Body Worm.

Description from original post (created 2011-10-08 05:34):

Made this for the Halloween skin contest. Best of luck to all who enter.

The body worm is an alien type creature that attaches itself to the body with its claws then burrows itself up through the neck and into the brain to control its victim. It then bursts out of the eye canal for wrapping itself around the head to have better vision.