How do I remove remote desktop ?

The Remote Desktop Client Update Version 3.8.4 that is being distributed by the Apple App Store has been modified and is not the same version that is included in the Yosemite OS X 10.10.5 installer. Upon running 'Verify Disk Permissions' from Disk Utility, I receive this; "Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent" has been modified and will not be repaired." This "Update" has been distributed by the Apple App Store since March, 2015.

The full installer of Yosemite OS X 10.10.5, released August 14, 2015 installs Remote Desktop Client version 3.8.3, and this file has not been modified. This led me to the question, if the Remote Desktop Client version 3.8.4 is the newest version released by Apple in March, then why is this version not the same version that is included in the Yosemite OS X 10.10.5 released on August 14, 2015? Why do I have to install this version from the App Store after a clean install of Yosemite OS X 10.10.5?

After opening both versions in Console and comparing these files, it is obvious that version 3.8.4 has definitely been very modified and appears to be a hacked file. How did this version get into the Apple App Store? Was this version really released by Apple?

If you have installed version 3.8.4 from the App Store at any time since March 2015 and have only updated your Yosemite OS through the App Store updates then this modified file is in your system.

To uninstall Remote Desktop Client completely from your system follow this path: System/Library/CoreServices/RemoteManagement, select this folder, right click and select "Move to Trash", you will then be asked for your Password.

To remove only the modified file, follow the same path and then continue to /ARDAgent.app, right click on the app and select "Show Package Contents" then continue this path, /Contents/MacOS/ARDAgent, right click on this ARDAgent file, select "Move to Trash" and authorize with your Password.

Then go to Finder > Empty Trash... or better yet, Secure Empty Trash....

I have a persistent notice that Version 3.8.4 is awaiting update even though it has been "updated" several times since early August -- none of these updates seem to have "worked".

OS X 10.10.5 was installed from the App Store on August 15th with no apparent problem.

I don't have any need for the Remote Desktop function on the machine in question (a 5 year old iMac). In fact I can't even seem to find the application on my machine. It sounds like the best bet would be to follow the instructions to remove the client completely?

Two other iMacs of a similar vintage also running 10.10.5 do not seem to have the same issue.

Suggestions / observations appreciated.