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Replace with code that does nothing...

 
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oblo
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PostPosted: Mon Jun 04, 2007 4:45 pm    Post subject: Replace with code that does nothing... Reply with quote

...hangs the game I try to cheat. It's a game created with Multimedia Fusion as a standalone aplicattion (I don't know even if it's relevant) and the money var seems to be DMA, so, as the tutorial says:

1) Search the value
2) Find out what write to this address
3) Once found, Add to Codelist
4) Change to "Replace with code that does nothing" hangs the game
5) If I back to "Restore to original code", the games back to life again

What is going on? And most important, How it can be solved?

Thanks in advance
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Labyrnth
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PostPosted: Mon Jun 04, 2007 4:52 pm    Post subject: Reply with quote

Ok you have some good info, But didn't say what game it is.

The is freezing because your are nopping some code it uses to continue game flow.
Now im surprised that it didnt crash the game.

Tell the name of the game and a link if possible where it can be gotten.
You dont have enough posts to post a link so do it like this.

www"dot"game"dot"com
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oblo
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PostPosted: Mon Jun 04, 2007 5:01 pm    Post subject: Reply with quote

sealhunter dot com

(sorry for the notation but forum doesn't allow me to post URLs)

Thanks Smile
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Madman
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PostPosted: Mon Jun 04, 2007 5:07 pm    Post subject: Reply with quote

www.sealhunter.com
edit: lol thats a funny game Laughing

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oblo
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PostPosted: Mon Jun 04, 2007 5:11 pm    Post subject: Reply with quote

yeah Smile but hard as hell -that's why I'm using CE Wink
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Labyrnth
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PostPosted: Mon Jun 04, 2007 5:31 pm    Post subject: Reply with quote

Madman340000

Did you try memhacking it ?
====================

Ok i just tried it, Pretty easy to find address's for this game.
I think you did a bad code injection is all.

* You cant just freeze like cash in this game it will crash when changing levels.
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oblo
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PostPosted: Mon Jun 04, 2007 5:42 pm    Post subject: Reply with quote

Freezing or change value address doesn't work (not for me at last, the game simply ignores both of them) I'm trying to make a code injection but, I don't know what code inject. I've found this:

mov [esi+ecx*4],eax
mov [ecx+esi+6c],dl

I can barely read assembly, so I assume that this code is copying somekind of variables and moving the values onto another addreess.

Any suggestion? Smile

edit: if I change eax or dl with a fix value (f.e. 100 or 500) the game freeze as well
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Labyrnth
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PostPosted: Mon Jun 04, 2007 5:49 pm    Post subject: Reply with quote

Yeah if you tell me what you was hacking, ammo or what Smile

And the freeze does work on ammo i did it 30 seconds ago. Razz
But it is dynamic address so these instructions you are finding is going to be what you need to defeat that.

So far so good, now what are those for?
Screenshots would be good of more info window on each too.
I have the game and will look myself in a bit , But right now i got to look at the forums for a minute.
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oblo
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PostPosted: Mon Jun 04, 2007 5:57 pm    Post subject: Reply with quote

Ammo is working (no wasting time reloading r00lz) Very Happy but the problem is in the money.

As a tip, I can tell you that, when the money address is freeze with a highter value of original money, you can see the same amount being substracting above the head of our "hero".
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Labyrnth
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PostPosted: Mon Jun 04, 2007 5:58 pm    Post subject: Reply with quote

Ill have to play with it to see,... Keep trying stuff. Ill get back.
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Madman
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PostPosted: Mon Jun 04, 2007 5:58 pm    Post subject: Reply with quote

search for the miniguns cost, and change it to 1
buy it
find ammo ammount
PWNAGE.

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Labyrnth
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PostPosted: Mon Jun 04, 2007 5:59 pm    Post subject: Reply with quote

Madman340000 wrote:
search for the miniguns cost, and change it to 1
buy it
find ammo ammount
PWNAGE.


Theres something Smile. GJ MAdman.
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oblo
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PostPosted: Mon Jun 04, 2007 6:05 pm    Post subject: Reply with quote

Madman340000 wrote:
search for the miniguns cost, and change it to 1
buy it
find ammo ammount
PWNAGE.


How can it can be searched? Isn't it a fixed value that doesn't move?

edit: I see... there's only two values Laughing

thanks for the idea! now this is a piece of cake... however, I'd like if you can help me to find how to cheat money so I can learn a bit more about dealing with this type of stuff Wink
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CZ3R0C
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PostPosted: Tue Jun 05, 2007 9:58 am    Post subject: Reply with quote

oblo wrote:

mov [esi+ecx*4],eax
mov [ecx+esi+6c],dl


ecx+esi+6c...

try the value of esi+ecx(calculate the valuse in calc(don't forget to tick the Hex radio button))
esi+ecx == address
6c == Offset

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oblo
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PostPosted: Tue Jun 05, 2007 1:10 pm    Post subject: Reply with quote

CZ3R0C wrote:
oblo wrote:

mov [esi+ecx*4],eax
mov [ecx+esi+6c],dl


ecx+esi+6c...

try the value of esi+ecx(calculate the valuse in calc(don't forget to tick the Hex radio button))
esi+ecx == address
6c == Offset


It seems that first value is the var that "injects" legal money and the second the previous value, so it always does a comprobation... tried what you say, looking for pointers but nothing. I'll review the steps that I've taken -probably a mistake or something

Thanks Smile
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