1. Symantec/
  2. Security Response/
  3. W32.Kifer


Risk Level 1: Very Low

February 10, 2004
February 13, 2007 12:17:12 PM
Also Known As:
TrojanDropper.Win32.Kifer [Kas
Trojan Horse
Systems Affected:

W32.Kifer is a Trojan horse that drops BAT.Snoital@mm, which will attempt to delete antivirus software from your computer. It also spreads through MAPI-enabled email clients, such as Microsoft Outlook, and IRC.

The email has the following characteristics:

Subject: Symantec Security Alert
Attachment: Symantec_W32_Cure.bat

Antivirus Protection Dates

  • Initial Rapid Release version February 10, 2004
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version February 10, 2004
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date February 11, 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Hiroshi Shinotsuka

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STAR Antimalware Protection Technologies
2016 Internet Security Threat Report, Volume 21
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