"As the one year anniversary of the Anti-Virus Reward Program bounty for Sobig approaches, we felt this was an appropriate time to publicly release the current state of our Sobig forensic investigation."
F-Secure's Virus Blog
has posted links to a 48-page study
on who wrote the Sobig worm, which plagued the world with problems last year. Written anonymously, the study concludes that author of this worm is a Russian programmer. I am informed that the programmer is named in the document. The aim of the study is nothing less than the aid to law enforcement "concerning the Sobig authorship and spur efforts toward apprehension of the malware author(s)." You are free to post copies of this document on your own website, provided you do not alter its contents. Exciting stuff.