VNCVIEWER.EXE Being detected as Unclassified Malware@829440

I don’t understand why most companies see VNC (especially the viewer part of it) as malware. I’m not trying to be nit picky here however could someone atleast explain to me why

Other vendors tagged this detection as “potentially unwanted app.”, Comodo needs to fine granulate that unclassified thingy…
It can be used for spying, is that enough explanation for you?

Hi scorn,

Can you please check the detection with our latest product and DB versions. Because CIS won’t detect any file with mentioned signature ID. If you are sure with the detection, please attach the particular file.

The latest versions are:
product : 3.9
DB: 1210

Regards,
-Chandra Mohan