The Jiangshi is a Chinese mythological undead creature, similar and roughly equivalent to the Western Vampires. Traditionally, they are rigid, reanimated corpses which move primarily by hopping and seek living victims to drain them of their qi, or life force (rather than blood). In some stories, a person attacked by a Jiangshi is infected with the same curse and prone to becoming a Jiangshi as well. They're sometimes depicted with pale, greenish-white skin.
Early stories about Jiangshi provide a possible origin for them, concerning people who had died far from home and whose impoverished relatives couldn't afford to transport the body to a more convenient burial site, so instead, they hired Taoist sorcerers to enchant the corpse, bringing it back to life and teaching it to find its way home.