We are having major problems at work with what appears to be some new viruses that haven't made it to the anti-virus software yet. One machine has a fatal system error already - and that has come through our server anti-virus software.
One is
TROY.TINY.AT
and the second is
PAK.Generic001
Another machine's Task Manager has been disabled and if you try to click on any internet links it takes you to list of porn sites!