Today Microsoft released Security Advisory 2639568 to provide customer guidance for the Windows kernel issue related to the Duqu malware.
The security advisory provides a workaround that can be applied to any Windows system. To make it easy for customers to install, Microsoft has released a Fix it that will allow one-click installation of the workaround and an easy way for enterprises to deploy.
To further protect customers, Microsoft provided its partners in the Microsoft Active Protections Program (MAPP) detailed information on how to build detection for their security products. This means that within hours, anti-malware firms will roll out new signatures that detect and block attempts to exploit this vulnerability. Therefore Microsoft encourages customers to ensure their antivirus software is up-to-date.
Additionally, the engineering teams determined the root cause of this vulnerability, and they are working to produce a high-quality security update to address it. At this time, Microsoft plans to release the security update through our security bulletin process, although it will not be ready for this month’s bulletin release.