Summary

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

Additional 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

[Analysis: Peter Szor, F-Secure, 1997]