CyberHunter
Local dataset, no network
// Other services

Port 5115: Symantec Autobuild Service

Port 5115 is assigned by IANA to autobuild (Symantec Autobuild Service).

5115

How autobuild works

Other services
client:5115autobuildresponse client:5115autobuildresponse

The client sends a request to port 5115 and the autobuild 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 5115 dangerous?

We have no specific security note for port 5115. 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 5115

ServicePortTransportDescriptionReferenceUpdated
autobuild 5115 TCP Symantec Autobuild Service - 2008-11-17
-5115-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 5115, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5115'      # process listening on 5115
sudo lsof -nP -i :5115

macOS

sudo lsof -nP -i :5115

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5115 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5115
netstat -ano | findstr :5115

From another machine

nmap -p 5115 -sV <host>
nc -zv <host> 5115

Block it in the firewall

sudo ufw deny 5115/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5115" -Direction Inbound -LocalPort 5115 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5115 used for?

Port 5115 is assigned by IANA to autobuild (Symantec Autobuild Service).

Is port 5115 TCP or UDP?

Port 5115 is registered for TCP.

Is it safe to open port 5115?

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 5115 is open?

On Linux run "ss -ltnup 'sport = :5115'", on macOS "lsof -nP -i :5115", and on Windows "netstat -ano | findstr :5115" to see the local process. From another machine, "nmap -p 5115 <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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