Today morning, one of our company managers (in the company headquarters) laptop got infected with something called "Total Security 2009" (or something that sounds like that) It is something that pretended to be an anti-virus and refused to let you do anything with the system. And it kept on reporting 'viruses'.
It was impossible to anything with the system. Even booting in Safe mode didn't work. I tried to copy over the trial version of Kaspersky I had onto the system, but I couldn't install it.
Some googling (with another laptop) later, I downloaded HijackThis!, renamed it to "explorer.exe" and somehow killed "Total Security 2009".
After that I managed to install Kaspersky. I did a full system scan before restarting the system. It cleaned it out and my manager is happy.
I had to share this story. Thanks !
