Threat Description

Always.2000

Details

Aliases:Always.2000
Category:Malware
Type:Virus
Platform: W32

Summary



This virus is a polymorphic virus infecting COM and EXE files when they are executed.

Always virus activates on random dates during 1997. When it activates, the virus deletes these system files, making the PC unbootable:

C:\IO.SYS
C:\MSDOS.SYS
C:\CONFIG.SYS

After this, the virus displays this message:

  DOS/4GW Professional Protected Mode Run-time  Version 1.95
  Copyright (c) Rational Systems, Inc. 1990-1993
  Getto Virus  Version 1.0b  Copyright (C) 1995,96 by Geci Allat
  This Getto requirest 80286 or better processor
  Formating Hard Disk #1 [...................]
  Formating Hard Disk #2 [...................]
  Ready.
  gEtTo  Always the Best!  MS-SUX Destroyer

However, the virus does not format any drives. It is possible to recover the drive by booting from a non-infected system disk with the same version of DOS or Windows as on hard drive and using SYS C: from it.

The virus also contains this text, which is never displayed:

  Tested with F-Prot v2.22 and TBAV700

Always was reported to be in the wild in Hungary in December 1996.



Removal


Automatic action

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

More

You may wish to refer to the Support Community for further assistance. You also may also refer to General Removal Instructions for a general guide on alternative disinfection actions.








Description Created: Analysis: Peter Szor, F-Secure 1997


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