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Port 20005 Details

known port assignments and vulnerabilities
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Port(s) Protocol Service Details Source
20005 tcp netusb [CVE-2015-3036] KCodes NetUSB Linux kernel driver is vulnerable to a buffer overflow via the network over TCP port 20005 that may result in a denial of service or code execution. The KCodes NetUSB driver has been integrated into several routers and network products, including Netgear, TP-Link, Trendnet, etc. An unauthenticated attacker on the local network (and a remote attacker with the default configuration on some devices) can trigger a buffer overflow that may result in a denial of service, or code execution. The vulnerability is triggered by simply specifying a machine name longer than 64 characters.

Also: MoSucker trojan (2010)
20005 tcp trojan [trojan] MoSucker Trojans
20005 tcp btx xcept4 (Interacts with German Telekom's CEPT videotext service) SANS
20005 tcp Mosucker [trojan] Mosucker SANS
20005 tcp btx xcept4 (Interacts with German Telekom's CEPT videotext service) Nmap
20005 tcp,udp openwebnet OpenWebNet protocol for electric network, registered 2008-04-09 IANA
20000-20010 udp applications Cal Ripkens Real Baseball Portforward
20000-21000 udp applications Ground Control Portforward
20000-21000 udp applications Ground Control with Chat Rooms Portforward
20000-20019 tcp applications ICQ Portforward
10 records found
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External Resources
SANS Internet Storm Center: port 20005

Port numbers represent communication endpoints in computer networking. Ports are unsigned 16-bit integers (0-65535) that identify a specific process, or network service. IANA is responsible for internet protocol resources, including the registration of commonly used port numbers for well-known internet services.
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 the most commonly used protocol on the Internet and any TCP/IP network. 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/delivery 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. UDP is often used with time-sensitive applications, such as audio/video streaming, where dropping some packets is preferable to waiting for delayed data.

When troubleshooting unknown open ports, it is useful to find exactly what services/processes are listening to them. This can be accomplished in both Windows command prompt and Linux variants using the "netstat -aon" command. We also recommend runnig multiple anti-virus/anti-malware scans to rule out the possibility of active malicious software. For more detailed and personalized help please use our forums.

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