WM/Dude is a simple Word macro virus with a destructive payload.
Disinfection & Removal
When an infected document is opened the virus copies itself to the global template. Then it infects every document opened or saved with "File/Save As" menu.
At April 4th the virus activates its payload when a document is opened. It then attempts to format the "C:" drive and displays a message box with the following text:
Its cool DuDe's Birthday!!
The virus also hooks two menu selections. "File/Print" inserts an additional "z" character to the current position of the cursor before printing and "Tools/Macros/Macro" does not do anything.
Technical Details: Sami Rautiainen, F-Secure