VBS.Sysnom@mm

Risk Level 1: Very Low

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Discovered:: December 23, 2002
Updated:: February 13, 2007 11:55:51 AM
Also Known As:: I-Worm.Sysnom [KAV], VBS/Generic@MM [McAfee]
Type:: Worm
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

VBS.Sysnom@mm is a worm written in Visual Basic Script. It spreads using Microsoft Outlook. When first run, it also attempts to perform a Denial of Service against a virus writer's website.

The email would have the following characteristics:
Subject: Good News
Attachment: SoftwareKey.exe

Antivirus Protection Dates

Initial Rapid Release version December 24, 2002
Latest Rapid Release version September 28, 2010 revision 054
Initial Daily Certified version December 24, 2002
Latest Daily Certified version September 28, 2010 revision 036
Initial Weekly Certified release date December 24, 2002

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: Moderate

Damage

Damage Level: Low

Distribution

Distribution Level: High

Writeup By: Maryl Magee

Technical Details

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Internet Security Threat Report, Volume 16