T0885 · ATT&CK technique
Commonly Used Port
1 actor 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 T0885 on attack.mitre.orgAdversaries may communicate over a commonly used port to bypass firewalls or network detection systems and to blend in with normal network activity, to avoid more detailed inspection. They may use the protocol associated with the port, or a completely different protocol. They may use commonly open ports, such as the examples provided below.
Source: MITRE ATT&CK, T0885. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.
Every one of the 1 is a mark on the map. Named now: 1 to 1, most on record first.
Zoom in on the map and the dots under the middle of it are named where they are.
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.