- Use strong credentials and TLS for signalling.
- Rate-limit registrations to stop extension scanning and toll fraud.
- Alert on unexpected chat protocols leaving servers (possible command and control).
Port 1152: Winpopup LAN Messenger
Port 1152 is assigned by IANA to winpoplanmess (Winpopup LAN Messenger).
1152
How winpoplanmess works
Voice & chatPort 1152 sets up the call (who calls whom), then the voice travels as a stream of audio packets.
- 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
- Voice & chat
Is port 1152 dangerous?
We have no specific security note for port 1152. Its risk depends on the program actually listening on it. General advice for voice & chat services:
IANA registry entries for port 1152
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| winpoplanmess | 1152 | TCP, UDP | Winpopup LAN Messenger | - | 2005-11 |
// source: IANA service name and port number registry
Which program uses port 1152, and is it reachable?
Linux
sudo ss -ltnup 'sport = :1152' # process listening on 1152
sudo lsof -nP -i :1152macOS
sudo lsof -nP -i :1152
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1152 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 1152 netstat -ano | findstr :1152
From another machine
nmap -p 1152 -sV <host> sudo nmap -sU -p 1152 <host> nc -zv <host> 1152
Block it in the firewall
sudo ufw deny 1152/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 1152" -Direction Inbound -LocalPort 1152 -Protocol TCP -Action Block # Windows
What is port 1152 used for?
Port 1152 is assigned by IANA to winpoplanmess (Winpopup LAN Messenger).
Is port 1152 TCP or UDP?
Port 1152 is registered for TCP and UDP.
Is it safe to open port 1152?
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. Use strong credentials and TLS for signalling.
How do I check if port 1152 is open?
On Linux run "ss -ltnup 'sport = :1152'", on macOS "lsof -nP -i :1152", and on Windows "netstat -ano | findstr :1152" to see the local process. From another machine, "nmap -p 1152 <host>" shows whether it is reachable.