Sophos has warned users that the W32/Sober-K worm is spreading widely. The worm, which can masquerade as x-rated videos of the society heiress Paris Hilton, is currently the third most commonly encountered virus, amounting to over 17% of all viruses reported to Sophos's global network of monitoring stations in the last 24 hours.
The W32/Sober-K worm bulk mails itself using a variety of different subject lines including "Paris Hilton, pure!" and "Paris Hilton SexVideos". It can send itself in either German or English language, depending on whether it believes the recipient's email address to be owned by a German or English speaker.
Fore more information see: http://www.sophos.com.au/virusinfo/articles/soberk2.html