This is what i get after extracting the installer downloaded from your official site!
CCleaner.exe
Status : Scanned
Object : %userprofile%\desktop\ccsetup552_slim\ccleaner.exe
MD5 : 1F9EB07F1C292E28C089744D254DE3A2
Publisher : Piriform Software Ltd
Size : 14449664
Version : 5.52.0.6967
Detection : Malware:Win32/Quarand!Atir
Cleaning Action : Quarantine
Related Objects :
File - %userprofile%\desktop\ccsetup552_slim\ccleaner.exe
So is this a f/p?