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

Port 3565: M2PA

Port 3565 is assigned by IANA to m2pa (M2PA).

3565

How m2pa works

Other services
client:3565m2paresponse client:3565m2paresponse

The client sends a request to port 3565 and the m2pa service answers.

Transport
TCP · SCTP
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 3565 dangerous?

We have no specific security note for port 3565. 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 3565

ServicePortTransportDescriptionReferenceUpdated
m2pa 3565 TCP, SCTP M2PA RFC 4165 -
-3565-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 3565, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3565'      # process listening on 3565
sudo lsof -nP -i :3565

macOS

sudo lsof -nP -i :3565

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3565 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3565
netstat -ano | findstr :3565

From another machine

nmap -p 3565 -sV <host>
nc -zv <host> 3565

Block it in the firewall

sudo ufw deny 3565/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3565" -Direction Inbound -LocalPort 3565 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3565 used for?

Port 3565 is assigned by IANA to m2pa (M2PA).

Is port 3565 TCP or UDP?

Port 3565 is registered for TCP and SCTP.

Is it safe to open port 3565?

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 3565 is open?

On Linux run "ss -ltnup 'sport = :3565'", on macOS "lsof -nP -i :3565", and on Windows "netstat -ano | findstr :3565" to see the local process. From another machine, "nmap -p 3565 <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