ConsoleLogin event correlates privileged policy applying to a role

aws

Classification:

attack

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Goal

Correlate a brute force login with a privileged policy being applied to a role.

Strategy

Correlate the Potential brute force attack on AWS ConsoleLogin and cloudtrail AWS IAM AdministratorAccess policy was applied to a role signals based on the ARN: {{@userIdentity.arn}}.

Triage and response

  1. Set signal triage state to Under Review.
  2. Determine if the brute force attack was successful.
    • If the login was not legitimate:
      • Revert the privileged policy change
      • Rotate credentials on the brute forced account
      • Enable MFA if it is not already
    • If the login was legitimate:
      • Triage the signal as a false positive