This documentation contains work-in-progress information for future Elastic Stack and Cloud releases. Use the version selector to view supported release docs. It also contains some Elastic Cloud serverless information. Check out our serverless docs for more details.
« Azure Service Principal Credentials Added Azure Virtual Network Device Modified or Deleted »
Elastic Docs ›Elastic Security Solution [8.16] ›Detections and alerts ›Prebuilt rule reference

Azure Storage Account Key Regenerated

edit

Azure Storage Account Key Regenerated

edit

Identifies a rotation to storage account access keys in Azure. Regenerating access keys can affect any applications or Azure services that are dependent on the storage account key. Adversaries may regenerate a key as a means of acquiring credentials to access systems and resources.

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
  • Identity and Access

Version: 101 (version history)

Added (Elastic Stack release): 7.10.0

Last modified (Elastic Stack release): 8.6.0

Rule authors: Elastic

Rule license: Elastic License v2

Potential false positives

edit

It’s recommended that you rotate your access keys periodically to help keep your storage account secure. Normal key rotation can be exempted from the rule. An abnormal time frame and/or a key rotation from unfamiliar users, hosts, or locations should be investigated.

Investigation guide

edit











Rule query
edit








event.dataset:azure.activitylogs and azure.activitylogs.operation_name
:"MICROSOFT.STORAGE/STORAGEACCOUNTS/REGENERATEKEY/ACTION" and
event.outcome:(Success or success)











Threat mapping
edit




Framework: MITRE ATT&CKTM














Rule version history
edit










Version 101 (8.6.0 release)








    

  • 
Formatting only

    • 









Version 100 (8.5.0 release)








    

  • 
Formatting only

    • 









Version 7 (8.4.0 release)








    

  • 
Formatting only

    • 









Version 5 (7.13.0 release)








    

  • 
Formatting only

    • 









Version 4 (7.12.0 release)








    

  • 

    Updated query, changed from:
    

    

    

    event.dataset:azure.activitylogs and azure.activitylogs.operation_name
:MICROSOFT.STORAGE/STORAGEACCOUNTS/REGENERATEKEY/ACTION and
event.outcome:(Success or success)
    

    

    • 









Version 3 (7.11.2 release)








    

  • 
Formatting only

    • 









Version 2 (7.11.0 release)








    

  • 

    Updated query, changed from:
    

    

    

    event.dataset:azure.activitylogs and azure.activitylogs.operation_name
:MICROSOFT.STORAGE/STORAGEACCOUNTS/REGENERATEKEY/ACTION and
event.outcome:Success
    

    

    • 




















« Azure Service Principal Credentials Added


Azure Virtual Network Device Modified or Deleted »