TA0040 · IMPACT
Defacement
Adversaries may modify visual content available internally or externally to an enterprise network, thus affecting the integrity of the original content.
Detect it with
Monitor internal and external websites for unplanned content changes. Monitor application logs for abnormal behavior that may indicate attempted or successful exploitation.
Why it matters on shift
Defacement is one of the concrete ways adversaries achieve impact. 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 impact, the next tactic is usually Impact. Search your telemetry for the transition before closing the ticket.
2 sub-techniques
How it shows up in practice
- T1491.001
Internal Defacement
An adversary may deface systems internal to an organization in an attempt to intimidate or mislead users, thus discrediting the integrity of the systems.
- T1491.002
External Defacement
An adversary may deface systems external to an organization in an attempt to deliver messaging, intimidate, or otherwise mislead an organization or users.
Kill-chain context