1. /
  2. Security Response/
  3. W32.Kelvir.BA


Risk Level 2: Low

May 1, 2005
February 13, 2007 12:38:14 PM
Also Known As:
Win32.Kelvir.W [Computer Assoc, IM-Worm.Win32.Kelvir.ao [Kaspe, IM-Worm.Win32.Prex.d [Kaspersk, W32/Kelvir.worm.am [McAfee], WORM_KELVIR.{AP, AT} [Trend Micro]
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP

W32.Kelvir.BA is a worm that attempts to spread W32.Spybot.OFN to all MSN Messenger contacts on the compromised computer through MSN Messenger.

Antivirus Protection Dates

  • Initial Rapid Release version May 1, 2005
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version May 1, 2005
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date May 4, 2005
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Kaoru Hayashi

Search Threats

Search by name
Example: W32.Beagle.AG@mm
STAR Antimalware Protection Technologies
Internet Security Threat Report