Pricolici

The "Pricolici" is a creature from Romanian legend, that is a type of wolf who can shapeshift. It's abilities include turning into humans and other animals. These things are believe to be undead, or entities that are angry human ghosts in wolf forms. They were once people in life, who did evil and after they died, they rose up from the grave because of unknown dark magic. Then their urges to kill people make them terrifying. They would be ghosts of angry evil people in the shape of wolves, and not appearing as rotten wolf zombies. 

Also it's thought that the people who return as Pricolici were once werewolves in life, but also returning from the grave to continue their horrors with much more fear as they've got paranormal abilities. It's also interesting that the Pricolici are vampiric in nature. It's often them who turn into dogs, bats, humans and owls. 

It must be pointed out that those living in rural pars of Romania have escaped being attacked by large wolves (lone wolves attacking people is more commonly thought to be Pricolici instead of a wild pack of wolves). The single wolves attacking people are believed they are werewolves or Pricolici because it always happens at night, and these loner wolves are very big, larger than average pack of regular wolves. The lone wolves who attack people are also quiet, as they choose a target and stalk them. It's been noted that survivors of these attacks by large loner wolves have described them as more scary than a pack of wolves and there was something supernatural about them.

She Wolf Night