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VBS.Merlin.B@mm

Risk Level 2: Low

Discovered:
July 12, 2001
Updated:
February 13, 2007 11:52:39 AM
Also Known As:
VBS.Eva@mm, VBS.Merlin.A@mm
Type:
Worm

VBS.Merlin.B@mm is mass-mailing worm written in the Visual Basic Scripting (VBS) language. The worm spreads by emailing itself to all contacts in the Microsoft Outlook address book. It can also spread across network drives and by using an IRC client. Its main payload creates 2,500 randomly-named folders in the root of drive C and places a text file in each of these folders. It is able to infect Microsoft Word template files, overwrite .exe files, and delete Windows system files.

Antivirus Protection Dates

  • Initial Rapid Release version July 12, 2001
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version July 12, 2001
  • 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.

Threat Assessment

Wild

  • Wild Level: Low
  • Number of Infections: 0 - 49
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Easy

Damage

  • Damage Level: Low

Distribution

  • Distribution Level: High
Writeup By: Kaoru Hayashi

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