/usr/share/kf5/kauth/dbus_service.stub is in libkf5auth-data 5.18.0-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | [D-BUS Service]
Name=@HELPER_ID@
Exec=@KAUTH_HELPER_INSTALL_ABSOLUTE_DIR@/@HELPER_TARGET@
User=@HELPER_USER@
|