TA0006 · CREDENTIAL ACCESS
Web Portal Capture
Adversaries may install code on externally facing portals, such as a VPN login page, to capture and transmit credentials of users who attempt to log into the service.
Detect it with
File monitoring may be used to detect changes to files in the Web directory for organization login pages that do not match with authorized updates to the Web server's content.
Why it matters on shift
Web Portal Capture is one of the concrete ways adversaries achieve credential access. 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 credential access, the next tactic is usually Discovery. Search your telemetry for the transition before closing the ticket.
Kill-chain context