CyberHunter
Local dataset, no network
// Other services

Port 16994: Intel(R) AMT Redirection/TCP

Port 16994 is assigned by IANA to amt-redir-tcp (Intel(R) AMT Redirection/TCP).

16994

How amt-redir-tcp works

Other services
client:16994amt-redir-tcpresponse client:16994amt-redir-tcpresponse

The client sends a request to port 16994 and the amt-redir-tcp 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 16994 dangerous?

We have no specific security note for port 16994. 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 16994

ServicePortTransportDescriptionReferenceUpdated
amt-redir-tcp 16994 TCP, UDP Intel(R) AMT Redirection/TCP - 2005-02

// source: IANA service name and port number registry

03 Check it

Which program uses port 16994, and is it reachable?

Linux

sudo ss -ltnup 'sport = :16994'      # process listening on 16994
sudo lsof -nP -i :16994

macOS

sudo lsof -nP -i :16994

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 16994 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 16994
netstat -ano | findstr :16994

From another machine

nmap -p 16994 -sV <host>
sudo nmap -sU -p 16994 <host>
nc -zv <host> 16994

Block it in the firewall

sudo ufw deny 16994/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 16994" -Direction Inbound -LocalPort 16994 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 16994 used for?

Port 16994 is assigned by IANA to amt-redir-tcp (Intel(R) AMT Redirection/TCP).

Is port 16994 TCP or UDP?

Port 16994 is registered for TCP and UDP.

Is it safe to open port 16994?

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 16994 is open?

On Linux run "ss -ltnup 'sport = :16994'", on macOS "lsof -nP -i :16994", and on Windows "netstat -ano | findstr :16994" to see the local process. From another machine, "nmap -p 16994 <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