IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.
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Elastic Docs ›Elastic Security Solution [7.10] ›Detections and Alerts ›Prebuilt rule reference

Azure Key Vault Modified

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Azure Key Vault Modified

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Identifies modifications to a Key Vault in Azure. The Key Vault is a service that safeguards encryption keys and secrets like certificates, connection strings, and passwords. Because this data is sensitive and business critical, access to key vaults should be secured to allow only authorized applications and users.

Rule type: query

Rule indices:

  • filebeat-*

Severity: medium

Risk score: 47

Runs every: 5 minutes

Searches indices from: now-25m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

  • Elastic
  • Cloud
  • Azure
  • Continuous Monitoring
  • SecOps
  • Data Protection

Version: 1

Added (Elastic Stack release): 7.10.0

Rule authors: Elastic

Rule license: Elastic License

Potential false positives

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Key vault modifications may be done by a system or network administrator. Verify whether the username, hostname, and/or resource name should be making changes in your environment. Key vault modifications from unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.

Investigation guide

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The Azure Filebeat module must be enabled to use this rule.

Rule query

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event.dataset:azure.activitylogs and
azure.activitylogs.operation_name:MICROSOFT.KEYVAULT/VAULTS/WRITE and
event.outcome:Success

Threat mapping

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Framework: MITRE ATT&CKTM

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