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 "iana"

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Port: 37/UDP
37/UDP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • time
    Time
    IANA
  •  
    TIME protocol (Official)
    WIKI
  • threat
    [threat] Dimi
    Bekkoame
  • threat
    [threat] W32.Sober
    Bekkoame
Port: 38/TCP
38/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • rap
    Route Access Protocol
    IANA
Port: 38/UDP
38/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • rap
    Route Access Protocol
    IANA
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: 40/TCP
40/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
  • threat
    [threat] Midnight Commander Sometimes access FTP servers running at this port.
    Bekkoame
Port: 40/UDP
40/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
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: 41/UDP
41/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • graphics
    Graphics
    IANA
  • graphics
    -
    SANS
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 37 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 37 in the same order in which they were sent. Guaranteed communication over TCP port 37 is the main difference between TCP and UDP. UDP port 37 would not have guaranteed communication as TCP.
UDP on port 37 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 37 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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