Int 21 Fn 54  - Virus - "dual_gtm"/"ganeu" - Installation Check            [v]

   AH = 54h
   BX = 4475h ("Du")
   CX = 616Ch ("al")

Return: BX = 4774h ("Gt") and CX = 4D21h ("M!") if resident

See Also: AX=50FDh"VIRUS",AX=5454h"VIRUS"