According to this, “Trojan.Gen.2.” does not identify a specific virus- it’s simply a generic tag Norton uses to flag a file it believes will behave like a Trojan.
What parameters Norton uses to make this determination and how it classifies these determinations I really don’t know but, from what I understand anyway, the designation “Trojan.Gen.2” is simply one of Norton’s ways of saying “we think this file is acting like a Trojan. We don’t know, but we’ve quarantined the file anyway out of caution”.
For me- because Avast also flagged the program incorrectly- since I trust LBandy and Overhead Games, I simply told Avast to whitelist the program and everything’s been fine.