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Port 4000 Details
known port assignments and vulnerabilities
threat/application/port search:
| Port(s) |
Protocol |
Service |
Details |
Source |
| 4000 |
tcp,udp |
trojans |
Trojan.Peacomm [Symantec-2007-011917-1403-99] (2007.01.19) - trojan horse that drops a system driver which injects some payload and hidden threads directly into the services.exe process, using a sophisticated technique. Once infected, it opens a backdoor to download other malicious programs. Uses UDP ports 4000, 7871, 11271
Applications: RemoteAnything, Videon Digital Linux DVR (TCP), Abacast (TCP)
Malware: Connect-Back Backdoor, Psyber Streaming Server trojan, Skydance trojan
Games that use this port: Blizzard Battlenet, Diablo II, Command and Conquer Red Alert (UDP), Warcraft II (UDP), Tiberian Sun, Dune 2000 (UDP)
The Festo CECX-X-C1 Modular Master Controller with CoDeSys and CECX-X-M1 Modular Controller with CoDeSys and SoftMotion do not require authentication for connections to certain TCP ports, which allows remote attackers to (1) modify the configuration via a request to the debug service on port 4000 or (2) delete log entries via a request to the log service on port 4001.
References: [CVE-2014-0769]
A vulnerability in multiple ISS products can be exploited to compromise a vulnerable system. The vulnerability is caused due to a boundary error in the PAM (Protocol Analyses Module) component within a routine used for monitoring ICQ server responses. This can be exploited to cause a buffer overflow by sending a specially crafted response packet with a source port of 4000/UDP to the broadcast address of a network with vulnerable systems.
References: [SECUNIA-11073]
OSRAM SYLVANIA Osram Lightify Home before 2016-07-26 allows remote attackers to execute arbitrary commands via TCP port 4000.
References: [CVE-2016-5053], [XFDB-125040]
Moxa EDR-810 is vulnerable to a denial of service, caused by a flaw in the Server Agent functionality. By sending a specially-crafted packet to port 4000, an attacker could exploit this vulnerability to cause the system to crash.
References: [CVE-2017-14438], [XFDB-141667]
Backdoor.Win32.VB.pld / Insecure Transit - the malware listens on TCP port 4000 and has a chat feature "Hnadle-X Pro V1.0 Text Chat". Messages are passed in unencrypted plaintext across the network. Well positioned third-party attackers who can intercept traffic will have the ability to read all communications.
References: [MVID-2021-0247]
The Emerson ROC and FloBoss RTU product lines through 2022-05-02 perform insecure filesystem operations. They utilize the ROC protocol (4000/TCP, 5000/TCP) for communications between a master terminal and RTUs. Opcode 203 of this protocol allows a master terminal to transfer files to and from the flash filesystem and carrying out arbitrary file and directory read, write, and delete operations.
References: [CVE-2022-30264] |
SG
|
| 4000 |
tcp,udp |
|
Diablo II game (unofficial) |
Wikipedia
|
| 4000 |
tcp |
trojan |
Remote Anything, SkyDance |
Trojans
|
| 4000 |
tcp |
Connect-BackBackdoor |
[trojan] Connect-Back Backdoor |
SANS
|
| 4000 |
tcp |
SkyDance |
[trojan] SkyDance |
SANS
|
| 4000 |
tcp,udp |
terabase |
Terabase |
SANS
|
| 4000,6112 |
tcp |
applications |
Blizzard Battlenet |
Portforward
|
| 1234-1237,4000,5400,5009 |
udp |
applications |
Command and Conquer Red Alert |
Portforward
|
| 1234-1237,4000,5400 |
udp |
applications |
Command and Conquer Tiberian Sun |
Portforward
|
| 1234-1237,4000,5400 |
udp |
applications |
Command and Conquer Tiberian Sun Firestorm |
Portforward
|
| 4000,6112 |
tcp |
applications |
DiabloII |
Portforward
|
| 1140-1234,4000 |
tcp,udp |
applications |
Dune 2000 |
Portforward
|
| 4000 |
tcp,udp |
applications |
Eclipse |
Portforward
|
| 3999-4000 |
tcp |
applications |
Remote Anything |
Portforward
|
| 1140-1234,4000 |
tcp,udp |
applications |
Tiberian Sun |
Portforward
|
| 80,1433,4000,11111 |
tcp |
applications |
Video Insight Server |
Portforward
|
| 4000 |
tcp,udp |
applications |
Warp Pipe |
Portforward
|
| 1140,1234,4000 |
tcp |
applications |
Westwood Online |
Portforward
|
| 1234-1237,4000,5009,5400 |
udp |
applications |
Xwis |
Portforward
|
| 4000 |
tcp |
applications |
zbattle.net |
Portforward
|
| 4000 |
tcp |
remoteanything |
neoworx remote-anything slave remote control |
Nmap
|
| 4000 |
udp |
icq |
AOL ICQ instant messaging clent-server communication |
Nmap
|
| 4000 |
tcp |
circlemud |
CircleMUD default server port |
Neophasis
|
| 4000 |
udp |
icq |
ICQ server port |
Neophasis
|
| 4000 |
udp |
threat |
Command and Conquer (UDP) The game "Command and Conquer" by Weswood Studios uses this UDP port. Also uses UDP port 5400. |
Bekkoame
|
| 4000 |
udp |
threat |
ICQ uses this as a control port. |
Bekkoame
|
| 4000 |
udp |
threat |
W32.Witty |
Bekkoame
|
| 4000 |
tcp,udp |
terabase |
Terabase |
IANA
|
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28 records found
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jump to:
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Related ports: 1170 1509 3724 3800 5400 6112 7871 11271
« back to SG Ports
External Resources
SANS Internet Storm Center: port 4000
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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