W32.HLLW.Backzat

W32.HLLW.Backzat is a worm that uses IRC to distribute itself. This worm attempts to delete security software from your computer. Also, it is written in Microsoft Visual C++ and is packed with UPX.

NOTE: Virus definitions dated prior to April 25, 2003 may detect this threat as W32.Backzat.Worm.

Protection

• Initial Rapid Release version December 26, 2002
• Latest Rapid Release version September 26, 2008 revision 048
• Initial Daily Certified version December 26, 2002
• Latest Daily Certified version January 20, 2009 revision 048
• Initial Weekly Certified release date December 30, 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: Moderate

Damage

• Damage Level: Medium

Distribution

• Distribution Level: Medium