1. Symantec/
  2. Security Response/
  3. VBS.Biscuit.B


September 30, 2003
February 13, 2007 12:08:17 PM
Systems Affected:

VBS.Biscuit.B is a variant of VBS.Biscuit.A@mm, which can spread by network shares.

The worm attempts to copy itself to both the local host and reachable remote network shares. It will copy itself to the root of the network share as Netlog.vbs.
The worm will also copy the original worm's filename to the following folders, if it is able to copy Netlog.vbs to the root of the share:
  • <network share root>\Windows\Menu Avvio\Programmi\Esecuzione automatica
  • <network share root>\Windows\startm~1\programs\startup
  • <network share root>\Windows
  • <network share root>\Windows\start menu\programs\startup
  • <network share root>\Win95\start menu\programs\startup\
On the 10th of every month, VBS.Biscuit.B displays a pop-up message.

Antivirus Protection Dates

  • Initial Rapid Release version October 1, 2003
  • Latest Rapid Release version February 19, 2013 revision 016
  • Initial Daily Certified version October 1, 2003
  • Latest Daily Certified version February 20, 2011 revision 002
  • Initial Weekly Certified release date October 1, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Kevin Ha

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