CyberHunter
// Other services

Port 6602: Windows WSS Communication Framework

Port 6602 is assigned by IANA to wsscomfrmwk (Windows WSS Communication Framework).

6602

How wsscomfrmwk works

Other services
client:6602wsscomfrmwkresponse client:6602wsscomfrmwkresponse

The client sends a request to port 6602 and the wsscomfrmwk service answers.

Transport
TCP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
01 Security

Is port 6602 dangerous?

We have no specific security note for port 6602. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 6602

ServicePortTransportDescriptionReferenceUpdated
wsscomfrmwk 6602 TCP Windows WSS Communication Framework - 2010-08-10
-6602-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 6602, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6602'      # process listening on 6602
sudo lsof -nP -i :6602

macOS

sudo lsof -nP -i :6602

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6602 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6602
netstat -ano | findstr :6602

From another machine

nmap -p 6602 -sV <host>
nc -zv <host> 6602

Block it in the firewall

sudo ufw deny 6602/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6602" -Direction Inbound -LocalPort 6602 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6602 used for?

Port 6602 is assigned by IANA to wsscomfrmwk (Windows WSS Communication Framework).

Is port 6602 TCP or UDP?

Port 6602 is registered for TCP.

Is it safe to open port 6602?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 6602 is open?

On Linux run "ss -ltnup 'sport = :6602'", on macOS "lsof -nP -i :6602", and on Windows "netstat -ano | findstr :6602" to see the local process. From another machine, "nmap -p 6602 <host>" shows whether it is reachable.

05 Related