CyberHunter
Local dataset, no network
// Other services

Port 1607: stt

Port 1607 is assigned by IANA to stt (stt).

1607

How stt works

Other services
client:1607sttresponse client:1607sttresponse

The client sends a request to port 1607 and the stt service answers.

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

Is port 1607 dangerous?

We have no specific security note for port 1607. 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 1607

ServicePortTransportDescriptionReferenceUpdated
stt 1607 TCP, UDP stt - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1607, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1607'      # process listening on 1607
sudo lsof -nP -i :1607

macOS

sudo lsof -nP -i :1607

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1607 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1607
netstat -ano | findstr :1607

From another machine

nmap -p 1607 -sV <host>
sudo nmap -sU -p 1607 <host>
nc -zv <host> 1607

Block it in the firewall

sudo ufw deny 1607/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1607" -Direction Inbound -LocalPort 1607 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1607 used for?

Port 1607 is assigned by IANA to stt (stt).

Is port 1607 TCP or UDP?

Port 1607 is registered for TCP and UDP.

Is it safe to open port 1607?

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 1607 is open?

On Linux run "ss -ltnup 'sport = :1607'", on macOS "lsof -nP -i :1607", and on Windows "netstat -ano | findstr :1607" to see the local process. From another machine, "nmap -p 1607 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

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