Threat Description

Sofa

Details

Aliases: Sofa, Microsofa
Category: Malware
Type:
Platform: W32

Summary



This is a Microsoft Excel macro virus. Sofa spreads to Excel spreadsheets once it has copied its virus code to the default startup directory. It does this by creating a file called \MSOFFICE\EXCEL\STARTUP\BOOK.XLT

Sofa contains these macros: Auto_Open, Auto_Range, Current_Open, and Auto_Close.

Sofa activates by checking the title bar text of Excel to read

  Microsofa Excel


Otherwise, the virus just spreads.

Sofa was found in the wild in USA in December 1996.

See: ExcelMacro/Laroux



Removal



Automatic Disinfection

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

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








Description Created: Mikko Hypponen, F-Secure


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