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

This virus has 2 versions:

  • Virus.DOS.Adrenalin.552
  • Virus.DOS.Adrenalin.571





Adrenalin is a dangerous nonmemory resident parasitic virus. It searches for .COM files, then writes itself to the end of the file. The virus leaves the part of code in the system memory, hooks INT 21h, intercepts FindFirst/Next DOS calls, and returns "decreased" lengths of the infected files. In some cases the virus overwrites the files with trojan program. While executing that program erases CMOS and displays the message:

ADRENALIN OVERDOSE error. System dead.


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