1. Symantec/
  2. Security Response/
  3. VBS.Krim.E@mm


Risk Level 1: Very Low

March 4, 2003
February 13, 2007 11:43:43 AM
Also Known As:
VBS/Rimko@MM [McAfee], I-Worm.Krim.a [KAV]
Systems Affected:

VBS.Krim.E@mm is a variant of the VBS.Krim@mm worm. It sends itself to all the contacts in the Microsoft Outlook Address Book. When VBS.Krim.E@mm is run, a file created by the worm (Vbs.vbs) will display a message containing the Web site address, http:/ /www.newmafiamirko.cjb.net.

The email has the following characteristics:

Subject: La tua amica Valentina
Message: Ciao... e da tanto che non ci sentiamo!!! Come stai ??
Attachment: mms.bat

If VBS.Krim.E@mm finds that mIRC is installed on your computer, the worm modifies the mIRC Script.ini file. This modification causes the worm to spread over the IRC network. The worm also attempts to format the C drive by adding a command to the Autoexec.bat file.

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 here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Douglas Knowles

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