Azure Event Hub Deletionedit
Identifies an Event Hub deletion in Azure. An Event Hub is an event processing service that ingests and processes large volumes of events and data. An adversary may delete an Event Hub in an attempt to evade detection.
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
- Log Auditing
Version: 1
Added (Elastic Stack release): 7.10.0
Rule authors: Elastic
Rule license: Elastic License
Potential false positivesedit
Event Hub deletions 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. Event Hub deletions from unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
Investigation guideedit
The Azure Filebeat module must be enabled to use this rule.
Rule queryedit
event.dataset:azure.activitylogs and azure.activitylogs.operation_name :MICROSOFT.EVENTHUB/NAMESPACES/EVENTHUBS/DELETE and event.outcome:Success
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Disabling Security Tools
- ID: T1089
- Reference URL: https://attack.mitre.org/techniques/T1089/