How can you say this is a missed sample as nothing on Virustotal detects anything on that sample.
Is Virus Total the holy grail? Just because none, at this time, detects a thing, does it mean is nothing?

I've been adding reports that some do detect, most do detect, and I got this one that none detect so far. But, it is related to Zeus.
If, among all, avast! also does not detect, then I can assume it misses it?

-Edit-
Or is only suppose to place reports that others do detect, but avast! doesn't yet? If so, then I apologize, as I made confusion.