It's not involved around removing "normal" malware and viruses, but around just one particular virus. It's a nasty little bugger that claims to be an antivirus software (AntiVirus 2009, I think) which has found a possibly lethal threat to your computer that needs to be removed.
However, to remove the threat you must visit their site and buy their software... Of course, don't do that because it won't solve anything.
But scanning the PC with "classic" antivirus/antispyware programs also won't do the trick. You need to download Malwarebyte's Anti-Malware (there are other apps, but I like this one the most). If you'd like, you can buy the full version, but the free one will also remove your AntiVirus 2009.
After installation of Malwarebyte's Anti Malware, simply run the scan and remove AV 2009. If you get into trouble with scanning (which you shouldn't), here's a video that explains how to do a quick scan.
And it's as easy as that! Give yourself a good ol' pat on the back, because you deserve it! (Sorry for the cheesy outro, I just remembered Ned Flanders from The Simpsons
















