This threat underlines the need for increasing vigilance when it comes to online security. Not many people realise that one of the most dangerous things a computer user can do is to be online (particularly for long periods) when logged into a computer as an administrator. The average tiime taken for the W.32 Blaster worm to find and infect a new computer in the UK dropped to around 9 seconds today, which is a sobering thought.
Make sure that you are not online with administrator priviledges, and keep up to date with security patches and anti-virus updates. Nothing should be left to chance nowadays.
As someone once famously said: "Something wicked this way comes".