Threat Description

Yawn

Details

Category: Malware
Type: Virus
Platform: W32
Aliases: Yawn

Summary


Yawn is an Excel macro virus.



Removal


Automatic action

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

More scanning & removal options

More information on scanning or removal options is available in the documentation for your F-Secure security product on the Downloads section of our Home - Global site.

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

Contact Support

For further assistance, F-Secure customers can request support online via the Request support or the Chat forms on our Home - Global site.



Technical Details


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


SUBMIT A SAMPLE

Suspect a file or URL was wrongly detected? Submit a sample to our Labs for analysis

Submit Now

Give And Get Advice

Give advice. Get advice. Share the knowledge on our free discussion forum.

Learn More