TA0006 · CREDENTIAL ACCESS
Steal Web Session Cookie
An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.
Detect it with
Monitor for attempts to access files and repositories on a local system that are used to store browser session cookies. Monitor for attempts by programs to inject into or dump browser process memory.
Why it matters on shift
Steal Web Session Cookie 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