No, it is simply when Symantec products determine a file has a "low reputation". This is normal for a new file, after all it cannot have a high reputation before it is even being used!
Note that the name has now changed to Heur.AdvML.B.
Symantec's explanation on how this works is here:
Clarification on WS.Reputation.1 detection
A developer's view of this situation:
WS.Reputation.1 or How Symantec ruins independent developers
And another developer view:
How to bypass Symantec’s WS.Reputation.1 System
You can check whether it is indeed a virus by submitting it to the on-line virus submission portals that use tens of virus checkers, e.g.:
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