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Unusual Login Activity

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Unusual Login Activity

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Identifies an unusually high number of authentication attempts.

Rule type: machine_learning

Machine learning job: suspicious_login_activity

Machine learning anomaly threshold: 50

Severity: low

Risk score: 21

Runs every: 15 minutes

Searches indices from: now-45m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

https://www.elastic.co/guide/en/security/current/prebuilt-ml-jobs.html

Tags:

Elastic
Authentication
Threat Detection
ML
Credential Access

Version: 6 (version history)

Added (Elastic Stack release): 7.7.0

Last modified (Elastic Stack release): 8.4.0

Rule authors: Elastic

Rule license: Elastic License v2

Potential false positives

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Security audits may trigger this alert. Conditions that generate bursts of failed logins, such as misconfigured applications or account lockouts could trigger this alert. ==== Threat mapping

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Credential Access
- ID: TA0006
- Reference URL: https://attack.mitre.org/tactics/TA0006/
Technique:
- Name: Brute Force
- ID: T1110
- Reference URL: https://attack.mitre.org/techniques/T1110/

Rule version history

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Version 6 (8.4.0 release)

Formatting only

Version 5 (8.3.0 release)

Formatting only

Version 4 (7.12.0 release)

Formatting only

Version 3 (7.10.0 release)

Formatting only

Version 2 (7.9.0 release)

Formatting only

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