Threat Description



Category: Malware
Type: Worm
Platform: VBS
Aliases: Godzilla, VBS/Godzilla.A@m, I-Worm.Godzilla


Godzilla is a slow mass mailing worm. It activates in a similar way as JS/Kak, by reading an infected email message.


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


Godzilla.A uses Outlook Express 5.0 to spread as HTML source in each email from infected machine. To do this it saves its code in Update.hta in Windows Startup folder:


so it will be executed next time when the system is restarted.

The virus also saves itself in C:\Windows folder in a file Sign.html. By modifying the Windows registry:


it changes Outlook Express signature to use Sign.html. On that way the worm code will be embedded in each outgoing email message.

If the date is October 10th, VBS/Godzilla.A shows a message box with a the following text:

Have you danced with the devil in the moonlight ?  

VBS/Godzilla.A@m also contains the following comment on the top of its code:

I-Worm.Godzilla Coded by Zorro  

Technical Details:Katrin Tocheva; F-Secure Corp.; August 21st, 2002


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