How Darktrace / EMAIL Analyzes and Responds to a Malicious Email

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Summary

Darktrace describes how its email security product processes a sample extortion email, from extracting message data and analyzing user behavior to identifying a campaign and holding related emails.

Key points

  • The example extortion email passed SPF, DKIM, and DMARC checks, but the system continued analyzing it.
  • The product extracts email headers and content, then uses historical data and mailbox behavior to identify anomalies.
  • Metrics include language-based extortion detection and identification of sensitive data.
  • A model flagged the example based on its extortion score and bitcoin wallet address, triggering a hold on the message.
  • Campaign clustering can identify related emails and apply a hold to campaign messages retroactively.
  • The system combines alerts and anomaly scores in its interface for security teams to investigate.

Article Details

Topic
How Darktrace / EMAIL uses multi-layered AI to analyze emails, detect threats, and apply autonomous actions

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