Threat Description

Strezz

Details

Aliases: Strezz
Category: Malware
Type: Worm
Platform: W97M

Summary



For more information on Word macro viruses, see WordMacro/Concept.



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 WordMacro/Strezz virus consist of three encrypted macros: AutoOpen, FilePrint and FileSaveAs. Each of them contains the following comments:

Virus  : STREZZ.WinWord
        Author : Dark Love & Lady Love

When the virus infects the global template, it removes the following menus from Word, making it impossible to view the macros of the virus:

File/Templates
        File/---------
        File/Macro
        View/Toolbars
        Tools/Macro
        Tools/Customize
        Format/Style

Strezz activates when files are printed. At this time it removes the Edit/Undo menu and prints the following text before the original document:

STRESS '97
        Special for my love by
        The Free Hackers
        Viroright (C) 1997 Internation Virus Research
        If you have bugs, please call me and don't stress for it!
        I will back laler!

The above extra lines can easily go undetected by the user if he's using a fax driver to fax the document directly from Word.However, after the printing (or faxing) has finished, the virus displays the following text:

You are STREZZ now, I'm sorry for it!
        [IVR] - Internation Virus Research





Technical Details: Peter Szor, F-Secure, 1997


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