VBS.Yeno@mm

Risk Level 1: Very Low

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Discovered:: May 31, 2004
Updated:: February 13, 2007 12:23:54 PM
Also Known As:: VBS.Entice [Kaspersky]
Type:: Worm
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

VBS.Yeno@mm is a mass-mailing worm that sends itself to all the email addresses that it finds in the Microsoft Outlook Address Book.

The email has the following characteristics:

Subject: Fw: give some ...
Attachment: Variable file name.

This worm also adds comments to .vbs, .vbe, .htm, and .html files in the root folder of the C drive.

Antivirus Protection Dates

Initial Rapid Release version June 1, 2004
Latest Rapid Release version September 28, 2010 revision 054
Initial Daily Certified version June 1, 2004
Latest Daily Certified version September 28, 2010 revision 036
Initial Weekly Certified release date June 1, 2004

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: Hiroshi Shinotsuka

Technical Details

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Internet Security Threat Report, Volume 16