact

Telemetry coverage

PlatformRecord / event type
AzureDelete application
AzureHard Delete application
AzureDelete administrative unit

Rules detecting the same action

These rules filter on the same operation.

Rule body

title: Azure Application Deleted
id: 410d2a41-1e6d-452f-85e5-abdd8257a823
status: test
description: Identifies when a application is deleted in Azure.
references:
    - https://learn.microsoft.com/en-us/entra/identity/monitoring-health/reference-audit-activities#application-proxy
    - https://learn.microsoft.com/en-us/entra/identity/monitoring-health/reference-audit-activities#core-directory
    - https://techcommunity.microsoft.com/blog/microsoft-entra-blog/keeping-track-of-object-deletions-in-microsoft-entra-id/4053415
author: Austin Songer @austinsonger
date: 2021-09-03
modified: 2026-04-30
tags:
    - attack.impact
    - attack.t1489
logsource:
    product: azure
    service: auditlogs
detection:
    selection:
        operationName:
            - 'Delete application'
            - 'Hard Delete application'
            - 'Delete administrative unit'
    condition: selection
falsepositives:
    - Application being deleted may be performed by a system administrator.
    - Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
    - Application deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
level: medium

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    operationName:
        - 'Delete application'
        - 'Hard Delete application'
        - 'Delete administrative unit'

Indicators

These rows show field, operator, and value matches.

FieldKindValuesSearch
operationNameeq
  • Delete administrative unit
  • Delete application
  • Hard Delete application
field:"operationName" kind:eq