Threat Description



Category: Malware
Type: Worm
Platform: VBS
Aliases: Pica, I-Worm.Lee


VBS/Pica is a worm written in VBScript.


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More scanning & removal options

More information on scanning or removal options is available in the documentation for your F-Secure security product on the Downloads section of our Home - Global site.

You may also refer to the Knowledge Base on the F-Secure Community site for more information.

Contact Support

For further assistance, F-Secure customers can request support online via the Request support or the Chat forms on our Home - Global site.

Technical Details


When executed, the worm copies itself to the Windows System directory as "Ds9.vbs". Then it modifies the registry so that it will be executed each time the system is restarted.

After that the worm will send itself to every recipient in every addressbook using Outlook.

The message that the worm sends looks like this:

  Subject:    Hi check This...     Body:       Hello..your Game is Over..By Q from Lee     Attachment: Ds9.vbs  

After mass mailing, the worm marks the registry so that the mass mailing will not be done again.

Finally, the worm checks if the "mirc.ini" file exists in the mIRC chat client installation directory, and if so, it replaces the "script.ini" with its own. After that the worm will be sent to every user that joins the channel where the infected user is.

The worm contains the following commented line in the top of its code:

  'Worm Created by Ds9 --> Lee  

Technical Details:Katrin Tocheva and Sami Rautiainen, F-Secure


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