XL2000: Q&A About Excel Macro/Laroux Macro Virus (263188)
The information in this article applies to:
This article was previously published under Q263188 SUMMARY
In July 1996, Microsoft learned of a nondestructive macro virus that
affects Microsoft Excel.
MORE INFORMATION
Q: What are macro viruses?
A: Macro viruses are a type of virus that use a program's own macro
programming language to distribute themselves. Unlike previous
viruses, macro viruses do not infect programs; they infect documents.
Q: What is Sofa?
A: This is a nonharmful, nondestructive macro virus that does not affect
data in any way. Infected files display the application header
"Microsofa Excel" instead of "Microsoft Excel."
Q: What is ExcelMacro/Laroux?
A: This is a nonharmful, nondestructive concept virus. It simply appends
a macro sheet called "laroux" to workbooks. It does not affect data
or anything else in the workbook. This is the first replicating macro
virus ever discovered in Microsoft Excel.
Q: What is Laroux B?
A: Laroux B is a variation of the original virus that is the same in all
respects, but can overwrite existing macros on the user's
Personal.xls macro sheet.
| Modification Type: | Major | Last Reviewed: | 9/25/2003 |
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| Keywords: | kbhowto kbProgramming kbualink97 KB263188 |
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