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Noclip [help]

 
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GavinInNator
How do I cheat?
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PostPosted: Wed Apr 10, 2013 3:13 pm    Post subject: Noclip [help] Reply with quote

Hey guys. Just recently I found a noclip collision code for one of my favorite games.

The address/code is :

009C0080


However when I nop it - like any other old noclip exploit.

It will work for about 5-10 seconds and then my game will crash. I need help bypassing that. Someone gave me a brilliant idea of finding the anti-exploit and trapping it in a loop. How would I locate it and do that?

Thanks!

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jucce
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PostPosted: Wed Apr 10, 2013 3:52 pm    Post subject: Reply with quote

Are you sure it's an anti-exploit and not just a bug because the character is intersecting with terrain in a bad way?
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Mohsen
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PostPosted: Wed Apr 10, 2013 4:18 pm    Post subject: Reply with quote

NOP's are the evil of cheating..
Maybe try to use some real ASM code ?
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GavinInNator
How do I cheat?
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PostPosted: Wed Apr 10, 2013 4:30 pm    Post subject: Reply with quote

Well if I nop anything it crashes the game. So it's anti exploit..

So can someone give me a quick example of a ASM code to just trap the value into a never ending loop but nop it.. but make it so it doesn't crash my game. I know ASM but I don't get what to do. Confused

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++METHOS
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PostPosted: Wed Apr 10, 2013 8:39 pm    Post subject: Reply with quote

You may check to see if the instruction that you are trying to nop is not accessing any other addresses. To verify if integrity check is being performed, jump to a code cave and inject the original code with some added, custom code that doesn't do anything, then jump back. This way, the code will function properly, but the integrity check will fail.
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GavinInNator
How do I cheat?
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PostPosted: Wed Apr 10, 2013 8:51 pm    Post subject: Reply with quote

I didn't understand any of that..

@the address thingy

no it's not accessing or writing to anything


so..

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PostPosted: Wed Apr 10, 2013 9:08 pm    Post subject: Reply with quote

If, in Memory Viewer, you right-click on the instruction that you want to change (in your case, the instruction that you want to NOP), and select 'find out what addresses this instruction accesses', and only one address shows up in the debugger window while you return to the game and play for a moment, then it may not be the reason that the game is crashing. If there is more than one listing, then your game may be crashing due to the instruction being shared. It is just one of many variables to check to determine the cause of the crash.

To check if the crashing is being caused by an integrity check, you can inject code on the instruction that you want to change by highlighting the instruction, selecting 'tool's at the top, and clicking on 'auto assemble'. In this window, you can select 'template', then click on 'code injection'. After you click okay a couple of times, the window will be populated with text and have something similar to this (your original code will be different):

Code:
newmem: //this is allocated memory, you have read,write,execute access
//place your code here

originalcode:
add [eax],al


Change your code, so that it reads like this:

Code:
newmem: //this is allocated memory, you have read,write,execute access
//place your code here

add [eax],al  //all I did was copy the original code here and add a few nop's and a return jump after it
nop
nop
nop
nop
jmp returnhere

originalcode:
add [eax],al


Click on 'execute' and play the game.

If the game crashes with the simple injection, then your suspicions regarding the integrity check are probably true.
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GavinInNator
How do I cheat?
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PostPosted: Wed Apr 10, 2013 10:35 pm    Post subject: Reply with quote

the game crashed with the code injection..

The game crashed when I found out the insitution thingy.. it gave me like 9 addresses.

now what?

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PostPosted: Wed Apr 10, 2013 10:54 pm    Post subject: Reply with quote

1. Copy your entire script and paste it here.
2. Try using VEH debugger under /Edit/Settings/Debugger Options. After you have made the change, try checking to see what addresses the instruction accesses to see if the game crashes. Report back.
3. Since the instruction accesses multiple addresses, you will most likely not be able to simply nop this instruction to achieve the desired effect.
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Gniarf
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PostPosted: Wed Apr 10, 2013 11:30 pm    Post subject: Re: Noclip [help] Reply with quote

GavinInNator wrote:
Someone gave me a brilliant idea of finding the anti-exploit and trapping it in a loop.
Smells like crysis. If it is indeed crysis, find SteveAndrew's table, he's included a separate integrity check bypasser in his table.

If it's not crysis, I suggest using the stealthedit plugin. As for how to use it, google that up.
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TsTg
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PostPosted: Thu Apr 11, 2013 2:16 am    Post subject: Reply with quote

yes it would be nice to provide the game name Smile
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GavinInNator
How do I cheat?
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PostPosted: Thu Apr 11, 2013 11:41 am    Post subject: Reply with quote

code got patched but I found the new one fairly quick.. btw the game is roblox.. >_>

Sorry but I see people noclipping all the time and I need help. Razz

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