Threat Description

Appder

Details

Aliases: Appder, NTTHNTA, FunYour
Category: Malware
Type:
Platform: W32

Summary


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

WordMacro/Appder consists of three macros. It also contains a destructive activation routine. After 20 infected files, the virus tries to delete the following files:

   C:\DOC\*.EXE      C:\DOC\*.COM      C:\WINDOWS\*.EXE      C:\WINDOWS\SYSTEM\*.TTF      C:\WINDOWS\SYSTEM\*.FOT  

If the virus succeedes, Windows will not boot after this.

WordMacro/Appder contains this text:

Virus - NTTHNTA  

WordMacro/Appder has been reported in the wild during 1997.



Removal


Automatic action

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

More

Detailed instructions for F-Secure security products are available in the documentation found in the Downloads section of our Home - Global site.

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







Description Details: Mikko Hypponen, F-Secure


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