Pica

Threat description

Details

Category: Malware
Type: Worm
Platform: VBS

Summary

VBS/Pica is a worm written in VBScript.



Removal

Automatic action

Depending on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the suspect file, or ask you for a desired action.

More scanning & removal options

More information on the scanning and removal options available in your F-Secure product can be found in the Help Center.

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

Contact Support

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



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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