Don’t wait around to install your windows updates this month: Microsoft have released updates to all of its supported operating systems to prevent the intial infection of systems by the Duqu virus/Trojan and its variants.
The Duqu virus is extremely difficult to detect and remove, and is very active in hijacking systems, capturing passwords and banking details etc. It has been in the wild for several months, and this month’s updates include fixes to some of the security flaws that enabled the virus to infect windows systems. I have seen instances where internet banking websites have been unable to be distinguised from fake sites that are capturing login information.
Antivirus software itself is not enough to avoid infection with this virus, and so application of these critical updates is highly recommended.
You can manually update by visiting windowsupdate.microsoft.com in internet explorer. Note that systems already infected may have access to this webpage blocked, and if that is the case, you should investigate the security of your systems further.
As a final warning, these security updates plug the security holes that Duqu exploited in installing itself, they do not remove duqu infections if they have already infiltrated your systems.