Khan Worm

The Khan Worm, as the name suggests, is a worm that enters into people's head through their ears or mouth, and controls their actions. Dean says it is like a Khan Worm on steroids, and also refers to it as a "twelve inch long herpe." When possessing people it leaves dark green sludge in it's victims' ears, though it can stop this if it wants. It also spills the same sludge out of its victim's nose when it is injured or in pain.

From its comments, it is likely, that like most monsters, it eats humans.

The second version of the Khan differs from the first in several respects. This variety absorbs all bodily fluids, eventually causing the host to go mad with thirst, drinking any liquids they can find, eventually forcing the host to kill; then in its state of heightened thirst, they will drink the blood from other people. This version of the worm acts more as a parasite, drying out their hosts and moving on. This version appears to have originated in the Middle East, though how long it has existed is unknown. It's also unknown if Eve directly created this version or if it naturally evolved (presumably from the first).

Unlike the first which goes into people's heads, this version enters the stomach, and forcibly introduces itself through its victim's mouth and down their throat.

• Crushing - Though agile, the Khan worm is vulnerable to being crushed easily.
• Extreme Dehydration - A variation of the Khan worm that feeds off hydration can be ousted from a body by not consuming any liquids for a prolonged period and being forced near extreme heat sources.
• Electricity - The Khan Worm can be injured by electricity. Prolonged duration exposure can kill it. It is likely that this is its weakness due to it potentially being connected to its host's brain, an organ which runs primarily off of electrical signals. The other variant seems not to have this weakness or is less vulnerable to it as it didn't leave Cole Trenton when he was repeatedly electrocuted for long periods.