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


Risk Level 1: Very Low

February 13, 2007 11:34:04 AM

VBS.Winter.B is a Visual Basic Script worm. Like many other worms, it uses Microsoft Outlook, mIRC, and Pirch to spread itself. The worm arrives as the file UndetectedWorm.vbs. Upon execution, the worm attempts to open a connection to a Web site. Any .vbs and .vbe files are overwritten with a copy of the worm.

Antivirus Protection Dates

  • Initial Rapid Release version December 19, 2000
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version December 19, 2000
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date pending
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

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2016 Internet Security Threat Report, Volume 21
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