Int 21 Fn 3000  - Virus - "jackal" - Installation Check                    [v]

   AX = 3000h
   BX = 614Ah ('aJ')
   CX = 6B63h ('kc')
   DX = 6C61h ('la')

Return: BX = ???

See Also: AX=2C2Ch"VIRUS",AX=3030h"VIRUS"