When I use Comodo Rating Scan, the next files are mark as unknown.
C:\Program Files\HP\Digital Imaging\bin\hpqsem08.rsc
C:\Program Files\HP\Digital Imaging\bin\hpqstp08.rsc
C:\Program Files\Firetrust\MailWasher\MWPBridgeDLL.dll
C:\Program Files\Firetrust\MailWasher\MWPappDLL.dll
C:\Program Files\COMODO\PC TuneUP\Plugins\Dependencies\cross_platform.dll
When I go to Virus Total those files are all known and trusted (also by Comodo).