SONAR "suspicious activity" by ccleaner64.exe?

Okay, what's going on...lol  CCleaner is a known good program.  So, as I'm sitting here minding my own business, why does SONAR feel it is "doing suspicious activity??"  Color me confused.  (All I did was run a LiveUpdate; CCleaner wasn't even open when I got the warning.  Also, I'm using CCleaner Free version 5.24.5841, and as far as I know, it shouldn't even be running in the background.  It isn't set to auto-update.)  Here's the stuff: