Threat Description



Category: Malware
Type: Virus
Platform: W97M
Aliases: Story, Jack-in-the-box


W97M/Story is a Word 97 class infector.


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

Variant:Story.A (IrcJack, W97M_JACK_BOX)

When an infected document is opened, the virus infects the global template. After that it infects all documents that are closed.The virus code contains the following text that the virus uses to check whenever the global template or active document has been infected or not:


When the virus has infected the active document, it saves a copy of it as "C:\Windows\Story.doc". It also checks existence of the mIRC application file, "c:\mirc\mirc32.exe". If the file is found, the virus alters the "mirc.ini" file from the same directory disabling the "Fileserver warning" from "mIRC Options/DCC/Fserve" dialog.The virus also overwrites the existing "script.ini" file with its own, which will cause the following: When a connection is made to any IRC server, there is a 1:8 chance that the script will send a mail to a random anti-virus vendor's support email address containing the following body:

  Jack-In-The-Box Has Popped Up Again!  

As a sidenote, this virus sent over 21,000 messages to our sample submission address during three days in November 1999.The script also sends the "C:\Windows\Story.doc" during the IRC session. The file is sent with either of the following messages:

  Hey, I can't talk right now but I wanted to send you this file.     It has a funny story you should read, and also has macros inside     that protect you from a lot of viruses.  Just open the document,     enable the macros, and if you are infected it will get rid of the     virus     I'm a little busy so I can't talk much now.  I thought you might     want to look at this file I got. It has a funny story and also has     macros in it which get rid of any macro viruses.  Just enable the     macros when the prompt comes up and it will scan for any viruses     and clean them.  

or without the message at all.The macro virus also disables "Tools/Macro", "Tools/Customize", "View/Toolbars" and "View/Status Bar" menus.


W97M/Story.B is a slightly modified variant of W97M/Story.A.

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


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