MITRE ATT&CKtechnique

T0885 Commonly Used Port

Published 2020-05-21 Modified 2026-10-13 Official page ↗
Domain
ics
Tactics
Command And Control
Platforms
Embedded, Windows, Linux, Network Devices
Version
1.1
Created
2020-05-21

Description

Adversaries 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. • TCP:80 (HTTP) • TCP:443 (HTTPS) • TCP/UDP:53 (DNS) • TCP:1024-4999 (OPC on XP/Win2k3) • TCP:49152-65535 (OPC on Vista and later) • TCP:23 (TELNET) • UDP:161 (SNMP) • TCP:502 (MODBUS) • TCP:102 (S7comm/ISO-TSAP) • TCP:20000 (DNP3) • TCP:44818 (Ethernet/IP)

Related

Tactic · MITRE ATT&CK (1)

  • TA0101 Command and Control tactic

Referenced by MITRE ATT&CK · mitigates (4)

  • M0804 Human User Authentication mitigation
  • M0942 Disable or Remove Feature or Program mitigation
  • M0930 Network Segmentation mitigation
  • M0931 Network Intrusion Prevention mitigation

Referenced by MITRE ATT&CK · uses (6)

  • C0063 2025 Poland Wiper Attacks campaign
  • S1165 FrostyGoop software (malware)
  • G1027 CyberAv3ngers group
  • C0028 2015 Ukraine Electric Power Attack campaign
  • S0603 Stuxnet software (malware)
  • S1009 Triton software (malware)