CyberHunter
Local dataset, no network
// Other services

Port 3573: Advantage Group UPS Suite

Port 3573 is assigned by IANA to tag-ups-1 (Advantage Group UPS Suite).

3573

How tag-ups-1 works

Other services
client:3573tag-ups-1response client:3573tag-ups-1response

The client sends a request to port 3573 and the tag-ups-1 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 3573 dangerous?

We have no specific security note for port 3573. 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 3573

ServicePortTransportDescriptionReferenceUpdated
tag-ups-1 3573 TCP, UDP Advantage Group UPS Suite - 2002-08

// source: IANA service name and port number registry

03 Check it

Which program uses port 3573, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3573'      # process listening on 3573
sudo lsof -nP -i :3573

macOS

sudo lsof -nP -i :3573

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3573 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3573
netstat -ano | findstr :3573

From another machine

nmap -p 3573 -sV <host>
sudo nmap -sU -p 3573 <host>
nc -zv <host> 3573

Block it in the firewall

sudo ufw deny 3573/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3573" -Direction Inbound -LocalPort 3573 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3573 used for?

Port 3573 is assigned by IANA to tag-ups-1 (Advantage Group UPS Suite).

Is port 3573 TCP or UDP?

Port 3573 is registered for TCP and UDP.

Is it safe to open port 3573?

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 3573 is open?

On Linux run "ss -ltnup 'sport = :3573'", on macOS "lsof -nP -i :3573", and on Windows "netstat -ano | findstr :3573" to see the local process. From another machine, "nmap -p 3573 <host>" shows whether it is reachable.

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