Classification

Category :

Malware

Type :

Virus

Aliases :

Nightfall, N8fall

Summary

This is a very complicated German stealth and polymorphic virus.

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

There are several variants. F-Secure anti-virus products reliably detect and disinfect the 4518 and 4519 variants, and do detect but not disinfect the 5764 and 5765 variants (Dec-1995).

The variants display different message. The smaller ones display this message:

 Invisible and silent - circling overland :
	
\\\ N 8 F A L L /// 	
 Rearranged by Neurobasher - Germany	
-MY-WILL-TO-DESTROY-IS-YOUR-CHANCE-FOR-IMPROVEMENTS-And the larger ones this:"Any means necessary for survival"
 * N8FALL/2XS *

 "By the perception of illusion we experience reality" Art & Strategy by Neurobasher 1994 - Germany
"I don't think that the real violence has even started yet"
 

See: Tremor, Neuroquila, Alphastrike