Another unassignable dynamic port; on Windows it is an RPC endpoint, and its identity is not derivable from the number.
The IANA port registry contains no entry for 49165 because RFC 6335 excludes the entire 49152-65535 range from assignment. Windows takes that range as its default dynamic client and RPC server range, so a listener here is nearly always an RPC interface registered with the endpoint mapper. Anything else listening on 49165 is an application that chose an arbitrary high port, which is legal but means the number tells you nothing about the protocol — you have to fingerprint the service.
Do not expose
Unknown protocol, unknown authentication. Keep it behind the firewall until a service-version scan or the endpoint mapper identifies it.
$ nmap -Pn -sV --version-intensity 9 -p 49165 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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Corrections or a missing port? Reply @rimrocksystems.