As it turns out, this is no alien at all. The creature is actually a hairless -- and unfortunately very sick -- sun bear. They're native to the region.
For reference, here's what a healthy sun bear looks like.
Sun bears are an endangered species in Malaysia. Despite that, they're often killed by locals so that their body parts can be used for various traditional medicine practices. This hairless sun bear is being treated at the wildlife center and is doing well. In time, staffers hope that they'll be able to release her back into the wild.