Threat Description

Fitw

Details

Aliases:ARJ250
Category:Malware
Type:Virus
Platform: W32

Summary



Variants of this virus were uploaded to different Bulletin Board Systems in Slovenia during September 1995 as trojanized versions of ARJ and PKZIP (ARJ250.EXE, PKZ205.EXE).

FITW infects COM and EXE files, boot sectors on both floppies and MBRs on hard drives.



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.



Technical Details



The virus contains an encrypted text "Fart in the wind". The virus activates on certain dates. At this time, it will try to overwrite the hard disk with random data while displaying the following (otherwise encrypted) text. The text is displayed one at a time, displaying a new letter every time a key is pressed. Ctrl-Alt-Del is disabled during overwriting.

 The "FartStorm" coded by Demon Emperor
>Big hello to Cmoskiller & Xorboot<
Are you wild? Hey don't... wait...
let us talk... No? Be off lame
fuckhead!

Due to a bad coding, the text does not always get displayed. Cmoskiller and Xorboot are names of two previous viruses that appeared in Slovenia during 1995.

Fitw is highly polymorphic, and it was the first virus to be really polymorphic in the boot sectors as well.


Variant:Fitw.3794

This is a smaller variant, which only infects COM and EXE files.

It activates on Mondays when the day of the month is 2, 4, 6 or 8.

See: Hare





Technical Details: Dalibor Cerar, ABM d.o.o., dalibor@abm.si


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