TA0004 · PRIVILEGE ESCALATION
Proc Memory
Adversaries may inject malicious code into processes via the /proc filesystem in order to evade process-based defenses as well as possibly elevate privileges.
Detect it with
File system monitoring can determine if /proc files are being modified. Users should not have permission to modify these in most cases.
Why it matters on shift
Proc Memory is one of the concrete ways adversaries achieve privilege escalation. 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 privilege escalation, the next tactic is usually Defense Evasion. Search your telemetry for the transition before closing the ticket.
Kill-chain context