W32.HLLW.Cayam@mm

W32.HLLW.Cayam@mm is a mass-mailing worm that uses Microsoft Outlook to send itself to all the contacts in the Outlook Address Book.

The email has the following characteristics:

Subject: Verify your eBay account information
Attachment: eBayVerify.exe

W32.HLLW.Cayam@mm is also a peer-to-peer worm that shares itself using the eMule and KaZaA file-sharing networks.

This threat is written in Microsoft Visual Basic (VB) and is UPX-packed.

Protection

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

Damage

• Damage Level: Low

Distribution

• Distribution Level: High