A huge number of PC's are being compromised because they lack the patch for MS08-067. This was one of those out of band patches Microsoft came out with in the 4th quarter of 2008. Patching your Windows PC is so very important. F-Secure, a security research firm has been tracking this over the past week. I'm linking you to a story out of ComputerWorld.com. Click here to read how this botnet is growing super fast.
Might want to check out the patches that are installed on your PC. Make sure that you have MS08-067 installed. Run your Microsoft update to see if you are up to date.
Hope you all are having a great weekend. Stay safe.