/usr/share/applications/ubuntu-system-settings.desktop is in ubuntu-system-settings 0.1+14.04.20140411-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | [Desktop Entry]
Name=System Settings
Icon=system-settings
Exec=system-settings %u
Terminal=false
Type=Application
StartupNotify=true
Categories=System;
Keywords=Preferences;Settings;
X-Screenshot=/usr/share/ubuntu/settings/system/screenshot.png
X-Ubuntu-Gettext-Domain=ubuntu-system-settings
X-Ubuntu-Touch=true
X-Ubuntu-StageHint=SideStage
X-Ubuntu-Single-Instance=true
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