ATT&CK Reference
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TA0040 · IMPACT

Internal Defacement

T1491.001Sub-technique of DefacementLinux · macOS · Windows · ESXiattack.mitre.org

An adversary may deface systems internal to an organization in an attempt to intimidate or mislead users, thus discrediting the integrity of the systems.

Detect it with

Monitor internal and websites for unplanned content changes. Monitor application logs for abnormal behavior that may indicate attempted or successful exploitation.

Why it matters on shift

Internal 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.

Kill-chain context

← beforeExfiltrationImpact