/usr/share/dbus-1/services/unity-scope-yahoostock.service is in unity-scope-yahoostock 0.1+13.10.20130723-0ubuntu1.
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=com.canonical.Unity.Scope.News.Yahoostock
Exec=/usr/bin/python3 /usr/share/unity-scopes/scope-runner-dbus.py -s news/yahoostock.scope
|