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  • Results 1 to 10 of 10
    1. #1
      Hacker
      Learning to hack games!
       
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      Fleep's Avatar
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      Talking How to Hack Any Game - OLLYDBG Tutorial How to use ollydbg debugger

      John Kittz
      So here it is the ollydbg tutorial you guys requested a while back, I hope this helps you and makes it easier for you to find the addresses and instructions you want in whatever game you are hacking.











      Here are the guidelines that I follow every time I Wanna find a series of addresses and instructions.
      Code:
      Step one – find address in cheat engine
      step two – find what rights to that address 
      step three – go on olly search for address the writes that
      Step 3.5 – by setting hardware breakpoints find where
      the beginning and end of the code is regarding the function you were looking for
       e.g. firing gun, this way we know where to stop searching
      step four – reverse through all the jumps jmp e.g. JNZ becomes JE
      step five – write comments and test a command at a time
      step six –if the game crashes then simply return to that address leaving a comment
       saying nop crashes or reverse crashes
      Step seven – you will have to restart ollydbg and the game every time, it can be tedious
      
      comments are very important! always put them in to make sure you know where you were last
      
      Here are some guidelines in detail
      
      Order in which instructions should be modified:
      1ST all jump commands should be reversed
      2ND all calls should be NOPED
      If you still haven't found our function that we keep searching in
       more complex instructions
      3RD we now start noping any instructions we haven't tried yet e.g. MOV BYTE PTR DS:[EAX+218],BL
      MOV BYTE PTR DS:[EAX+218],BL because because no actual instruction is getting copied
      4TH we leave to the end the most likely ones to crash
      E.g. MOV EAX,DWORD PTR DS:[ESI+8]
      ADD EAX,4 these instructions are very prone to crash
      And that's why we leave them until the end 
      If an instruction like this is NOPED then we may have to NOP
      several others above or below it usually until we found the next call
      this is because those instructions may use a value stored within the instruction
      that we NOPED this may take many tries and crashes
      
      Reversing of JMP'S
      JG = JL
      
      JLE = JG
      
      JE = JNZ
      
      
      This is mostly about trial and error
      
      Instructions like these should be ignored(unless they are part of a group of instructions):
      CMP – stands for compare, this is usually seen before jumps
      LEA – is used for more advanced calculations
      Pop, push and retn don't usually have much to do with recoil, ammo and other info we usually
      look for.
      Int's are usually quite irrelevant also
      
      Hope that helps out
      
      Fleep
      Here is the tutorial some people were having problems with not finding certain addresses so I've uploaded this small tutorial to try and help them out, I hope this made things clearer and I didn't ramble too much.

    2. Thanks tinmar0, Ercan Ayan, Heatle, ROGAR, keto thanked for this post
    3. #2
      Newbie
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      ivisi's Avatar
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      OLLYDBG Tutorial How to use ollydbg

      Hello, I don't know if I should reply here on or the YT Video, but I wanted you to realize: If you NOP the CALL EDX its done too, I mean it doesn't matter if you initialize the EDX but just don't call it. I don't know if I made my self clear but it comes down to: Just NOP CALL EDX (0x0045B717)
      Tip: You could just do Right Click > Undo Selection (Instead of restarting.)
      Regards
      Last edited by ivisi; 10-13-2012 at 04:35 AM.

    4. #3
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      Detk0rd's Avatar
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      Thank you for this

    5. #4
      Coder
      Wishing Trove had logical
      values.
       
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      maymonaise's Avatar
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      OLLYDBG Tutorial How to use ollydbg

      Thanks Fleep, I was actually really confused about
      how to use this, fifteen to twenty minutes ago.
      "All you need is ignorance and confidence and the success is sure."
      -- Mark Twain

      "For a long time it puzzled me how something so expensive, so leading edge, could be so useless, and then it occurred to me that a computer
      is a stupid machine with the ability to do incredibly smart things, while computer programmers are smart people with the ability to do incredibly
      stupid things. They are, in short, a perfect match."
      -- Bill Bryson

    6. #5
      Jr.Coder
      w00t w0rking hawd
       
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      noobhacky's Avatar
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      ty, awesome tut fleep.

    7. #6
      Newbie
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      How to Hack Any Game - OLLYDBG Tutorial How to use ollydbg debugger

      I have this really nooby question. How could you make so you can turn on rapid fire/no recoil through trainer? Like I've been checking out your source for changing simple addresses, but I have no idea how you can use information of addresses from ollydbg, and implement it in code.


      Edit: Never mind.. With the DLL is what i need to get that job done.
      Last edited by zars15; 12-24-2012 at 06:16 AM.

    8. #7
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      masterit146's Avatar
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      Hello Fleep. You can sent for me your OLLYDBG Full of you ? My OLLYBDG not have Pointer-> Exc,,,,......Please

    9. #8
      Global Moderator
      give me my colorz back
      FeelsBadMan
       
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      till0sch's Avatar
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      Quote Originally Posted by masterit146 View Post
      Hello Fleep. You can sent for me your OLLYDBG Full of you ? My OLLYBDG not have Pointer-> Exc,,,,......Please
      How about downloading it yourself from the website?

      https://www.ollydbg.de/

    10. #9
      Jr.Coder
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      noobhacky's Avatar
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      Thanks fleep. This helps me alot to get started !!

      Btw Fleep is using v.1.0 so I recommend all new commers to download the version he is using since the other versions are very unstable ://

    11. #10
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      How to Hack Any Game - OLLYDBG Tutorial How to use ollydbg debugger

      Cheats'n'Trainers
      Thanks FLeeps.

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