A machine learning job detected a user logging in at a time of day that is unusual for the user. This can be due to credentialed access via a compromised account when the user and the threat actor are in different time zones. In addition, unauthorized user activity often takes place during non-business hours.
Rule type: machine_learning
Machine learning job: auth_rare_hour_for_a_user
Machine learning anomaly threshold: 75
Risk score: 21
Runs every: 15 minutes
Maximum alerts per execution: 100
- Threat Detection
Added (Elastic Stack release): 7.14.0
Rule authors: Elastic
Rule license: Elastic License v2
Users working late, or logging in from unusual time zones while traveling, may trigger this rule.