TA0005 · DEFENSE EVASION
Fileless Storage
Adversaries may store data in "fileless" formats to conceal malicious activity from defenses. Fileless storage can be broadly defined as any format other than a file.
Detect it with
No MITRE detection guidance published. Build coverage from the parent technique and your own telemetry.
Why it matters on shift
Fileless Storage is one of the concrete ways adversaries achieve defense evasion. 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 defense evasion, the next tactic is usually Credential Access. Search your telemetry for the transition before closing the ticket.
Kill-chain context