Antivirus software is snake oil anyways. Like all filters, it has false positives - I have personally seen McAfee remove its own dll, so it couldn't start any longer - and it even opens up new attack surface. On top of that, it digs so deep into your OS that it can't be removed (after the so called free month). And while they're at it, they upload 'data' to the 'cloud'? No, thanks (old man yells at cloud.jpg).
If you're careful about what you click on and make regular backups (which includes testing), you're pretty much set. Which, by the way, goes for mostly anything. I don't have a driver's license, so I don't handle two tons of steel with however much horse power. I'm no pig, so I don't eat food from the floor. Some people just don't see computers as real things, hence they don't care enough and even coin that stupid expression 'IRL'.
Anyways, back to the question: you could try to ask Symantec why they flagged your exe (I.e. trust them). Or you could trust Androdion or Microsoft or Kaspersky. But, since no one is always right, you can't be sure. Hm, reading that back, I probably wasn't that helpful. Just try it and pick up the pieces if you get hit.