Azure Key Vault Modified
editAzure Key Vault Modified
editIdentifies 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
editKey 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
editThe Azure Filebeat module must be enabled to use this rule.
Rule query
editevent.dataset:azure.activitylogs and azure.activitylogs.operation_name:MICROSOFT.KEYVAULT/VAULTS/WRITE and event.outcome:Success
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Credential Access
- ID: TA0006
- Reference URL: https://attack.mitre.org/tactics/TA0006/
-
Technique:
- Name: Credentials in Files
- ID: T1081
- Reference URL: https://attack.mitre.org/techniques/T1081/