WM/Swlabs is a very simple Word macro virus.
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
More information on scanning and removal options available in your F-Secure product can be found in the Help Center.
You may also refer to the Knowledge Base on the F-Secure Community site for more information.
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