This is actually something being debated in Australia. Until a few years ago, Dingoes were considered the same species as the regular dog Canis familiaris. Recent DNA studies have shown them to be distinct, however. So now there's Canis dingo. Only, Dingoes can interbreed with the regular dog, which normally is the test for them being the same species. Maybe that makes them a subspecies?
So, yeah - even we don't know what they are. If they were raised by humans, they are happy friendly doggos. If in the wild, then they're dingoes.
Any wild creature bigger than a rat is an animal you should be cautious of. I mean, I wouldn't pet a wild rat, either, but I'm also not afraid one will attack and kill me.
Wild dog packs roam lots of countries in south-east Asia. Don't fucking go near them. They will try to seperate you from other humans and take you down for a snack.
So weird though when you see, like, a golden retriever in their ranks. The urge to go pet them is too strong. I did a lot of catching myself walking towards them when I was in thailand.