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.

Protection

  • Initial Rapid Release version September 17, 2003
  • Latest Rapid Release version July 19, 2008 revision 019
  • Initial Daily Certified version September 17, 2003
  • Latest Daily Certified version January 20, 2009 revision 048
  • Initial Weekly Certified release date September 17, 2003

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: Medium

Distribution

  • Distribution Level: High

Writeup By: Jari Kytojoki
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