For a very complete, extensive, in-depth, and (in my honest opinion) thoroughly intriguing explanation of one man's dealings with the VX2 malware and its purveyors, check out this link:

http://www.livejournal.com/users/tacit/125748.html

Really. If you want a look at what is going on with much of the malware with which you deal, this is a good place to start. Having been dealing with various bits of malware for quite some time and quite extensively (and getting paid to do so) before I came across this, not much of it was a surprise to me, but it was still quite interesting. Have a read. Caution: It's a little long. It is well-written, though.