It is so old: Software telling you that you are infected and that you have to install this latest security software immediately. You can bet that this then installs malware on your PC instead of cleaning it. We mentioned this problem already in the first chapters of our Security Intelligence Report v7.
And it was to be expected that the success of the Microsoft Security Essentials will be leveraged by criminals as well to do exactly what I just mentioned – it happened last week. Read yourself: If it calls itself “Security Essentials 2010”, then it’s possibly fake, innit?