Who wrote Sobig ...?

Someone sent me again a very interesting document last week.
It's a study about who wrote the Sobig worm which went around the world last year. The study is done by anonymous authors.
The study concludes that author of this worm is a Russian programmer and goes out all the way to name him. Be careful, It could be also a campaign to make someone look bad!
Anyway, this file has now been posted to everybody here .
I'm definitely not the only one who has received this, also F-secure seems to have received this last week...