ATT&CK matrix
T1571
Non-Standard Port
TA0011Command and Control
Adversaries may communicate using a protocol and port pairing that are typically not associated. For example, HTTPS over port 8088(Citation: Symantec Elfin Mar 2019) or port 587(Citation: Fortinet Agent Tesla April 2018) as opposed to the traditional port 443. Adversaries may make changes to the standard port used by a protocol to bypass filtering or muddle analysis/parsing of network data.
Adversaries may also make changes to victim systems to abuse non-standard ports. For example, Registry keys and other configuration settings can be used to modify protocol and port pairings.(Citation: change_rdp_port_conti)
Platforms4
ESXiLinuxmacOSWindows
CVEs mapped to this technique
No CVE mappings yet
ATT&CK ↔ CVE mappings come from CTID's open dataset, which currently covers only a fraction of all techniques. Commercial threat-intel feeds would expand this.