Lineage.HIT is a worm with characteristics of keylogger that is designed to obtain passwords belonging to online games such as World of Warcraft or Lineage.

Additionally, it downloads an update of itself from a certain website and uses several techniques in order to make its detection more difficult.

Lineage.HIT spreads by making copies of itself in the root directory of the system drives.

Technical details can be found at this Panda Software page.