TA0003 · PERSISTENCE
Compromise Host Software Binary
Adversaries may modify host software binaries to establish persistent access to systems. Software binaries/executables provide a wide range of system commands or services, programs, and libraries.
Detect it with
Collect and analyze signing certificate metadata and check signature validity on software that executes within the environment. Look for changes to client software that do not correlate with known software or patch cycles.
Why it matters on shift
Compromise Host Software Binary is one of the concrete ways adversaries achieve persistence. 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 persistence, the next tactic is usually Privilege Escalation. Search your telemetry for the transition before closing the ticket.
Kill-chain context