When the news was first out that an antivirus firm (f-secure) had cracked the psuedo-random algorithm that the sober worm uses to determine where to download “updates” from, they said that they had previously notified German authorities where the free hosting sites were located so that they could deal with the sites. I did find that they have announced a list of the addresses for the January 5th update (and the January 6th as well.)