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This article mainly introduces dos how to achieve password cracking, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.

Stack segment

Cache db 10 dup (?)

Stack ends

Code segment

Assume cs:code,ds:code,es:code,ss:stack

Message db 'Made by correy',24h

Email db 0dhpentry 0a, 0a, e, e,.

Notice db 0dh.0h.0h.j.j.cn input password:',24h.

Password db 'correy999'

Main proc

Mov ax, code

Mov ds, ax

Mov es, ax

Mov ax,stack

Mov ss,ax

Mov dx, offset message

Mov ah, 09

Int 21h

Mov dx, offset email

Mov ah, 09

Int 21h

Start:mov dx, offset notice

Mov ah, 09

Int 21h

Mov cx, 9

Mov bx,offset cache

Show:mov ah, 00

Int 16h

Cmp al, 0Dh

Je comp

Mov [bx], al

Inc bx

Mov dl, 2Ah

Mov ah, 02

Int 21h

Loop show

Comp:mov cx, 9

Mov si, offset password

Mov di, offset cache

Repz cmpsb

Jne start

Mov ah, 4Ch

Int 21h

Main endp

Code ends

End main

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