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Port 12346 Details


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Port(s) Protocol Service Details Source
12346 tcp NetBus Because of the common sequence of numbers "1 2 3 4 5" port 12346 is also commonly chosen when configuring programs, or as default port number. It is also used by some malware.

Rhapsody music service (Android) uses port 12346/tcp

NetBus trojan
Some other trojans/backdoors that use this port: Ashley, Fat Bitch trojan, GabanBus, icmp_client.c, icmp_pipe.c, Mypic, NetBus, Pie Bill Gates, Whack Job, X-bill

Backdoor.Wasil [Symantec-2002-090617-0925-99] (2002.09.06) - a backdoor trojan that gives an attacker unauthorized access to an infected computer. By default it opens ports 12346 on the compromised computer.
SG
12346 udp cisco Cisco SD-WAN edge devices use these ports to establish connections with peers in the overlay network:
ports 12346, 12446, 12546, 12646 (UDP, if DTLS)
ports: 23456, 23556, 23656, 23756 (TCP, if DTLS)
SG
12346 tcp trojan [trojan] NetBus Trojans
12346 tcp FatBitchtrojan [trojan] Fat Bitch trojan SANS
12346 tcp GabanBus [trojan] GabanBus SANS
12346 tcp NetBus [trojan] NetBus SANS
12346 tcp NetBus [trojan] NetBus backdoor trojan SANS
12346 tcp X-bill [trojan] X-bill SANS
12346 tcp netbus NetBus backdoor trojan Nmap
12346 tcp,udp threat Fat Bitch trojan Bekkoame
12346 tcp,udp threat GabanBus Bekkoame
12346 tcp,udp threat NetBus Bekkoame
12346 tcp,udp threat X-bill Bekkoame
12346-12752 tcp,udp Unassigned IANA
14 records found
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Related ports: 12345  20034  23456  12446  12546  23456  23556  

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External Resources
SANS ISC: port 12346

Notes:
Port numbers in computer networking represent communication endpoints. Ports are unsigned 16-bit integers (0-65535) that identify a specific process, or network service. IANA is responsible for internet protocol resources, including the registration of commonly used port numbers for well-known internet services.
Well Known Ports: 0 through 1023.
Registered Ports: 1024 through 49151.
Dynamic/Private : 49152 through 65535.

TCP ports use the Transmission Control Protocol, the most commonly used protocol on the Internet and any TCP/IP network. TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees delivery of data and that packets will be delivered in the same order in which they were sent. Guaranteed communication/delivery is the key difference between TCP and UDP.

UDP ports use the Datagram Protocol. Like TCP, UDP is used in combination with IP (the Internet Protocol) and facilitates the transmission of datagrams from one computer to applications on another computer, but unlike TCP, UDP is connectionless and does not guarantee reliable communication; it's up to the application that received the message to process any errors and verify correct delivery. UDP is often used with time-sensitive applications, such as audio/video streaming and realtime gaming, where dropping some packets is preferable to waiting for delayed data.

When troubleshooting unknown open ports, it is useful to find exactly what services/processes are listening to them. This can be accomplished in both Windows command prompt and Linux variants using the "netstat -aon" command. We also recommend runnig multiple anti-virus/anti-malware scans to rule out the possibility of active malicious software. For more detailed and personalized help please use our forums.

Please use the "Add Comment" button below to provide additional information or comments about port 12346.
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by Scott A - 2013-03-24 16:47
tcp port 12346 is used by the Android version of the Rhapsody music service. It is open any time the app or the background service is running. As far as I can tell it is not registered with the IANA.
by anonymous - 2021-02-24 16:55
This port is also used by Cisco's SD-WAN edge devices to establish connections with peers in the overlay network. Mostly seems to use UDP. https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/sdwan-xe-gs-book/cisco-sd-wan-overlay-network-bringup.html#c_Firewall_Ports_for_Viptela_Deployments_8690.xml
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