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Port 54321 Details
known port assignments and vulnerabilities
threat/application/port search:
| Port(s) |
Protocol |
Service |
Details |
Source |
| 54321 |
tcp |
various |
Citrix admin workstation connects to provisioning server over ports 54321-54323 TCP for SOAP service, used by console and APIs (MCLI, PowerShell, etc.)
opendkim default port (may also use ports 8891,12345)
Trojans using this port:
Schoolbus .69-1.11, 1.6, 2.0 (TCP)
Back Orifice 2000, BO2K(*) (TCP/UDP)
Backdoor.Robofo [Symantec-2007-053013-4425-99]
Stack-based buffer overflow in MDMUtil.dll in MDMTool.exe in MDM Tool before 2.3 in Moxa Device Manager allows remote MDM Gateways to execute arbitrary code via crafted data in a session on TCP port 54321.
References: [CVE-2010-4741]
The Terminal Upgrade Tool in the Pilot Below Deck Equipment (BDE) and OpenPort implementations on Iridium satellite terminals allows remote attackers to execute arbitrary code by uploading new firmware to TCP port 54321.
References: [CVE-2014-0327]
|
SG
|
| 54321 |
udp |
loadavg |
UDP port used by "loadavg" - a service that replies with the load average of a machine. |
SG
|
| 54321 |
tcp |
trojan |
Back Orifice 2000, School Bus , yoyo |
Trojans
|
| 54321 |
tcp,udp |
BackOrifice2000 |
[trojan] Back Orifice 2000 |
SANS
|
| 54321 |
tcp |
SchoolBus |
[trojan] School Bus |
SANS
|
| 54321 |
udp |
bo2k |
Back Orifice 2K Default Port |
Nmap
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| 54321 |
tcp |
threat |
Back Orifice 2000 |
Bekkoame
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| 54321 |
udp |
|
A service that replies with the load average of a machine. |
Bekkoame
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8 records found
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jump to:
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Related ports: 8891 12345 54320 54322 54323 56789 65432
« back to SG Ports
External Resources
SANS ISC: port 54321
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.
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