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mov ecx [ecx+eax*4+08] - pointer

 
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aybeyan
How do I cheat?
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Joined: 05 Jan 2010
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PostPosted: Tue Jan 05, 2010 4:20 am    Post subject: mov ecx [ecx+eax*4+08] - pointer Reply with quote

Hi i m trying to figure out finding pointers in multi player game Perfect World. I have no problems in finding regular pointers but today when i was trying to find a pointer ( what accesses this adress ) i got asm code that writes mov ecx [ecx+eax*4+08] something like this. I ve not enough knowledge this kind of thing and any one who has knowledge can please tell me how to do this ? ( english is not my native language sorry for mistakes )
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Xenico
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PostPosted: Tue Jan 05, 2010 5:04 am    Post subject: Reply with quote

mov ecx, [ecx+eax*4+08] just means that the value "ecx+eax*4+08" is copied to the register ecx. If you want to calculate what the value is, click on more informations thingy and look at ecx and eax and write the hex values down. Now just take ecx, add eax multiplied with 4 and add also 08. Thats it.
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aybeyan
How do I cheat?
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PostPosted: Tue Jan 05, 2010 5:38 am    Post subject: Reply with quote

Xenico wrote:
mov ecx, [ecx+eax*4+08] just means that the value "ecx+eax*4+08" is copied to the register ecx. If you want to calculate what the value is, click on more informations thingy and look at ecx and eax and write the hex values down. Now just take ecx, add eax multiplied with 4 and add also 08. Thats it.


i understand but the value of eax always be same ? when i rerun game won t it be change ? ( the value )
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Slugsnack
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PostPosted: Tue Jan 05, 2010 8:35 am    Post subject: Reply with quote

in an example like that. eax tends to be an index into an array. hence the base of the array is likely to be ecx+08.

as to your question if eax changes.. it is more than possible but the best thing to do is test it out and see
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