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Port 23 Details
known port assignments
threat/application/port search:
| Port(s) |
Protocol |
Service |
Details |
Source |
| 23 |
tcp |
telnet |
Telnet is one of the oldest Internet protocols and the most popular program for remote access to Unix machines. It has numerous security vulnerabilities.
Trojans that also use this port: ADM worm, Aphex's Remote Packet Sniffer , AutoSpY, ButtMan, Fire HacKer, My Very Own trojan, Pest, RTB 666, Tiny Telnet Server - TTS, Truva Atl, Backdoor.Delf variants, Backdoor.Dagonit (109.26.2005) |
SG |
| 23 |
tcp |
|
Telnet protocol - unencrypted text communications (official) |
Wikipedia |
| 23 |
tcp |
trojan |
ADM worm, Aphex's Remote Packet Sniffer , AutoSpY, ButtMan, Fire HacKer, My Very Own trojan, Pest, RTB 666, Tiny Telnet Server - TTS, Truva Atl |
Trojans |
| 23 |
tcp,udp |
telnet |
Telnet |
IANA |
| 23 |
tcp,udp |
applications |
TELNET |
Portforward |
| 23 |
tcp |
ADMworm |
[trojan] ADM worm |
Neophasis |
| 23 |
tcp |
FireHacKer |
[trojan] Fire HacKer |
Neophasis |
| 23 |
tcp |
MyVeryOwntrojan |
[trojan] My Very Own trojan |
Neophasis |
| 23 |
tcp |
RTB666 |
[trojan] RTB 666 |
Neophasis |
| 23 |
tcp |
TelnetPro |
[trojan] Telnet Pro |
Neophasis |
| 23 |
tcp |
TinyTelnetServer |
[trojan] Tiny Telnet Server - TTS |
Neophasis |
| 23 |
tcp |
TruvaAtl |
[trojan] Truva Atl |
Neophasis |
12 records found
« back to SG Ports
External Resources
SANS Internet Storm Center: port 23
tantalo.net port assignments: port 23
GRC: port 23
Notes:
Well Known Ports: 0 through 1023.
Registered Ports: 1024 through 49151.
Dynamic/Private : 49152 through 65535.
TCP ports use the Transmission Control Protocol. TCP is one of the main protocols in
TCP/IP networks. Whereas the IP protocol deals only with packets, 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 is the key difference between TCP and UDP.
UDP ports use the Datagram Protocol, a communications protocol for the Internet network,
transport, and session layers. Like TCP (Transmission Control Protocol),
UDP is used with IP (the Internet Protocol) and makes possible 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.
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