Applied Cybernetics Group
T1491.002 — External Defacement
coverage gap
- Technique
T1491.002- Tactics
- Impact
- MISP citations
- 0
- KEV CVEs mapped
- 1
- Community rules
- 0
- thrunt rules
- 0
- Upstream
- https://attack.mitre.org/techniques/T1491/002
MITRE description
An adversary may deface systems external to an organization in an attempt to deliver messaging, intimidate, or otherwise mislead an organization or users. [External Defacement](https://attack.mitre.org/techniques/T1491/002) may ultimately cause users to distrust the systems and to question/discredit the system’s integrity. Externally-facing websites are a common victim of defacement; often targeted by adversary and hacktivist groups in order to push a political message or spread propaganda.(Citation: FireEye Cyber Threats to Media Industries)(Citation: Kevin Mandia Statement to US Senate Committee on Intelligence)(Citation: Anonymous Hackers Deface Russian Govt Site) [External Defacement](https://attack.mitre.org/techniques/T1491/002) may be used as a catalyst to trigger events, or as a response to actions taken by an organization or government. Similarly, website defacement may also be used as setup, or a precursor, for future attacks such as [Drive-by Compromise](https://attack.mitre.org/techniques/T1189).(Citation: Trend Micro Deep Dive Into Defacement)
KEV CVEs mapped to this technique
Per MITRE CTID's hand-curated KEV→ATT&CK mappings — these are the actively-exploited vulnerabilities behind this technique's KEV signal.
Detection coverage
No detection coverage exists for this technique — no SigmaHQ community rule carries its tag and thrunt has not authored one yet. Techniques on this list are exactly where hand-authoring effort goes next; see the rollup for the full queue.