PC Pitstop recommends installing the latest (958644) Microsoft security patch now.
On October 22, 2008 - Microsoft released security patches for all versions of Windows. This "out-of-cycle" patch was released in Microsoft Security Bulletin MS08-067 . It's sudden release only serves to emphasize it's importance.
The bulletin warns of a remote code execution attack that can spread rapidly across the internet. Evidence of this RPC attack was first found two weeks ago and infects machines without any user interaction.
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