Wow, set a trap and catch that snake, because there is absolutely nothing on the entire Internet about it, so you can be the one to name a new species.
There are two types of brown snakes. If it's a brown snake in the US, it isn't venomous. If you live in the region in and around Australia, it is.
And looking at it put you in the hospital? Is that like the 25 pound smallmouth I caught once?