Are werewolves satanic creatures

Not directly. Werewolves in literature usually symbolize the wild side of human nature. A werewolf is a person who is a slave to their animal instincts and does not or cannot follow the usual rules of human society.

Many movies use werewolves to symbolize puberty as the change into the wolf form can be seen as a metaphor for the changes that happen to your body as you mature. For this reason werewolves can also be associated with sex or lust.