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T1071 · ATT&CK technique

Application Layer Protocol

6 actors on record using it

Every mark is an actor ATT&CK records using this technique. Red ones also exploit a CVE in CISA KEV.

Open T1071 on attack.mitre.org

Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.

Source: MITRE ATT&CK, T1071. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.

Data as of 2026-11-15. CVE List through 2026-11-15 · EPSS of 2026-11-14 · CISA KEV checked 2026-11-15. Sources: MITRE ATT&CK (© The MITRE Corporation, reproduced and distributed with its permission), the MISP Galaxy (CC0), and CyberSIXT's own coverage.