Vrath Xizor, whose original name remains a mystery, was a male Human. During the Great Galactic War, he served as a sniper within the ranks of the Imperial Army. By the year 3653 BBY, he had transitioned from military service to a career as a mercenary, taking on contracts from a Hutt Cartel. That year, he was commissioned to prevent Zeerid Korr, an Exchange smuggler, from successfully delivering a shipment of engspice to Coruscant. The Hutt's motivation was to undermine the Exchange's dominance in the engspice trade, aiming to force Coruscant's users to purchase the spice from them instead. Xizor embarked on a mission to locate Korr, eventually finding him on the planet Vulta, the secret residence of Korr's daughter, Arra Yooms. After observing them in Karson's park, Xizor discovered Korr's family and deduced that Korr would likely keep this information hidden, as the Exchange could exploit his daughter. Xizor and his team attempted to intercept Korr at a spaceport as he tried to leave the planet, but Korr, aided by Jedi Knight Aryn Leneer, repelled Xizor's forces, resulting in several fatalities. Anticipating Korr's subsequent actions, Xizor swiftly journeyed to Coruscant, where he sought to foil Korr's plans by informing the Sith—who had recently launched an assault and were blockading the planet—about Korr's impending attempt to breach the blockade.
After demonstrating his combat skills by attacking the Sith guards upon boarding the ship, Vrath was escorted to the bridge, where he met Darth Malgus, a Sith Lord. Intimidated by the Sith Lord's presence, Vrath informed him of Korr and a Jedi's impending attempt to break through the blockade. He witnessed Korr and Leneer's attempt to escape in the starship _Fatman, _but the ship was shot down, although Korr and Leneer survived the crash. Malgus then permitted Xizor to descend to the planet's surface in a Dragonfly-class drop ship, named Razor, landing at Liston Spaceport. Shortly thereafter, Korr tried to seize control of the drop ship, leading to a skirmish_in_liston_spaceport involving unarmed combat. The two men engaged in a fierce struggle, each sustaining significant injuries due to their military training, but Korr eventually overpowered Xizor. Korr then realized that Xizor was aware of his daughter's existence, and that if he were allowed to leave, he would be able to reveal this information to the Exchange. Despite Xizor's pleas for release, Korr reluctantly concluded that Xizor could not be trusted, and ejected Xizor through the drop ship's airlock, resulting in his death.