Quick question, chances of false positive on virustotal scan

[Monkey_Feces]

The file is age3y.exe and the only detection was by webwasher-gateway -Virus.Win32.FileInfector.gen (suspicious).
When only one relatively unknown (at least to me) security app detects a suspicious file, then is it likely a false positive?

Edit: removed virustotal link

[huangker]

Virus total links are not allowed so it will probably removed.

The only product that has detected it is webwasher. This is a gateway product with heuristics turned up on very high so it is very likely that it is a FP.

[Monkey_Feces]

Thanks for the help.