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Port 81 Details
known port assignments and vulnerabilities
threat/application/port search:
| Port(s) |
Protocol |
Service |
Details |
Source |
| 81 |
udp |
trojans |
W32.Beagle.AR@mm [Symantec-2004-092811-5825-99] (2004.9.28) - mass mailing worm with backdoor functionality on port 81/tcp & udp. Affects all current Windows versions. |
SG
|
| 81 |
tcp |
http |
Hyper Text Transfer Protocol (HTTP) - ports used for web traffic. See also TCP ports 80, 8080, 8081.
Some common uses for port 81/tcp include web administration (cobalt cube), web proxy servers, McAfee Framework Service, TigerVPN (servers speed check), etc.
If you're not running web services on this port, keep in mind it is also used by some trojans:
Backdoor.Asylum [Symantec-2000-121815-0609-99] (2000.05.02) - remote access trojan, uses ports 81, 2343, 23432 by default.
W32.Beagle.AR@mm [Symantec-2004-092811-5825-99] (2004.09.28) - port 81.
Stack-based buffer overflow in the RespondeHTTPPendiente function in the HTTP server for SUMUS 0.2.2 allows remote attackers to execute arbitrary code via a large packet sent to TCP port 81.
References: [CVE-2005-1110]
RemoConChubo trojan and Blue Iris also use this port. |
SG
|
| 81 |
tcp |
|
Torpark - Onion routing (unofficial) |
Wikipedia
|
| 81 |
tcp |
trojan |
Asylum |
Trojans
|
| 81 |
tcp,udp |
hosts2-ns |
HOSTS2 Name Server |
SANS
|
| 81 |
tcp |
RemoConChubo |
[trojan] RemoConChubo |
SANS
|
| 81 |
tcp,udp |
hosts2-ns |
HOSTS2 Name Server |
Nmap
|
| 81 |
tcp |
threat |
W32.Beagle |
Bekkoame
|
| 81 |
tcp |
threat |
Xeory |
Bekkoame
|
| 81 |
udp |
threat |
W32.Beagle |
Bekkoame
|
| 81 |
tcp,udp |
|
Unassigned, modified: 2007-09-06 |
IANA
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11 records found
Related ports: 80 2343 8080 23432
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