Mad
Mad
Type Boot sector virus
Creator
Date Discovered 1988.03.26
Place of Origin
Source Language
Platform Atari ST
Infection Length 1 boot sector
Reported Costs

Mad is the second known virus ever created for the Atari ST computer. It is a boot sector virus, sometimes also called the Fun virus or Emil 2A.

When a disk infected with Mad is booted, the virus becomes memory resident. It copies itself to drives A: or B: whenever they are read or written to. After five infections, the virus makes changes to the contents of the screen and causes the computer to beep.

Sources

Richard Karsmakers. THE KNOWN VIRUSES ON ATARI TOS COMPUTERS AND THEIR SYMPTOMS.

Hallvard Tangeraas. Common viri (sic) on the Atari ST. 1996.02.15

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