Suspicious Azure Keyvault Key Modified or Deleted (via activitylogs)

This rule detects when a Keyvault Key is modified or deleted in Azure.

SigmamediumCloudv1
sigma
title: Suspicious Azure Keyvault Key Modified or Deleted (via activitylogs)
id: 26ff1c06-632a-5047-85f4-91b6c2871f51
status: stable
description: This rule detects when a Keyvault Key is modified or deleted in Azure.
references:
    - https://attack.mitre.org/techniques/T1552/001/
    - https://attack.mitre.org/techniques/T1552/
    - https://learn.microsoft.com/en-us/azure/role-based-access-control/resource-provider-operations
author: Huntrule Team
date: 2026-04-25
tags:
    - attack.impact
    - attack.credential-access
    - attack.t1552
    - attack.t1552.001
logsource:
    product: azure
    service: activitylogs
detection:
    selection:
        operationName:
            - MICROSOFT.KEYVAULT/VAULTS/KEYS/UPDATE/ACTION
            - MICROSOFT.KEYVAULT/VAULTS/KEYS/CREATE
            - MICROSOFT.KEYVAULT/VAULTS/KEYS/CREATE/ACTION
            - MICROSOFT.KEYVAULT/VAULTS/KEYS/IMPORT/ACTION
            - MICROSOFT.KEYVAULT/VAULTS/KEYS/RECOVER/ACTION
            - MICROSOFT.KEYVAULT/VAULTS/KEYS/RESTORE/ACTION
            - MICROSOFT.KEYVAULT/VAULTS/KEYS/DELETE
            - MICROSOFT.KEYVAULT/VAULTS/KEYS/BACKUP/ACTION
            - MICROSOFT.KEYVAULT/VAULTS/KEYS/PURGE/ACTION
    condition: selection
falsepositives:
    - Unknown
level: medium

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.