Threat Description

Maltese Amoeba

Details

Aliases: Maltese Amoeba, Irish
Category: Malware
Type: Virus
Platform: W32

Summary



Maltese Amoeba was originally written in Malta, but, strangely enough, it was first found in late 1991 in Ireland - which means that the virus was able to spread from another side of the world to another unnoticed.



Removal



Automatic Disinfection

Allow F-Secure Anti-Virus to disinfect the relevant files.

For more general information on disinfection, please see Removal Instructions.



Technical Details



Maltese Amoeba is a resident virus which infects COM- and EXE-files. Infected files grow by 2504 to 2564 bytes. The time and date stamps of the files will not change.

Maltese Amoeba will activate on 15th of March and on 1st of November. At this time it will overwrite the first sectors on both floppy and hard drives. After that it will leave the following message flashing to the screen and hangs the machine:

To see a world in a grain of sand,
        And a heaven in a flower
        Hold infinity in the palm of your hand
        And eternity in an hour.
        THE VIRUS 16/3/91
		
		

The virus contains also another message, which is never shown:

AMOEBA virus by the Hacker Twins (C) 1991
      This is nothing, wait for the release of AMOEBA II-The universal
      infector, hidden to any eye but ours! Dedicated to the University
      of Malta-the worst educational system in the universe, and the
      destroyer of 5X2 years of human life.
	  
	  		

These texts cannot be seen by looking at the virus code. The virus uses polymorphic encryption, trying to make itself unscannable.





Description Created: Mikko Hypponen, F-Secure


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