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Virus.DOS.Caterpillar is a memory resident parasitic virus on DOS.

There are 16 variants.

Behavior

When the virus is in memory, it hooks INT 21h to infect any executable that is run or accessed by DIR or COPY command.

Payload

After the machine has been infected for two months, the virus activates by showing a green caterpillar crawling across the screen, eating the text as it goes and spitting it back out in a different color. The user cannot stop it until reaching the bottom of the screen.

Variants

This family has 16 variants in total:

  • Virus.DOS.Caterpillar.1588
  • Virus.DOS.Caterpillar.1739
  • Virus.DOS.Caterpillar.1783 (A and B)
  • Virus.DOS.Caterpillar.1819
  • Virus.DOS.Caterpillar.a
  • Virus.DOS.Caterpillar.b
  • Virus.DOS.Caterpillar.c
  • Virus.DOS.Caterpillar.e
  • Virus.DOS.Caterpillar.h
  • Virus.DOS.Caterpillar.j
  • Virus.DOS.Caterpillar.n
  • Virus.DOS.Caterpillar.o
  • Virus.DOS.Caterpillar.p
  • Virus.DOS.Caterpillar.q
  • Virus.DOS.Caterpillar.r

Videos

Green Caterpillar DOS Virus (High Quality)02:30

Green Caterpillar DOS Virus (High Quality)

Virus.DOS.Caterpillar.1588 by danooct1

Virus.DOS.Caterpillar02:29

Virus.DOS.Caterpillar.1588

Virus.DOS.Caterpillar.1588 by Alles

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