Detected Jan 23 1997 20.00 GMT Released Jan 23 1997 20.00 GMT Published Jan 12 2000 13.21 GMT
This is a relatively harmless memory resident parasitic virus. It hooks INT 21h, and writes itself to the end of COM and EXE files that are executed. While installing a memory resident, the virus infects the C:\COMMAND.COM file. During even months (February, April, etc.) on the 4th, 8th, and 12th, the virus also hooks INT 1Ch and plays "The Entertainer" tune. The virus contains the following text strings:
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Virus.DOS.Maca.1000 or Maca is virus that runs on MS-DOS. This virus produces tune of "The...