CyberHunter
Local dataset, no network
// Other services

Port 3344: BNT Manager

Port 3344 is assigned by IANA to bnt-manager (BNT Manager).

3344

How bnt-manager works

Other services
client:3344bnt-managerresponse client:3344bnt-managerresponse

The client sends a request to port 3344 and the bnt-manager 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 3344 dangerous?

We have no specific security note for port 3344. 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 3344

ServicePortTransportDescriptionReferenceUpdated
bnt-manager 3344 TCP, UDP BNT Manager - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 3344, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3344'      # process listening on 3344
sudo lsof -nP -i :3344

macOS

sudo lsof -nP -i :3344

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3344 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3344
netstat -ano | findstr :3344

From another machine

nmap -p 3344 -sV <host>
sudo nmap -sU -p 3344 <host>
nc -zv <host> 3344

Block it in the firewall

sudo ufw deny 3344/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3344" -Direction Inbound -LocalPort 3344 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3344 used for?

Port 3344 is assigned by IANA to bnt-manager (BNT Manager).

Is port 3344 TCP or UDP?

Port 3344 is registered for TCP and UDP.

Is it safe to open port 3344?

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 3344 is open?

On Linux run "ss -ltnup 'sport = :3344'", on macOS "lsof -nP -i :3344", and on Windows "netstat -ano | findstr :3344" to see the local process. From another machine, "nmap -p 3344 <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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