T1491.001 Internal Defacement
sub-techniqueEnterpriseAn adversary may deface systems internal to an organization in an attempt to intimidate or mislead users, thus discrediting the integrity of the systems. This may take the form of modifications to internal websites or server login messages, or directly to user systems with the replacement of the desktop wallpaper. Disturbing or offensive images may be used as a part of Internal Defacement in order to cause user discomfort, or to pressure compliance with accompanying messages. Since internally defacing systems exposes an adversary's presence, it often takes place after other intrusion goals have been accomplished.
platforms
Platforms this applies to.
tactics
ATT&CK tactics this technique serves.
sub-technique of
The broader entity this sits under.
mitigations
ATT&CK mitigations that reduce this.
detected by (7)
Data components that detect this.
NIST CSF 2.0 — areas of relevance (Protect / Detect)
NIST CSF 2.0 areas this most relates to (evidence-ranked).
- PR.DSData Securitystrong · backed by 5 of 10 mapped controls
- PR.IRTechnology Infrastructure Resiliencemoderate · backed by 3 of 10 mapped controls
- RC.RPIncident Recovery Plan Executionmoderate · backed by 3 of 10 mapped controls
Derived from MITRE CTID (Apache-2.0) and the NIST 800-53 ↔ CSF crosswalk (public domain). Indicative relevance along the Protect/Detect axis — not a compliance assessment or coverage claim.
mitigating controls (10)
Security controls that mitigate this.
groups (4)
Threat groups associated with this.
software (12)
Malware and tools associated with this.
Detected by (Sigma) (4)
Sigma detection rules related to this.
source
Where this definition is published.