/usr/share/dbus-1/services/org.laptop.Sugar.Presence.service is in sugar-presence-service 0.90.2-5.
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.laptop.Sugar.Presence
Exec = /usr/bin/sugar-presence-service
|