Beware of a new phone scam going around. I've had three different reports in the last week of this scam. Someone will call claiming to be from Microsoft and tell you that your computer is infected with a virus. They ask you to open a web browser and go to a specific website that they have set up. Once there, they can take control of your computer. They will install software that allows them to control your computer even after you leave their web site. Once they have control, they can search your hard drive for financial or identity information.
I've noticed a marked increase in virus activity over the last week. The main virus is a variation of Virus.Win32.Rbot.gen. When a system is infected, it will make changes to the root of any drive letter it sees. All of the folders are marked as system and hidden so that the user with standard Windows settings will no longer see them. It then replicates itself, taking on the names of the folders it just hid and giving itself an icon that looks like a folder icon. The unsuspecting user will click on the virus thinking that he is opening his own folders.