CyberHunter
LinkedIn profile - Bastien Cordier Email: contact@bastiencordier.pro
// Other services

Port 1660: skip-mc-gikreq

Port 1660 is assigned by IANA to skip-mc-gikreq (skip-mc-gikreq).

1660

How skip-mc-gikreq works

Other services
client:1660skip-mc-gikreqresponse client:1660skip-mc-gikreqresponse

The client sends a request to port 1660 and the skip-mc-gikreq 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 1660 dangerous?

We have no specific security note for port 1660. 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 1660

ServicePortTransportDescriptionReferenceUpdated
skip-mc-gikreq 1660 TCP, UDP skip-mc-gikreq - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1660, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1660'      # process listening on 1660
sudo lsof -nP -i :1660

macOS

sudo lsof -nP -i :1660

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1660 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1660
netstat -ano | findstr :1660

From another machine

nmap -p 1660 -sV <host>
sudo nmap -sU -p 1660 <host>
nc -zv <host> 1660

Block it in the firewall

sudo ufw deny 1660/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1660" -Direction Inbound -LocalPort 1660 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1660 used for?

Port 1660 is assigned by IANA to skip-mc-gikreq (skip-mc-gikreq).

Is port 1660 TCP or UDP?

Port 1660 is registered for TCP and UDP.

Is it safe to open port 1660?

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 1660 is open?

On Linux run "ss -ltnup 'sport = :1660'", on macOS "lsof -nP -i :1660", and on Windows "netstat -ano | findstr :1660" to see the local process. From another machine, "nmap -p 1660 <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

Latest vulnerability news

All news