Downloader.Fostrem

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.

Protection

• Initial Rapid Release version July 6, 2009 revision 038
• Latest Rapid Release version October 5, 2009 revision 038
• Initial Daily Certified version July 6, 2009 revision 004
• Latest Daily Certified version October 5, 2009 revision 040
• Initial Weekly Certified release date July 8, 2009

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
• Payload: Downloads more malware on to the compromised computer.

Distribution

• Distribution Level: Low