CyberHunter
Local dataset, no network
// Other services

Port 35006: ReadyTech Helper Service

Port 35006 is assigned by IANA to rt-helper (ReadyTech Helper Service).

35006

How rt-helper works

Other services
client:35006rt-helperresponse client:35006rt-helperresponse

The client sends a request to port 35006 and the rt-helper service answers.

Transport
TCP
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 35006 dangerous?

We have no specific security note for port 35006. 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 35006

ServicePortTransportDescriptionReferenceUpdated
rt-helper 35006 TCP ReadyTech Helper Service - 2013-09-13
-35006-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 35006, and is it reachable?

Linux

sudo ss -ltnup 'sport = :35006'      # process listening on 35006
sudo lsof -nP -i :35006

macOS

sudo lsof -nP -i :35006

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 35006 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 35006
netstat -ano | findstr :35006

From another machine

nmap -p 35006 -sV <host>
nc -zv <host> 35006

Block it in the firewall

sudo ufw deny 35006/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 35006" -Direction Inbound -LocalPort 35006 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 35006 used for?

Port 35006 is assigned by IANA to rt-helper (ReadyTech Helper Service).

Is port 35006 TCP or UDP?

Port 35006 is registered for TCP.

Is it safe to open port 35006?

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 35006 is open?

On Linux run "ss -ltnup 'sport = :35006'", on macOS "lsof -nP -i :35006", and on Windows "netstat -ano | findstr :35006" to see the local process. From another machine, "nmap -p 35006 <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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