The 32-year-old socialite filed a complaint against the operators of ParisHiltonPornVideos.com and has asked for the website to be closed down and to take ownership of the domain name.
According to Perez Hilton, the hotel heiress has gone through the World Intellectual Property Organization Arbitration and Mediation Center, the Mirror reported.
Hilton had filmed the intimate sex scenes in 2001 with her former boyfriend Rick Salomon.
Salomon released it online in 2004 and Hilton sued him for putting it on the internet without her permission.
Spotted: Lara Dutta, Mahesh Bhupathi with their daughter in Bandra
Photos: SRK, Tamannaah Bhatia, Varun Dhawan at Mehboob Studio
Birthday special: Sushant Singh Rajput's journey from TV to films
Photos: Vibrant Sonakshi Sinha opens LFW 2017 on a cruise ship
Health in pictures: 8 reasons why people have unprotected sex