Threat Descriptions

Appder

Classification

Category :

Malware

Type :

-

Platform :

-

Aliases :

Appder, NTTHNTA, FunYour

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

Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note: You need administrative rights to change the settings.

Technical Details

N/A