Okta New Device Enrolled on Account

 Original Source: [splunk source]
Name:Okta New Device Enrolled on Account
id:bb27cbce-d4de-432c-932f-2e206e9130fb
version:14
date:None
author:Michael Haag, Mauricio Velazco, Splunk
status:production
type:TTP
Description:The following analytic identifies when a new device is enrolled on an Okta account. It uses OktaIm2 logs ingested via the Splunk Add-on for Okta Identity Cloud to detect the creation of new device enrollments. This activity is significant as it may indicate a legitimate user setting up a new device or an adversary adding a device to maintain unauthorized access. If confirmed malicious, this could lead to potential account takeover, unauthorized access, and persistent control over the compromised Okta account. Monitoring this behavior is crucial for detecting and mitigating unauthorized access attempts.
Data_source:
  • -Okta
search:| tstats `security_content_summariesonly` count max(_time) as lastTime, min(_time) as firstTime FROM datamodel=Change
WHERE All_Changes.action=created All_Changes.command=device.enrollment.create
BY _time span=5m All_Changes.user
All_Changes.result All_Changes.command sourcetype
All_Changes.src All_Changes.action All_Changes.object_category
All_Changes.dest
| `drop_dm_object_name("All_Changes")`
| `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)`
| `okta_new_device_enrolled_on_account_filter`


how_to_implement:The analytic leverages Okta OktaIm2 logs to be ingested using the Splunk Add-on for Okta Identity Cloud (https://splunkbase.splunk.com/app/6553).
known_false_positives:It is possible that the user has legitimately added a new device to their account. Please verify this activity.
References:
  -https://attack.mitre.org/techniques/T1098/005/
  -https://developer.okta.com/docs/reference/api/event-types/?q=device.enrollment.create
drilldown_searches:
 name:'View the detection results for - "$user$"'
 search:'%original_detection_search% | search user = "$user$"'
 earliest_offset:'$info_min_time$'
 latest_offset:'$info_max_time$'
 name:'View risk events for the last 7 days for - "$user$"'
 search:'| from datamodel Risk.All_Risk | search normalized_risk_object IN ("$user$") | stats count min(_time) as firstTime max(_time) as lastTime values(search_name) as "Search Name" values(risk_message) as "Risk Message" values(analyticstories) as "Analytic Stories" values(annotations._all) as "Annotations" values(annotations.mitre_attack.mitre_tactic) as "ATT&CK Tactics" by normalized_risk_object | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`'
 earliest_offset:'7d'
 latest_offset:'0'
analytic_story:['Okta Account Takeover', 'Scattered Lapsus$ Hunters']

asset_type:Okta Tenant

mitre_attack_id:['T1098.005']

product:['Splunk Enterprise', 'Splunk Enterprise Security', 'Splunk Cloud']

category:application

security_domain:identity

tags:

tests:
 name:'True Positive Test'
 attack_data:
  data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1098.005/okta_new_device_enrolled/okta_new_device_enrolled.log
  source: Okta
  sourcetype: OktaIM2:log
 test_type:'unit'
manual_test:None