TA0009 · COLLECTION
Browser Session Hijacking
Adversaries may take advantage of security vulnerabilities and inherent functionality in browser software to change content, modify user-behaviors, and intercept information as part of various browser session hijacking techniques.
Detect it with
This may be a difficult technique to detect because adversary traffic may be masked by normal user traffic. New processes may not be created and no additional software dropped to disk.
Why it matters on shift
Browser Session Hijacking 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