/usr/share/dbus-1/services/com.Gwibber.Service.service is in gwibber-service 3.4.0-0ubuntu4.
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=com.Gwibber.Service
Exec=/usr/bin/gwibber-service
|