Hi. Same happens for me. Got the My Cloud Home (Single) Device five days ago. First 3 days after setting it up, i only saw two folders (“Family” and “Sync from Desktop”).
Since two days new exe-files start to show up like described by Boa.
Any solution for this yet?
PS.: Working on a MacBookPro 2016 / Sierra. Also, if i delete the files, they keep coming back.
I have concluded conversations with WD support. They did not explain what the files were for, just that there would be no harm in deleting them, which I have done with no obvious adverse effects.