Yawn

Summary

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Yawn is an Excel macro virus.

Removal

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Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More

More information on scanning and removal options available in your F-Secure product can be found in the Help Center.

You may also refer to the Knowledge Base on the F-Secure Community site for more information.

Contact Support

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Technical Details

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Yawn.A virus consists of 2 modules. The class module 'Class 1' contains a small code that opens Personal.xls from Excel startup directory.

The other module has a random name. This part of the code disables the built-in macro virus protection when a workbook is opened. If the virus was not run from PERSONAL.XLS, it creates this file in Excel Startup directory generating a random module name.

To replicate the virus also export its code in a file 't' in Excel Startup foder.

The virus tries to delete several menus. As an infection marker Yawn.A uses the following commented text in its code:

'taitai  

Variant:Yawn.A

Description:

Yawn.A virus consists of 2 modules. The class module 'Class 1' contains a small code that opens Personal.xls from Excel startup directory. The other module has a random name. This part of the code disables the built-in macro virus protection when a workbook is opened. If the virus was not run from PERSONAL.XLS, it creates this file in Excel Startup directory generating a random module name. To replicates the virus also export its code in a file 't' in Excel Startup foder. The virus tries to delete several menus. As an infection marker Yawn.A uses the following commented text in its code: 'taitai

Description Created: 2006-01-01 08:36:16.0

Description Last Modified: 2006-01-01 00:00:00.0