How can I know if it's a false positive?

In last update CIS detect this file as malware:


but in virus total (a-squared, AntiVir and Kaspersky) don’t detect but NOD32 detect.

also CIMA doesn’t detect.

How can I know if it’s a false positive? ???

Be happy, this isn’t one…

6 antivirusses detect it now. So this is CIS being one of the first :-TU



I think the only way is to submit potential threat to COMODO for analysys, they decide if it’s a malware or not. I could be false positive when file is detected only by one or two AV’s, but also It can be real malware(for example JS:Packed-AB wich was detected only by Avast!). In my opinion submitting is the best way.