The Krath was an organization in the Star Wars series that follows and worships the Dark Side of the Force. The organization stated when a group of aristocrats came together to worship the dark side. The spirit of Freedon Nadd appear to Aleema Keto to usurp the leadership of the cult. Ulic Qel-Droma was corrupted when he tries to infiltrate the cult but became a leader after his fall.
The cult eventually joined Exar Kun and became his servants. They produced droids and troopers to help his fight against the Jedi and the Republic.
The cult dissolved after Exar Kun's defeat.