Virus Total results are to be taken in a gross sense. Never fully trusted.
The first day when i downloaded and tested, i also checked it on virustotal... That time it was As pure as water with 0/67
Today i checked my old downloaded file and it shows .... 2/67......... somebody is showing 4 and more.........

This pattern i have seen many times..... After more days .... maybe a month....... you will get much more false +ve on it.
It happens with my own compiled version of ccminer also ...... So what weoihr did ... is the ONLY correct way to check.