Don't name the ones you've noticed or anything to help out others.

Bunch of mods made with the old modkits have antivirus send false positives. It has something to do with the way they go through the launcher or something.
Even Banished itself (and other Steam games that launch a launcher before automatically launching the game itself) is flagged as unsafe and locked from touching the Documents folder by a bunch of antivirus.

Edit: doesn't mean that all mods are 100% safe, there could be some with a virus I suppose.