TA0008 · LATERAL MOVEMENT
Internal Spearphishing
After they already have access to accounts or systems within the environment, adversaries may use internal spearphishing to gain access to additional information or compromise other users within the same organization.
Detect it with
Network intrusion detection systems and email gateways usually do not scan internal email, but an organization can leverage the journaling-based solution which sends a copy of emails to a security service for offline analysis or incorporate service-integrated solutions using…
Why it matters on shift
Internal Spearphishing is one of the concrete ways adversaries achieve lateral movement. 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 lateral movement, the next tactic is usually Collection. Search your telemetry for the transition before closing the ticket.
Kill-chain context