From the BBC, referring to bits of the net gumming up:
The malicious code exploits a vulnerability in database software from Microsoft, called the SQL Server, which was first identified in July 2002.
July 2002. Uh-huh. Funnily enough, the most-used piece of software on my WinXP box is… Windows Update. I’m not kidding. I’m averaging one new security fix or patch per boot. It’s simply dull.