TA0009 · COLLECTION
Remote Email Collection
Adversaries may target an Exchange server, Office 365, or Google Workspace to collect sensitive information. Adversaries may leverage a user's credentials and interact directly with the Exchange server to acquire information from within a network.
Detect it with
Monitor for unusual login activity from unknown or abnormal locations, especially for privileged accounts (ex: Exchange administrator account).
Why it matters on shift
Remote Email Collection is one of the concrete ways adversaries achieve collection. Recognising it in telemetry lets you name the technique in your ticket and pivot to what came before and after.
What to look for next
After collection, the next tactic is usually Command and Control. Search your telemetry for the transition before closing the ticket.
Kill-chain context