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 "bi"

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Port: 53/TCP
53/TCP - Known port assignments (11 records found)
  • Service
    Details
    Source
  • domain
    Domain Name System (DNS). MacDNS, FaceTime
    Apple
  •  
    Domain Name System (DNS) (Official)
    WIKI
  • domain
    Domain Name Server
    IANA
  • threat
    [threat] W32.Dasher
    Bekkoame
  • threat
    [threat] W32.Spybot
    Bekkoame
  • trojan
    [trojan] ADM worm. Worm / Rootkit / Backdoor. Works on Unix (Linux). Affects Linux RedHat 4.0 to 5.2. Aliases: ADM Inet w0rm, Linux.ADM.Worm
    Simovits
  • trojan
    [trojan] li0n. Worm / Steals passwords / Rootkit dropper / Hacking tool / Distributed DoS tool. Works on Unix (Linux), together with BIND 8.2. Aliases: The Lion worm, Linux/Lion, 1i0n, Lion
    Simovits
  • trojan
    [trojan] MscanWorm.
    Simovits
  • trojan
    [trojan] MuSka52. Remote Access / Keylogger / Steals passwords / ICQ trojan / AIM trojan. Works on Windows, together with AOL's Messanger AIM. Aliases: Backdoor.QT, BackDoor.Muska, M52
    Simovits
  • threat
    [threat] Civcat
    Bekkoame
  • threat
    [threat] Esteems
    Bekkoame
Port: 146/TCP
146/TCP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • iso-tp0
    ISO-IP0
    IANA
  • iso-tp0
    -
    SANS
  • threat
    [threat] Infector
    Bekkoame
  • infector
    [trojan] Infector
    SANS
  • trojan
    [trojan] Infector. Keylogger / Steals passwords / ICQ trojan / IRC trojan / Downloading trojan / EXE binder / Trojan dropper. Works on Windows 95, 98 and ME, together with ICQ. Aliases: The Infector, FC Infector, Backdoor.Infector
    Simovits
Port: 146/UDP
146/UDP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • iso-tp0
    ISO-IP0
    IANA
  • iso-tp0
    -
    SANS
  • threat
    [threat] Infector
    Bekkoame
  • infector
    [trojan] Infector
    SANS
  • trojan
    [trojan] Infector. Keylogger / Steals passwords / ICQ trojan / IRC trojan / Downloading trojan / EXE binder / Trojan dropper. Works on Windows 95, 98 and ME, together with ICQ. Aliases: The Infector, FC Infector, Backdoor.Infector
    Simovits
Port: 202/TCP
202/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • at-nbp
    AppleTalk Name Binding
    IANA
  • trojan
    [trojan] One Windows Trojan. Remote Access. Works on Windows.
    Simovits
  • trojan
    [trojan] Skun. Remote Access / Destructive trojan. Works on Windows. Aliases: Backdoor.Skun
    Simovits
Port: 202/UDP
202/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • at-nbp
    AppleTalk Name Binding
    IANA
Port: 512/UDP
512/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • biff
    used by mail system to notify users of new mail received; currently receives messages only from processes on the same machine
    IANA
  •  
    comsat, together with biff (Official)
    WIKI
  • biff
    comsat
    SANS
Port: 777/TCP
777/TCP - Known port assignments (7 records found)
  • Service
    Details
    Source
  • jconfig
    Hummingbird Exceed jconfig
    SANS
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
  • multiling-http
    Multiling HTTP
    IANA
  • trojan
    [trojan] Undetected. Remote Access / Keylogger / Steals passwords / EXE binder. Works on Windows 95, 98 and ME. Aliases: Backdoor.TDS.Muerte, Backdoor.TDS.4F, 4Fuk, Trojan.Win32.TrojanRunner.Levil, TDS, Backdoor.TDS.SE, Un-Detected, U4, Muerter, X-Mas
    Simovits
  • threat
    [threat] NetCrack
    Bekkoame
  • threat
    [threat] AimSpy
    Bekkoame
  • threat
    [threat] Undetected
    Bekkoame
Port: 956/TCP
956/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
  • trojan
    [trojan] Crat Pro. Remote Access / Keylogger / Steals passwords / EXE binder / Destructive trojan. Works on Windows 95, 98, ME, NT, 2000 and XP. Aliases: Backdoor.Cratpro, C.R.A.T., Winload
    Simovits
Port: 1008/TCP
1008/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  •  
    Unassigned
    IANA
  • ipcserver
    Mac OS X RPC-based services. Used by NetInfo, for example.
    Apple
  • trojan
    [trojan] AutoSpY. Anti-protection trojan / Remote Access / Worm / Network trojan / DoS tool / Telnet server / Virus dropper / Prank trojan. Works on Windows 95 and 98, together with MS Outlook. At least on version 1.2 Apocalipse, Telnet can be used as client. Aliases: AntiSpy, Backdoor.AntiSpy, Backdoor.AutoSpy
    Simovits
  • trojan
    [trojan] li0n. Worm / Steals passwords / Rootkit dropper / Hacking tool / Distributed DoS tool. Works on Unix (Linux), together with BIND 8.2. Aliases: The Lion worm, Linux/Lion, 1i0n, Lion
    Simovits
Port: 1031/TCP
1031/TCP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • iad2
    BBN IAD
    IANA
  • trojan
    [trojan] KWM. Remote Access / Keylogger / Steals passwords / Downloading trojan. Works on Windows. Aliases: Backdoor.KWM
    Simovits
  • trojan
    [trojan] Little Witch. Remote Access / Steals passwords / FTP server. Works on Windows. Aliases: Backdoor.LittleWitch, Little Bitch, LW
    Simovits
  • trojan
    [trojan] Xanadu. Remote Access / Keylogger. Works on Windows 95, 98 and ME. The 1.0 server is not compatible with the 1.1 server, as the last version uses UDP instead of TCP. Aliases: Backdoor.Xanadu.11
    Simovits
  • trojan
    [trojan] Xot. Remote Access / IRC trojan. Works on Windows, together with mIRC 5.9 and above. Aliases: Backdoor.Zot
    Simovits
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About TCP/UDP ports

TCP port 53 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 53 in the same order in which they were sent. Guaranteed communication over TCP port 53 is the main difference between TCP and UDP. UDP port 53 would not have guaranteed communication as TCP.
UDP on port 53 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 53 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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