The Immortal Rur, also referenced as Eternal Rur, was a non-corporeal artificial intelligence with conscious properties. It was derived from the late male human named Rur and resided within the Rur crystal, which previously functioned as the computer core for the Ordu Aspectu's Citadel of Rur. The archaeologist Doctor Chelli Aphra and her father unearthed Eternal Rur in 0 ABY during the twilight of the Ordu Aspectu.
Chelli Aphra questioned the validity of the statements made by Eternal Rur concerning its identity. The assertion made by the intelligence, which stated that it was the genuine Rur and that Rur's physical form was possessed by an "Evil Ghost," was, in fact, inaccurate. As a result of Rur's attempts to replicate his memories, an intelligence was created that erroneously perceived itself as the original Rur.