Azure Virtual Network Device Modified or Deleted
editAzure Virtual Network Device Modified or Deleted
editIdentifies when a virtual network device is modified or deleted. This can be a network virtual appliance, virtual hub, or virtual router.
Rule type: query
Rule indices:
- filebeat-*
- logs-azure*
Severity: low
Risk score: 21
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
- Network Security
Version: 2 (version history)
Added (Elastic Stack release): 7.16.0
Last modified (Elastic Stack release): 8.1.0
Rule authors: Austin Songer
Rule license: Elastic License v2
Potential false positives
editVirtual Network Device modification or deletion may be performed by a system administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment. Virtual Network Device modification or deletion by unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
Investigation guide
edit## Config The Azure Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.
Rule query
editevent.dataset:azure.activitylogs and azure.activitylogs.operation_name
:("MICROSOFT.NETWORK/NETWORKINTERFACES/TAPCONFIGURATIONS/WRITE" or
"MICROSOFT.NETWORK/NETWORKINTERFACES/TAPCONFIGURATIONS/DELETE" or
"MICROSOFT.NETWORK/NETWORKINTERFACES/WRITE" or
"MICROSOFT.NETWORK/NETWORKINTERFACES/JOIN/ACTION" or
"MICROSOFT.NETWORK/NETWORKINTERFACES/DELETE" or
"MICROSOFT.NETWORK/NETWORKVIRTUALAPPLIANCES/DELETE" or
"MICROSOFT.NETWORK/NETWORKVIRTUALAPPLIANCES/WRITE" or
"MICROSOFT.NETWORK/VIRTUALHUBS/DELETE" or
"MICROSOFT.NETWORK/VIRTUALHUBS/WRITE" or
"MICROSOFT.NETWORK/VIRTUALROUTERS/WRITE" or
"MICROSOFT.NETWORK/VIRTUALROUTERS/DELETE") and event.outcome:(Success
or success)
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Impact
- ID: TA0040
- Reference URL: https://attack.mitre.org/tactics/TA0040/
Rule version history
edit- Version 2 (8.1.0 release)
-
-
Updated query, changed from:
event.dataset:azure.activitylogs and azure.activitylogs.operation_name :("MICROSOFT.NETWORK/NETWORKINTERFACES/TAPCONFIGURATIONS/WRITE" or "MICROSOFT.NETWORK/NETWORKINTERFACES/TAPCONFIGURATIONS/DELETE" or "MICROSOFT.NETWORK/NETWORKINTERFACES/WRITE" or "MICROSOFT.NETWORK/NETWORKINTERFACES/JOIN/ACTION" or "MICROSOFT.NETWORK/NETWORKINTERFACES/DELETE"or "MICROSOFT.NETWORK/NETWORKVIRTUALAPPLIANCES/DELETE" or "MICROSOFT.NETWORK/NETWORKVIRTUALAPPLIANCES/WRITE" or "MICROSOFT.NETWORK/VIRTUALHUBS/DELETE" or "MICROSOFT.NETWORK/VIRTUALHUBS/WRITE" or "MICROSOFT.NETWORK/VIRTUALROUTERS/WRITE" or "MICROSOFT.NETWORK/VIRTUALROUTERS/DELETE") and event.outcome:(Success or success)
-