W32.Vybab@mm

Risk Level 2: Low

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Discovered:: September 16, 2003
Updated:: February 13, 2007 12:07:20 PM
Type:: Worm
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT

W32.Vybab@mm is a simple mass-mailing worm that attempts to use Microsoft Outlook to email itself to all the contacts in the Address Book.

The email has the following characteristics:

Subject: Microsoft Pack3, ;o)
Message: Hi:
This is Microsoft client server center
Check This!

W32.Vybab@mm is written in Borland Delphi.

Antivirus Protection Dates

Initial Rapid Release version September 17, 2003
Latest Rapid Release version September 28, 2010 revision 054
Initial Daily Certified version September 17, 2003
Latest Daily Certified version September 28, 2010 revision 036
Initial Weekly Certified release date September 17, 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: Medium

Distribution

Distribution Level: High

Writeup By: Jari Kytojoki

Technical Details

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Internet Security Threat Report, Volume 16