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

This virus has 7 versions:

  • Virus.DOS.AD.132
  • Virus.DOS.AD.157
  • Virus.DOS.AD.173
  • Virus.DOS.AD.206
  • Virus.DOS.AD.243
  • Virus.DOS.AD.436
  • Virus.DOS.AD.437


AD is non-memory resident parasitic virus.

It searches for .COM files in the current directory, then writes itself to the end of the file.

The virus contains the ID-byte ADh.


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