Suspicious Detection by CIS 6

Today I just got a detection from Comodo antivirus saying Suspicious and then a lot of other characters. What I’m wondering is what is a Suspicious detection? Is that detection done by the cloud or local av?

Suspicious@1

This means that your file was previously analysed by automated analysis system like CAMAS.
It has been detected as suspicious+ or suspicious++ and then has been added to local DB with updates.
see here : http://www.comodo.com/home/internet-security/updates/vdp/database.php