All patches can be downloaded from Microsoft(R) Windows Update Site
http://windowsupdate.microsoft.com
You are asking about one patch ,but to be protected from other threats you
need all security updates/patches ,
so click on " Express Install " that would install all critical updates
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Because of the fact you are talking about the patch needed to protect (or
destroy) the Zotob worm,IRC bot,here are some details about it :
http://www.microsoft.com/security/incident/zotob.mspx
To destroy it/them/
1.scan your PC with Microsoft Malicious Removal tool
http://www.microsoft.com/malwareremove
2.scan with updated Antivirus software
3.Download a removal utility from here:
http://www.pandasoftware.com/download/utilities/
Panda_man
"Let's beat malware black and blue"
"No new epidemic of all kind of malware -> Panda TruPrevent"
