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Description

This search detects the addition of a new Federated domain.

  • Type: TTP
  • Product: Splunk Security Analytics for AWS, Splunk Enterprise, Splunk Enterprise Security, Splunk Cloud
  • Datamodel:
  • Last Updated: 2021-01-26
  • Author: Rod Soto, Splunk
  • ID: e155876a-6048-11eb-ae93-0242ac130002

ATT&CK

ID Technique Tactic
T1136.003 Cloud Account Persistence
T1136 Create Account Persistence
`o365_management_activity` Workload=Exchange Operation="Add-FederatedDomain" 
| stats count min(_time) as firstTime max(_time) as lastTime values(Parameters{}.Value) as Parameters.Value by ObjectId Operation OrganizationName OriginatingServer UserId UserKey 
| `security_content_ctime(firstTime)` 
| `security_content_ctime(lastTime)` 
| `o365_new_federated_domain_added_filter`

Associated Analytic Story

How To Implement

You must install splunk Microsoft Office 365 add-on. This search works with o365:management:activity.

Required field

  • _time
  • Workload
  • Operation
  • Parameters{}.Value
  • ObjectId
  • OrganizationName
  • OriginatingServer
  • UserId
  • UserKey

Kill Chain Phase

  • Actions on Objective

Known False Positives

The creation of a new Federated domain is not necessarily malicious, however these events need to be followed closely, as it may indicate federated credential abuse or backdoor via federated identities at a similar or different cloud provider.

RBA

Risk Score Impact Confidence Message
64.0 80 80 User $UserId$ has added a new federated domaain $Parameters.Value$ for $OrganizationName$

Reference

Test Dataset

Replay any dataset to Splunk Enterprise by using our replay.py tool or the UI. Alternatively you can replay a dataset into a Splunk Attack Range

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