WM/Swlabs is a very simple Word macro virus.
Disinfection & Removal
When an infected document is opened, the virus infects the global template. After that it infects all opened documents.
Beside replication, the virus will remove "File/Templates" and "Tools/Macros" menu selections.
This variant changes the subject of the document to:
Green Bay Packers -- Super Bowl XXXI Champions
Additionally it infects all documents that are created and saved documents as well.
This variant doesn't do anything beside replicate.
Technical Details: Sami Rautiainen, F-Secure