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  3. Downloader.Fostrem


Risk Level 1: Very Low

July 5, 2009
July 6, 2009 7:06:52 AM
Also Known As:
Infection Length:
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP
CVE References:
Downloader.Fostrem is a Trojan horse that exploits the Microsoft Windows 'MPEG2TuneRequest' Object Remote Code Execution Vulnerability in order to download more malware on to the compromised computer.

Note: Virus definitions dated July 5, 2009 or earlier detect this threat as Downloader and Trojan Horse.

Antivirus Protection Dates

  • Initial Rapid Release version July 6, 2009 revision 038
  • Latest Rapid Release version February 19, 2013 revision 016
  • Initial Daily Certified version July 6, 2009 revision 004
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date July 8, 2009
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Kaoru Hayashi

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