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 "service"

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Port: 1/TCP
1/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • tcpmux
    TCP Port Service Multiplexer
    IANA
  •  
    TCP Port Service Multiplexer (TCPMUX) (Official)
    WIKI
  • tcpmux
    TCP Port Service Multiplexer [rfc-1078]
    SANS
Port: 1/UDP
1/UDP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • tcpmux
    TCP Port Service Multiplexer
    IANA
  •  
    TCP Port Service Multiplexer (TCPMUX) (Official)
    WIKI
  • threat
    [threat] Sockets des Troie
    Bekkoame
  • socketsdestroie
    [trojan] Sockets des Troie
    SANS
  • trojan
    [trojan] Sockets des Troie. Remote Access / ICQ trojan / Virus. Works on Windows 95 and 98, together with ICQ. Features as telnet and finger. Aliases: Sockets23, Lame, BACKDOOR.KAMIKAZE, IRC_TROJAN, TROJ_BACKDOOR, W32/Cheval.gen , Backdoor.Sockets23, Control Du Sockets, W32.HLLP.DeTroie, DeTroie.drp
    Simovits
Port: 11/TCP
11/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • systat
    Active Users
    IANA
  •  
    Active Users (systat service) (Official)
    WIKI
  • trojan
    [trojan] Skun. Remote Access / Destructive trojan. Works on Windows. Aliases: Backdoor.Skun
    Simovits
Port: 11/UDP
11/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • systat
    Active Users
    IANA
  •  
    Active Users (systat service) (Official)
    WIKI
Port: 15/TCP
15/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  •  
    Unassigned [was netstat]
    IANA
  •  
    Previously netstat service (Unofficial)
    WIKI
  • netstat
    -
    SANS
  • b2
    [trojan] B2
    SANS
Port: 15/UDP
15/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
  •  
    Previously netstat service (Unofficial)
    WIKI
Port: 39/TCP
39/TCP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • rlp
    Resource Location Protocol
    IANA
  •  
    Resource Location Protocol (RLP) - used for determining the location of higher level services from hosts on a network (Official)
    WIKI
  • threat
    [threat] Upfudoor
    Bekkoame
  • subsari
    [trojan] SubSARI
    SANS
  • trojan
    [trojan] SubSARI. Remote Access / Keylogger / Steals passwords / FTP server. Works on Windows 95, 98 and ME. Aliases: Backdoor.SubSARI
    Simovits
Port: 39/UDP
39/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • rlp
    Resource Location Protocol
    IANA
  •  
    Resource Location Protocol (RLP) - used for determining the location of higher level services from hosts on a network (Official)
    WIKI
  • threat
    [threat] Upfudoor
    Bekkoame
Port: 41/TCP
41/TCP - Known port assignments (8 records found)
  • Service
    Details
    Source
  • graphics
    -
    SANS
  • graphics
    Graphics
    IANA
  • threat
    [threat] RAT: Deep Throat Puts an FTP service at port 41 (TCP).
    Bekkoame
  • deepthroat
    [trojan] DeepThroat
    SANS
  • foreplay
    [trojan] Foreplay
    SANS
  • trojan
    [trojan] Deep Throat. Remote Access / FTP server / Steals passwords. Works on Windows 95, 98 and NT. There is a Global Master Password backdoor in all the servers: v 2.0 - whothefuckdoyouthinkiamgoddamnit2v 2.1 - whothefuckdoyouthinkiamgoddamnit1v 3.* - whothefuckdoyouthinkiamgoddamnit3 Aliases: Win32.DeepThroat, DTV2, DTV3, BackDoor.J, Backdoor.DeepThroat, W95/Backdoor.Tray
    Simovits
  • trojan
    [trojan] Foreplay. Remote Access / FTP server. Works on Windows. Aliases: F0replay, WiNNUke eXtreame, Reduced Foreplay
    Simovits
  • threat
    [threat] Foreplay
    Bekkoame
Port: 42/TCP
42/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • nameserver
    Host Name Server
    IANA
  •  
    ARPA Host Name Server Protocol (Official)
    WIKI
  •  
    Windows Internet Name Service (Unofficial)
    WIKI
  • threat
    [threat] W32.Dasher
    Bekkoame
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About TCP/UDP ports

TCP port 1 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 1 in the same order in which they were sent. Guaranteed communication over TCP port 1 is the main difference between TCP and UDP. UDP port 1 would not have guaranteed communication as TCP.
UDP on port 1 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 1 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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