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Having trouble with pointers

 
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BloodDrag0n
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PostPosted: Mon Jun 16, 2014 8:58 pm    Post subject: Having trouble with pointers Reply with quote

Hi guys, I'm currently trying to find a base address for The Stomping Land but when trying to "find out what writes to this address" or "find out what accesses this address", I receive the same dynamic address that I already have. It seems that the problem is that I'm receiving a negative offset. Does anybody know how I can work around this?

When trying to find what writes to the address of 342DB8D8, I receive:
Code:
003B8621 - 88 44 2F FF  - mov [edi+ebp-01],al


Code:
The value of the pointer needed to find this address is probably 342DB8D8


However, this is the original dynamic address, not the static address.

Is there any way to work around the negative [edi+ebp-01] so that I can receive a positive offset and find the static address?



I would really appreciate assistance with this as this is puzzling me. I can normally find the static address for most things with no problem, but when it comes to negative offsets, I have no idea what to do and most tutorials I have read don't seem to work.

I look forward to hearing back from someone.

Regards, BloodDrag0n Smile[/code]
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Dark Byte
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PostPosted: Tue Jun 17, 2014 4:30 am    Post subject: Reply with quote

so EBP has the value 1 ?

anyhow, this is normal if the offset is 0. It's nothing special. (1000+0=1000 )
So, do a 4 byte scan for 342DB8D8 and continue from there

It is possible that EDI get's it's value changed by another instruction before (e.g an add edi,8d8) so I do recommend checking the assembler code of the function that code is in (the task is to find the offset of the address you're inspecting)

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BloodDrag0n
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PostPosted: Tue Jun 17, 2014 5:21 am    Post subject: Reply with quote

Actually EBP has the value of -01 and that's why I can't find the offset. Not sure if 01 is the same as 1000, I'm still learning.

I've tried searching for 342DB8D8 but it returns with no results as it's the dynamic address that I originally had.

I also tried searching through EDI which was EDI=00000002, but I can't find much as I'm not sure exactly where to look. I did a hex scan of 00000002 and it returned the result of my dynamic address which was 342DB8D8. I then browsed the memory region to attempt to search for an offset but was left quite puzzled. Did I do something wrong? I also tried finding what writes to that address but it returns with the same results.

Thank you for taking the time to help me with this, I really appreciate it.

Hope to hear back from you soon, regards - BloodDrag0n
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BloodDrag0n
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PostPosted: Thu Jun 19, 2014 12:38 pm    Post subject: Reply with quote

Any ideas?
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BloodDrag0n
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PostPosted: Sat Jun 21, 2014 5:07 pm    Post subject: Reply with quote

Okay I guess not. I'll look elsewhere for help, this doesn't seem to be the right place.
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godsblight
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PostPosted: Sat Jun 28, 2014 4:03 am    Post subject: Reply with quote

Having the same problem as the OP. Found dynamic address as no base addresses could be found for this and did a what writes search, found 1 result that points at the original dynamic address. When searching for that dynamic address it brings no results. I have searched the forms for something similar to this but my search fu must not be what it used to be because I couldn't find anything on this. I don't believe this has not been answered in the past. If someone could point me in the right direction it would be much appreciated.
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BloodDrag0n
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PostPosted: Wed Jul 02, 2014 9:10 pm    Post subject: Reply with quote

godsblight wrote:
Having the same problem as the OP. Found dynamic address as no base addresses could be found for this and did a what writes search, found 1 result that points at the original dynamic address. When searching for that dynamic address it brings no results. I have searched the forms for something similar to this but my search fu must not be what it used to be because I couldn't find anything on this. I don't believe this has not been answered in the past. If someone could point me in the right direction it would be much appreciated.


I too have searched all over the web for an answer, tutorial, help etc but I found absolutely nothing regarding this. If you find a solution, please let me know as I'm still struggling to resolve this.
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BloodDrag0n
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PostPosted: Thu Jul 03, 2014 8:47 am    Post subject: Reply with quote

I don't get it... I have asked this question in about 7 different forums and not one single person wants to help. Why do people on a cheat website not want to help others? It's not like I'm asking a stupid question.
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justa_dude
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PostPosted: Thu Jul 03, 2014 11:35 am    Post subject: Reply with quote

BloodDrag0n wrote:
I don't get it... I have asked this question in about 7 different forums and not one single person wants to help. Why do people on a cheat website not want to help others? It's not like I'm asking a stupid question.


Try rephrasing your question and providing an abundance of information. Make screenshots of everything you see and document every step leading up to your issue. Also, stop being an ass. Nobody here is obligated to help you, and you sound like a person asking why the sky is blue without having the background to understand the answer.

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STN
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PostPosted: Thu Jul 03, 2014 11:52 am    Post subject: Reply with quote

BloodDrag0n wrote:
I don't get it... I have asked this question in about 7 different forums and not one single person wants to help. Why do people on a cheat website not want to help others? It's not like I'm asking a stupid question.


I banned you from my forums (a temporary ban) because you kept demanding and when you couldn't get what you wanted, you then insulted us. You have no regard for the rules and when you don't get things your way, then you start insulting like that is going to make people to help you..typical case of bad parenting.

I see things haven't changed much as you're pretty much doing what you did back at deviated.

Good luck is all i can say.

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BloodDrag0n
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PostPosted: Thu Jul 03, 2014 11:06 pm    Post subject: Reply with quote

You can call it what you want, but you're just pissed off that I didn't want your services because you don't even reply to potential customers. I didn't insult anyone in any way. I simply said I no longer wanted your services because you were too slow, and that's a customers opinion. If you can't handle an opinion, maybe you shouldn't be running a website. Then you have the audacity to personally email me and use vulgar language and insult me because you're angry that someone doesn't want to be apart of your crap. Grow up.

Back on topic.

EDIT: It's funny that you found my post here. You must be actually stalking me, which in your case means you're trying to hack me. I'll tell you right now, stop wasting your time lol. If not, then I feel sorry for you. Get some sun.
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