Uh..... Arent These Supposed To Be Blue And Good?

i was at ravens cove mines and i was running through killing stuff when i saw this screenshot_2010-11-22_09-46-26.jpg
its a EVIL traitor ghost i mean arent they supposed to be blue and help u like in the quest and it was lvl 46 and i was killing them and they kept poping up and it was very strange