Threat Description

Pica

Details

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

Summary



VBS/Pica is a worm written in VBScript.



Removal


Automatic action

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

More

You may wish to refer to the Support Community for further assistance. You also may also refer to General Removal Instructions for a general guide on alternative disinfection actions.



Technical Details




Variant:Pica.A

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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