TCP/UDP Port Finder

Enter port number (e.g. 21), service (e.g. ssh, ftp) or threat (e.g. nimda)
Database updated - March 30, 2016

Search results for "default"

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Port: 20/TCP
20/TCP - Known port assignments (6 records found)
  • Service
    Details
    Source
  • ftp-data
    File Transfer [Default Data]
    IANA
  •  
    FTP - data transfer (Official)
    WIKI
  • ftp-data
    File Transport Protocol (FTP).
    Apple
  • threat
    [threat] Randex
    Bekkoame
  • sennaspyftpserver
    [trojan] Senna Spy FTP server
    SANS
  • trojan
    [trojan] Amanda. Remote Access / Keylogger / Steals passwords / ICQ trojan. Works on Windows 95 and 98, together with ICQ. Amanda installs under Windows NT, but is not able to run. Aliases: Backdoor.Amanda
    Simovits
Port: 20/UDP
20/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • ftp-data
    File Transfer [Default Data]
    IANA
Port: 46/TCP
46/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • mpm-snd
    MPM [default send]
    IANA
Port: 46/UDP
46/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • mpm-snd
    MPM [default send]
    IANA
Port: 475/TCP
475/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • tcpnethaspsrv
    tcpnethaspsrv
    IANA
  •  
    tcpnethaspsrv (Aladdin Knowledge Systems Hasp services, TCP/IP version) (Official)
    WIKI
  • tcpnethaspsrv
    -
    SANS
  • threat
    [threat] SCO Unizware 7 default installation includes an HTTP server running on this port for the scohelp; service.
    Bekkoame
Port: 1234/TCP
1234/TCP - Known port assignments (10 records found)
  • Service
    Details
    Source
  • search-agent
    Infoseek Search Agent
    IANA
  • hotline
    -
    SANS
  • threat
    [threat] Ultors Trojan
    Bekkoame
  • threat
    [threat] W32.Beagle
    Bekkoame
  • threat
    [threat] The bindshell.c program puts a backdoor root shell on this port by default. This assumes that you've already been compromised by some other exploit and that the hacker uses the default port.
    Bekkoame
  • trojan
    [trojan] Ultors Trojan. Remote Access. Works on Windows 3.1, 95, 98, ME, NT, 2000 and XP. Uses Telnet as the client. Aliases: Ultors Telnet Trojan, Utlor, Backdoor.Ultor
    Simovits
  • subsevenjavaclient
    [trojan] SubSeven Java client
    SANS
  • ultorstrojan
    [trojan] Ultors Trojan
    SANS
  • trojan
    [trojan] KiLo. Remote Access. Works on Windows.
    Simovits
  • threat
    [threat] SubSeven Java client
    Bekkoame
Port: 1234/UDP
1234/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • search-agent
    Infoseek Search Agent
    IANA
  •  
    VLC media player default port for UDP/RTP stream (Official)
    WIKI
  • threat
    [threat] The bindshell.c program puts a backdoor root shell on this port by default. This assumes that you've already been compromised by some other exploit and that the hacker uses the default port.
    Bekkoame
Port: 1236/TCP
1236/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • bvcontrol
    bvcontrol
    IANA
  •  
    Symantec BindView Control UNIX Default port for TCP management server connections (Official)
    WIKI
Port: 1243/TCP
1243/TCP - Known port assignments (13 records found)
  • Service
    Details
    Source
  • serialgateway
    SerialGateway
    IANA
  • threat
    [threat] BackDoor-G
    Bekkoame
  • threat
    [threat] SubSeven
    Bekkoame
  • threat
    [threat] SubSeven Apocalypse
    Bekkoame
  • threat
    [threat] Tiles
    Bekkoame
  • backdoorg
    [trojan] BackDoor-G
    SANS
  • backdoor-g
    [trojan] BackDoor-G
    SANS
  • subsevenapocalypse
    [trojan] SubSeven Apocalypse
    SANS
  • subseven
    [trojan] SubSeven
    SANS
  • tiles
    [trojan] Tiles
    SANS
  • trojan
    [trojan] BackDoor-G. Remote Access. Works on Windows 95 and 98. Aliases: Sub Seven, Sub7
    Simovits
  • trojan
    [trojan] SubSeven. Remote Access / Network trojan / ICQ trojan / IRC trojan. Works on Windows 95, 98 and NT. From version 2.2 beta 2 also on NT, before only on 95 and 98. Version 2.1 can also be controlled via messages over IRC and ICQ. From 2.13 all file names are default names and can be changed. Aliases: Sub 7, BackDoor.G, Pinkworm, SubStealth, BackDoor-G2, Backdoor.SubSeven, .LOG
    Simovits
  • trojan
    [trojan] Tiles. Works on Windows 95 and 98.
    Simovits
Port: 1500/TCP
1500/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • vlsi-lm
    VLSI License Manager
    IANA
  •  
    NetGuard GuardianPro firewall (NT4-based) Remote Management (Unofficial)
    WIKI
  • threat
    [threat] ADSM/Tivoli Storage Manager (backup software) default port
    Bekkoame
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About TCP/UDP ports

TCP port 20 uses the Transmission Control Protocol. TCP is one of the main protocols in TCP/IP networks. TCP is a connection-oriented protocol, it requires handshaking to set up end-to-end communications. Only when a connection is set up user's data can be sent bi-directionally over the connection.
Attention! TCP guarantees delivery of data packets on port 20 in the same order in which they were sent. Guaranteed communication over TCP port 20 is the main difference between TCP and UDP. UDP port 20 would not have guaranteed communication as TCP.
UDP on port 20 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 20 thinks that error checking and correction is not necessary or performed in the application, avoiding the overhead of such processing at the network interface level.
UDP (User Datagram Protocol) is a minimal message-oriented Transport Layer protocol (protocol is documented in IETF RFC 768).
Application examples that often use UDP: voice over IP (VoIP), streaming media and real-time multiplayer games. Many web applications use UDP, e.g. the Domain Name System (DNS), the Routing Information Protocol (RIP), the Dynamic Host Configuration Protocol (DHCP), the Simple Network Management Protocol (SNMP).
TCP vs UDP - TCP: reliable, ordered, heavyweight, streaming; UDP - unreliable, not ordered, lightweight, datagrams.
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