My property is covered up with them. I've never had one chase me, but I've never had one cornered either. They've always high tailed it in the opposite direction.
http://www.whatsnakeisthat.com/category/region/northeast/west-virginia/
Best guess based on this website, is a black racer. Looks like you only have a couple of venomous snakes in WV and that's a rattle snake and copper head. Definitely doesn't look like those to me.