AWS Cross Account Activity From Previously Unseen Account

Description

This search looks for AssumeRole events where an IAM role in a different account is requested for the first time. This search is deprecated and have been translated to use the latest Authentication Datamodel.

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AWS Cross Account Activity From Previously Unseen Account Help

You must be ingesting your cloud infrastructure logs from your cloud provider. You should run the baseline search Previously Seen AWS Cross Account Activity - Initial to build the initial table of source IP address, geographic locations, and times. You must also enable the second baseline search Previously Seen AWS Cross Account Activity - Update to keep this table up to date and to age out old data. You can also provide additional filtering for this search by customizing the aws_cross_account_activity_from_previously_unseen_account_filter macro.

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   Baseline Generation Searches

This detection relies on the following searches to generate the baseline lookup.

  • Previously Seen AWS Cross Account Activity
  • Previously Seen AWS Cross Account Activity - Initial
  • Previously Seen AWS Cross Account Activity - Update