Attempt to Modify Okta MFA Ruleedit

An adversary may attempt to modify an Okta multi-factor authentication (MFA) rule in order to remove or weaken an organization’s security controls.

Rule type: query

Rule indices:

  • filebeat-*
  • logs-okta*

Severity: low

Risk score: 21

Runs every: 5 minutes

Searches indices from: now-6m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

  • Elastic
  • Identity
  • Okta
  • Continuous Monitoring
  • SecOps
  • Identity and Access

Version: 2 (version history)

Added (Elastic Stack release): 7.9.0

Last modified (Elastic Stack release): 7.10.0

Rule authors: Elastic

Rule license: Elastic License

Potential false positivesedit

Consider adding exceptions to this rule to filter false positives if Okta MFA rules are regularly modified in your organization.

Investigation guideedit

The Okta Filebeat module must be enabled to use this rule.

Rule queryedit

event.dataset:okta.system and event.action:(policy.rule.update or
policy.rule.delete)

Rule version historyedit

Version 2 (7.10.0 release)
  • Updated query, changed from:

    event.module:okta and event.dataset:okta.system and
    event.action:(policy.rule.update or policy.rule.delete)