VBS.VBSWG.gen is a generic detection for worms created using the worm generator VBSWG (VBS Worm Generator). A recent worm created by this generator is VBS.SST@mm (AnnaKournikova.jpg.vbs).
There are currently nine known different versions of VBSWG. Norton Antivirus can detect any worm that uses Microsoft Outlook to propagate itself that can be produced by any of the nine generators. The virus writer that wrote the generators also wrote an encryption program for VBS worms. Norton Antivirus will detect any VBS worm encrypted with this program as VBS.VBSWG.gen.
Many of the generated worms will be detected as Bloodhound.VBS.worm
At the time of writing, the argentinian virus writer has removed all generators from his own homepage.
Click for a more detailed description of Rapid Release and Daily Certified virus definitions.