/usr/share/dbus-1/services/org.freedesktop.Telepathy.Client.KTp.ConfAuthObserver.service is in kde-telepathy-auth-handler 4:15.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | [D-BUS Service]
Name=org.freedesktop.Telepathy.Client.KTp.ConfAuthObserver
Exec=/usr/lib/x86_64-linux-gnu/libexec/ktp-auth-handler
|