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Bidda Sovereign Intelligence · 10,065 Verified Nodes · 39 Sovereign Pillars

MITRE CAPEC-556: Replace File Extension Handlers (Detailed Attack Pattern)

MITRE CAPEC-556 (Replace File Extension Handlers) is a detailed-level attack pattern in the MITRE Common Attack Pattern Enumeration and Classification.…

Compliance Node Overview

MITRE CAPEC-556 (Replace File Extension Handlers) is a detailed-level attack pattern in the MITRE Common Attack Pattern Enumeration and Classification. When a file is opened, its file handler is checked to determine which program opens the file. File handlers are configuration properties of many operating systems. Applications can modify the file handler for a given file extension to call an arbitrary program when a file with the given extension is opened. Likelihood of attack: Unknown. Maps to weaknesses CWE-284. Relates to MITRE ATT&CK T1546.001.

Pillar: Cybersecurity · Authority: MITRE Corporation · Version: 1.0.0 · Last updated: 2026-05-25

Primary source: https://capec.mitre.org/data/definitions/556.html

SHA-256 integrity: 1a5d6ce8d31eb6110614a31527d892d384efe9a3c1422419610e76db0c81325a

Primary Citations — 9 traced to source

MITRE CAPEC-556: Replace File Extension Handlers (https://capec.mitre.org/data/definitions/556.html)
CWE-284: underlying weakness (http://cwe.mitre.org/data/definitions/284.html)

+ 7 more citations (full bibliography, deterministic workflow, actionable schema and crosswalks) included in the vault unlock — $0.01 via Skyfire / L402 / Direct Base USDC.

Access

Discovery (free): /api/v1/nodes/mitre-capec-capec-556-replace-file-extension-handlers.json — 6-field metadata
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Canonical URL: https://bidda.com/intelligence/mitre-capec-capec-556-replace-file-extension-handlers
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