VBS.Downloader.Trojan

Risk Level 1: Very Low

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Discovered:: October 21, 2003
Updated:: February 13, 2007 12:12:27 PM
Type:: Trojan Horse
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP

VBS.Downloader.Trojan is a Trojan Horse that downloads malicious files from Web sites and executes them on the local system.

VBS.Downloader.Trojan is written using the Visual Basic Scripting language (VBS). For VBS scripts to execute, Windows Scripting Host (WSH) is required. WSH is installed by default on most Windows systems. However, it is possible to disable the WSH. Read the instructions on disabling the WSH.

Antivirus Protection Dates

Initial Rapid Release version October 21, 2003
Latest Rapid Release version April 8, 2012 revision 035
Initial Daily Certified version October 21, 2003 revision 002
Latest Daily Certified version April 9, 2012 revision 001
Initial Weekly Certified release date October 23, 2003

Click 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

Distribution

Distribution Level: Low

Writeup By: Neal Hindocha

Technical Details

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Internet Security Threat Report, Volume 16