Morto

This sounds like a job for the IT department.

New Worm Morto Using RDP To Infect Windows PCs
"A new worm called Morto has begun making the rounds on the Internet, infecting machines via Remote Desktop Protocol. The worm is generating a large amount of outbound RDP traffic on networks that have infected machines, and Morto is capable of compromising both servers and workstations running Windows. Users who have seen Morto infections are reporting in Windows help forums that the worm is infecting machines that are completely patched and are running clean installations of Windows Server 2003."

SlashDot

This is the kind of crap that is difficult to stay ahead of. It also means a reboot of many of our servers at the least.