Threat Description

Pikachu

Details

Aliases: Pikachu, Pokey, Pokemon, I-Worm.Pikachu
Category: Malware
Type: Worm
Platform: VB

Summary



The hyped-up 'Pokey' virus doesn't seem to be widespread.

Pikachu is an Internet worm that spreads itself as an executable file attachment using Microsoft Outlook. The worm was written in Visual Basic 6 and it requires VB6 libraries to be present in a system to run.



Removal



Automatic Disinfection

Allow F-Secure Anti-Virus to disinfect the relevant files.

For more general information on disinfection, please see Removal Instructions.



Technical Details



The worm usually arrives in an e-mail message that looks like that:

Subject: Pikachu Pokemon
 Body:
 Great Friend!
 Pikachu from Pokemon Theme have some friendly words to say.
 Visit Pikachu at http://www.pikachu.com
 See you.

The worm is attached to this message as the PIKACHUPOKEMON.EXE file. The file has an icon resembling Pikachu character.

When a user clicks on the attachment, the worm is activated. It shows a dialog with Pikachu image and the following text:

Between millions of people around the world i found you.
 Don't forget to remember this day every time MY FRIEND!
 Visit us at http://www.pikachu.com

The dialog that the worm shows upon activation looks like that:

Then the worm accesses Outlook address book and sends messages with its body attached to everyone in this address book.

The worm has a dangerous payload. It adds several commands to AUTOEXEC.BAT file that will delete \Windows\ and \Windows\System\ folders when a system is restarted. A system asks confirmation to delete files, so if a user doesn't press 'Y', his files are not deleted.





Technical Details: Alexey Podrezov, F-Secure, August 2000


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