Threat description



This virus contains a lot of bugs but also some quite sophisticated routines like stealth capabilities and debug tricks. The virus may be have escaped from its developer when still in beta.


Automatic action

Depending on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the suspect file, or ask you for a desired action.

More scanning & removal options

More information on the scanning and removal options available in your F-Secure product can be found in the Help Center.

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

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Technical Details

EkoTerror set a lot of conditions and therefore spreads slowly. It infects COM files and hard disk master boot sectors (MBR). It may infect a file more than once.

The virus moves the original MBR and partition table to sector 5 of the hard disk, overwriting the original ones with its own code.

Due to a bug in the virus, most computers do not boot after the MBR has been infected.

The virus contains the following text:

Copyright (C) 1984 BORLAND Inc

This probably means that the virus was compiled with a Borland compiler.

EkoTerror activates on random dates when the computer is booted. It displays the following message at system startup:

 EkoTerror (C) 1991
ATK-toimisto P.Linkola Oy

Kovalevysi on poistettu kaytast. luonnonsuojelun nimessaa

Vihre.ss. yhteiskunnassa ei saa olla ydins.hk.ll. toimivia kovalevyj..

The message is in Finnish and reads:

 EkoTerror (C) 1991
ATK-toimisto P.Linkola Oy

Your hard disk has been disabled for protecting the environment.

There must not be any nuclear powered hard disks in a green society.

While displaying the message, the virus overwrites the first sectors of the hard disk. After overwriting them, it hangs the computer by entering an infinite loop.

EkoTerror was reported to be in the wild in Finland in June 1992.

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