Port 1604 Details

known port assignments and vulnerabilities
threat/application/port search:
Port(s) Protocol Service Details Source
1604 udp citrix Citrix WinFrame uses port 1604 UDP and port 1494 TCP.
DarkComet RAT (Remote Administration Tool) uses port 1604 (both TCP and UDP) by default.

1604 tcp rat DarkComet RAT (Remote Administration Tool) uses port 1604 (both TCP and UDP) by default.
ICA Browser
1604 udp applications CITRIX Portforward
1604 tcp,udp icabrowser icabrowser IANA
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Related ports: 1494  

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External Resources
SANS Internet Storm Center: port 1604

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.

Please use the "Add Comment" button below to provide additional information or comments about port 1604.
  User Reviews/Comments:
by anonymous - 2011-09-16 16:16
i use port 1604 for a remote administartion tool (RAT) dark commet
by anonymous - 2013-06-19 22:13
I use it for steam updates
by Moon Ahmed - 2013-12-10 11:22
Please Will Somebody tell me how i can active this port :(
by anonymous - 2015-09-30 10:33
by HellsPlan - 2016-09-16 16:46
UCSD is currently scanning the entire net for this port. I just sent off an email to their admin to kindly tell them to piss off.
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