/usr/share/kde4/services/ is in plasma-netbook 4:4.8.5-0ubuntu0.4.
This file is owned by root:root, with mode 0o755.
..
/usr/share/kde4/services/plasma-applet-currentappcontrol.desktop
/usr/share/kde4/services/plasma-applet-searchbox.desktop
/usr/share/kde4/services/plasma-containment-netpanel.desktop
/usr/share/kde4/services/plasma-containment-sal.desktop
/usr/share/kde4/services/plasma-engine-searchlaunch.desktop
/usr/share/kde4/services/plasma-layout-org.kde.plasma-netbook.defaultPage.desktop
/usr/share/kde4/services/plasma-layout-org.kde.plasma-netbook.defaultPanel.desktop
/usr/share/kde4/services/plasma-layout-org.kde.plasma-netbook.defaultSal.desktop
/usr/share/kde4/services/plasma-sal-bookmarks.desktop
/usr/share/kde4/services/plasma-sal-contacts.desktop
/usr/share/kde4/services/plasma-sal-development.desktop
/usr/share/kde4/services/plasma-sal-education.desktop
/usr/share/kde4/services/plasma-sal-games.desktop
/usr/share/kde4/services/plasma-sal-graphics.desktop
/usr/share/kde4/services/plasma-sal-internet.desktop
/usr/share/kde4/services/plasma-sal-multimedia.desktop
/usr/share/kde4/services/plasma-sal-office.desktop
/usr/share/kde4/services/plasma-sal-system.desktop
/usr/share/kde4/services/plasma-sal-utility.desktop