Registered to a Windows LAN chat application designed for a trusted office network.
IANA lists 1152 as winpoplanmess, "Winpopup LAN Messenger", registered in November 2005. The application is a small Windows messaging tool in the WinPopup lineage, meant for peer-to-peer chat inside one LAN with no expectation of authentication or encryption. It is rare in Nmap's data, and any sighting is confined to Windows desktops running that class of tool.
Do not expose
A LAN chat daemon with no meaningful authentication should never face the internet; keep it on the local segment or replace it.
$ nmap -Pn -p 1152 -sV TARGETSeen this on your network? Beige Box scans your Wi-Fi and shows every open port on every device — and its Ports tool links straight back here.
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