1. Symantec/
  2. Security Response/
  3. W32.Zar.A@mm


Risk Level 2: Low

January 18, 2005
February 13, 2007 12:32:03 PM
Also Known As:
Bloodhound.W32.VBWORM, Zar.A [F-Secure], Email-Worm.Win32.Zar.a [Kasper, W32/Zar@MM [McAfee], W32/VBSun-A [Sophos], WORM_ZAR.A [Trend Micro]
Systems Affected:

W32.Zar.A@mm is a mass-mailing worm that uses MAPI to send an email to all addresses in the Microsoft Outlook Address Book. This threat is written in Visual Basic.

Note: Virus definitions dated prior to January 18, 2005 detect this threat as Bloodhound.W32.VBWORM.

Antivirus Protection Dates

  • Initial Rapid Release version January 18, 2005
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version January 18, 2005
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date January 19, 2005
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Asuka Yamamoto

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