I kill these things on a regular basis. I am lvl 6 Pal. If you get poisoned just keep fighting until you finish off the snake then sit down and wait. They're not nearly as nasty as asps. Those things will kill you if you become poisoned unless you can cure poison or bandage and sit and hope for some good luck.
I killed a couple of them at level five pretty uneventfully. They took me down a few bubbles but I recovered okay. Then at level 6 I ran into a nasty one that conned blue to me and died trying to kill it.
Just thought Id post that I soloed one with my level 4. I had to use LAH though. Pretty exciting to kill something at level 4 solo that would routinely kill my level 7-8 mage and his pet.
This Mob is a preview of rewarding reptile camping to come (Oasis crocs being the next step). They won't agro, but look insanely similar to the much more nasty Asp.