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

Port 7933: Tier 2 Business Rules Manager

Port 7933 is assigned by IANA to t2-brm (Tier 2 Business Rules Manager).

7933

How t2-brm works

Other services
client:7933t2-brmresponse client:7933t2-brmresponse

The client sends a request to port 7933 and the t2-brm 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 7933 dangerous?

We have no specific security note for port 7933. 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 7933

ServicePortTransportDescriptionReferenceUpdated
t2-brm 7933 TCP, UDP Tier 2 Business Rules Manager - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 7933, and is it reachable?

Linux

sudo ss -ltnup 'sport = :7933'      # process listening on 7933
sudo lsof -nP -i :7933

macOS

sudo lsof -nP -i :7933

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 7933 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 7933
netstat -ano | findstr :7933

From another machine

nmap -p 7933 -sV <host>
sudo nmap -sU -p 7933 <host>
nc -zv <host> 7933

Block it in the firewall

sudo ufw deny 7933/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 7933" -Direction Inbound -LocalPort 7933 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 7933 used for?

Port 7933 is assigned by IANA to t2-brm (Tier 2 Business Rules Manager).

Is port 7933 TCP or UDP?

Port 7933 is registered for TCP and UDP.

Is it safe to open port 7933?

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 7933 is open?

On Linux run "ss -ltnup 'sport = :7933'", on macOS "lsof -nP -i :7933", and on Windows "netstat -ano | findstr :7933" to see the local process. From another machine, "nmap -p 7933 <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