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Virus.DOS.Zun.837 or Zun is a virus that runs on MS-DOS.

Payload

Zun is a memory resident parasitic virus. It hooks INT 8, 21h and writes itself to the end of COM and EXE files that are executed.

The virus INT 8 handler deletes the current executing file in two hours after the virus starts. The virus contains the text string "Zun".

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