W32.Zokrim.B@mm

Risk Level 2: Low

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Discovered:: March 4, 2003
Updated:: February 13, 2007 11:43:46 AM
Also Known As:: I-Worm.Zokrim.b [KAV], W32/Zokrim.worm.b [McAfee], Win32.Zokrim.B [CA]
Type:: Worm
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

W32.Zokrim.B@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: La tua amica Morena
Message: Ciao... e da tanto che non ci sentiamo!!! Come stai ??
Attachment: Morena.exe

When W32.Zokrim.B@mm runs, it displays a message: "File not found c:\windows\," and illustrates a .jpg photo, named morena.jpg.

W32.Zokrim.B@mm also attempts to spread using mIRC. This threat is written in the Microsoft Visual Basic programming language.

Antivirus Protection Dates

Initial Rapid Release version March 5, 2003
Latest Rapid Release version September 28, 2010 revision 054
Initial Daily Certified version March 5, 2003
Latest Daily Certified version September 28, 2010 revision 036
Initial Weekly Certified release date March 5, 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: Moderate

Damage

Damage Level: Low

Distribution

Distribution Level: High

Writeup By: Yana Liu

Technical Details

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Internet Security Threat Report, Volume 16