Port 7789Office Tools Pro Receive

Receive endpoint assigned to Office Tools Pro on TCP and UDP port 7789.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 1/10
lookups: 0

Technical Details

what runs on :7789

Office Tools Pro Receive is registered on port :7789 over tcp and udp to Robert Harvey, assigned January 2006. We don't have a technical write-up for it beyond the IANA registry entry.

In nmap's internet-wide scan data this port is found open rarely. What's listening is often not the registered service, so check before you assume.

IANA has recorded this port being used for something it was not assigned for.

find what's listening on :7789

this machine

# linux
sudo ss -tulpn 'sport = :7789'

# macos / bsd
sudo lsof -nP -i :7789

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :7789

another host

nmap -sV -p T:7789 <host>
sudo nmap -sU -sV -p U:7789 <host>

run it? the handshake, the implementations you meet in the wild and the flags that matter come from the engineers who do.

add technical details

Security Information

exposure of :7789

risk score

1/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp · udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

no security notes recorded for :7789 yet

known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.

Record

iana registry entry

port: :7789
service: Office Tools Pro Receive
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: IANA assigns TCP and UDP port 7789 to the Office Tools Pro Receive service. The assignment is registered to Robert Harvey; the service is rarely observed open on the public Internet.
lookups: 0rank 993
added: 2026-09-14
updated: 2026-09-14
references: IANA service name registry — port 7789

Something wrong?

This record is maintained by the engineers who use port 7789. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-09-14.

01edit any field on a page of its own
02a model checks it for accuracy and spam
03clean and confident goes live immediately

edit this record →back to the registry

Related Ports

browse categories →

ports registered around :7789, by lookups.

port	service	proto	category	risk	views
:7777	iChat Transfer Proxy	TCPtls	File Transfer	caution	18.5k
:7831	Smartlaunch Server	TCP	Network Services	caution	17.7k
:7777	Xivio Chat Server	TCP	Voice and Chat	caution	17.0k
:7777	OCFS2	TCP	Databases	caution	12.5k
:7777	Unreal Tournament Server	UDP	Gaming	caution	11.7k
:7777	Tini Backdoor	TCP	Security	caution	11.6k
:7787	GFI EventsManager	TCP	Security	caution	10.1k
:7777	cbt	TCPUDP	—	safe	0

risk mix of the 8 listed

safe13%
caution88%

1 of 8 encrypted

Port :7789Office Tools Pro Receive

Technical Details

Security Information

Related Ports

Port 7789Office Tools Pro Receive