W32.MyPower.B@mm

W32.MyPower.B@mm is a variant of the W32.MyPower@mm worm. It is a mass-mailing worm that sends itself to all contacts that it finds in the Microsoft Windows Address Book. The subject of the email randomly chosen from the following four possibilities

• New, Patch for, Crack For, The Best
• microsoft, Borland, ZDnet
• Tucows, Windows, Program
• Animated, Protection, Saver, Fixed, Saving, Games, 3DFx Studio

The attachment is also randomly chosen from a predetermined list of 8 possibilities, ending in either a .exe or .scr extension.

The worm is written in the Microsoft Visual Basic programming language and is compressed with PE-Pack.

Protection

• Initial Rapid Release version June 25, 2002
• Latest Rapid Release version July 19, 2008 revision 019
• Initial Daily Certified version June 25, 2002
• Latest Daily Certified version January 20, 2009 revision 048
• Initial Weekly Certified release date June 26, 2002

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: Low

Distribution

• Distribution Level: High