Auto Bunnyhop?

Is there an automatic bunnyhop hack for left 4 dead 2 that is free floating around somewhere? Preferably not having a virus attach to it or anything lol. Anyway yeah, is there one, where you hold down spacebar, or any key it is bound to, to automatically bunnyhop. I've been looking around for ages still no sign, if someone knows of one, it'd be awesome if you'd link me, and any others that want it too.

Thanks (:

I have also been looking for one. I don't think there is one though :\.