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Create azure_vault_key_modified_or_deleted.yml

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Austin Songer
2021-08-16 23:50:56 -05:00
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rules/cloud/azure/azure_vault_key_modified_or_deleted.yml
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title: Azure Key Modified or Deleted
id: 80eeab92-0979-4152-942d-96749e11df40
description: Identifies when a key is modified or deleted in Azure.
author: Austin Songer
status: experimental
date: 2021/08/16
references:
- https://docs.microsoft.com/en-us/azure/role-based-access-control/resource-provider-operations
logsource:
service: azure.activitylogs
detection:
selection:
properties.message:
- 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
level: medium
tags:
- attack.impact
falsepositives:
- Key being modified or 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.
- Key modified or deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.