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Port 6776 Details


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Port(s) Protocol Service Details Source
6776 tcp trojans RAT (remote administration tool)

Trojans that use this port: 2000 Cracks, SubSeven/BackDoor-G, VP Killer
SG
6776 tcp trojan 2000 Cracks, BackDoor-G, SubSeven , VP Killer Trojans
6776 tcp 2000Cracks [trojan] 2000 Cracks SANS
6776 tcp BackDoor-G [trojan] BackDoor-G SANS
6776 tcp SubSeven [trojan] SubSeven SANS
6776 tcp VPKiller [trojan] VP Killer SANS
6776 tcp,udp hnmp RAT:SubSeven This port often seen as part of the Sub7 communication. You may see a steady stream of connection attempts: this is because it uses this port separately from the command port in order to transfer information. Sometimes the control-connection thinks the agent is alive, and will continue to attempt this connection as well. Backdoor port in Sub7 Bekkoame
6772-6776 tcp,udp Unassigned IANA
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Related ports: 6796  

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External Resources
SANS ISC: port 6776

Notes:
Port numbers in computer networking represent communication endpoints. 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, the most commonly used protocol on the Internet and any TCP/IP network. 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. Like TCP, UDP is used in combination with IP (the Internet Protocol) and facilitates 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 and realtime gaming, 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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