CyberHunter
// Other services

Port 3458: D3WinOSFI

Port 3458 is assigned by IANA to d3winosfi (D3WinOSFI).

3458

How d3winosfi works

Other services
client:3458d3winosfiresponse client:3458d3winosfiresponse

The client sends a request to port 3458 and the d3winosfi 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)
01 Security

Is port 3458 dangerous?

We have no specific security note for port 3458. 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 3458

ServicePortTransportDescriptionReferenceUpdated
d3winosfi 3458 TCP, UDP D3WinOSFI - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 3458, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3458'      # process listening on 3458
sudo lsof -nP -i :3458

macOS

sudo lsof -nP -i :3458

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3458 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3458
netstat -ano | findstr :3458

From another machine

nmap -p 3458 -sV <host>
sudo nmap -sU -p 3458 <host>
nc -zv <host> 3458

Block it in the firewall

sudo ufw deny 3458/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3458" -Direction Inbound -LocalPort 3458 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3458 used for?

Port 3458 is assigned by IANA to d3winosfi (D3WinOSFI).

Is port 3458 TCP or UDP?

Port 3458 is registered for TCP and UDP.

Is it safe to open port 3458?

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 3458 is open?

On Linux run "ss -ltnup 'sport = :3458'", on macOS "lsof -nP -i :3458", and on Windows "netstat -ano | findstr :3458" to see the local process. From another machine, "nmap -p 3458 <host>" shows whether it is reachable.

05 Related