WM/Dude is a simple Word macro virus with a destructive payload.
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
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