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3tunes

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Virus.DOS.3tunes.1784 is a memory resident parasitic polymorphic virus on DOS.

Behavior

The virus first infects COMMAND.COM after loading into memory, and then it hooks INT 21h to infect any executable that is run or opener by writing itself to the end of the file.

Not every file would be infected, and it does not infect goat files.

Memory usage

THe exact memory usage is 2,304 bytes.

Payload

When an infected program is run in June, the virus hooks INT 1Ch to play tunes.

Videos

Virus.DOS03:09

Virus.DOS.3tunes

3tunes virus review by Alles Sandro

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