Teach to remove check CRC with files in main.exe

[MuForum.Info]

"Data\Local\Filter.bmd - File corrupted."

Teach to remove check CRC with files in main.exe

Many Managers face with such problem: When change of some files in client, when entering in play client then gives here is such error:

• Example: "Data\Local\Filter.bmd - File corrupted." (Can be any file: Text.bmd, Item.bmd и e.t.)

This error is concluded in that that main.exe will check CRC determined files and when change some checked file, client you give error!

# OllyDbg v1.10: Is a 32-bit code level debugger. OllyDbg has an emphasis on binary code analysis making it particularly useful in cases where the source is unavailable. It runs as an ordinary process parallel to the debugged application and allows you full control over the application. OllyDbg recognizes procedures, API call parameters, switches, tables, constants, and strings. It dynamically traces stack frames, locates routines from object files and libraries, and allows custom labels and comments in disassembled code. The program supports conditional, logging, and memory breakpoints. As well, it understands MMX and 3DNow! commands, and writes patches back to an executable file..

Files.MuForum.Info: Download
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# Russian variant Guide: For people, who talks in russian! (Русский вариант Guide!)


We Proceed with the suit:
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1. Open main.exe by means of program "OllyDbg v1.10".
   -
2. We Press "Alt+E".
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3. We Choose in section "Path" line with way to main.exe and press the left call two times.
   -
   
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4. Appear new window(Right call) -> Search for -> All referenced text strings.
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5. Appear new window(Right call) -> Search for text ->
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6. We Enter the word, which want to find. (Note: Mark must be on point "Entire scope")
   -
   
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7. You Press two times left call on inscription.
   -
   
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8. Before you to appear here is such window, with which in the following we shall work!
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9. Here is piece of the code, with which you to come to work! (Note: Pay attention to lines "PUSH main.xxx" and "CALL main.xxx")
   -
   
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10. Now you it is necessary to press on "PUSH main.xxx" lines "ASCII "Data\Local\Item.bmd"" (Two times press left call) -> copy the text and close this small window.
    -
    
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11. Now we press two times on "PUSH main.xxx" lines "ASCII "Data\Local\Filter.bmd"" and change that code, on code, which we have copied in previous action!
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12. Now you it is necessary to press on "CALL main.xxx" lines "ASCII "Data\Local\Item.bmd"" (Two times press left call) -> copy the text and close this small window.
    -
13. Now we press two times on "CALL main.xxx" lines "ASCII "Data\Local\Filter.bmd"" and change that code, on code, which we have copied in previous action!
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14. After change "CALL main.xxx" and "PUSH main.xxx", beside you must be here is such picture!
    -
    
    -

------
Credits go to S@nek[BoR]
Thank you eRRoR[CzF] for help in creation this Guide.

[MentaL]

[MuForum.Info]

• -
  15. Right call -> Сopy to executable -> all modifications -> copy all.
  -
  
  -
  
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  16. In new window: right call -> "save file". (The Note: Rewrite main.exe it is impossible! - Change, on what you is pleased name and save!)
  -
  

P.S. -> This my first FAQ on OllyDbg so do not judge strictly!
P.S. -> Excuse me for my bad English!



# Russian variant Guide: For people, who talks in russian! (Русский вариант Guide!)


------
Credits go to S@nek[BoR]
Thank you eRRoR[CzF] for help in creation this Guide.

[MuForum.Info]

"Data\Local\Filter.bmd - File corrupted."

Teach to remove check CRC with files in main.exe

Above offered way will help you to dispose of such error as:

• "Data\Local\Item.bmd - File corrupted."
  "Data\Local\Filter.bmd - File corrupted."
  "Data\Local\FilterName.bmd - File corrupted."
  ...

Above offered way will help you to remove check CRC in main.exe exactly with determined file, rather then with all files!

Question: Than good above offered way and that he does?
Answer: The Way this good that we not what do not delete/add, consequently, will not be a spoil of the code!
- Above done way simply does so that main.exe will check same file two times, but our file now will not are checked!


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P.S -> At presence of the head on shoulder, this FAQ possible to use for pass-by many in main.exe and not only...

[CockMan]

tuts really great, and answered my question about the check for bmds, you can have it set to do nothing when its suppose to check for the other bmds. :D might be the start of making something other than bmds for models.

[chris05]

MuForum.Info,

Nice job... Thanks for it...

(Sorry my bad English)

[HellH@und]

You forget some credit part

[MuForum.Info]

You forget some credit part

Not what I have not forgotten...
If you something dislike, so apply to eRRoR[CzF], he will prove you that this FAQ I wrote with zero!

For specifically clever, once again write Credits:


------
Credits go to S@nek.
Thank you eRRoR for help in creation this FAQ.

[RedMG]

Thanks S@nek....Are you S@nek? GREAT GUIDE!!!!!!!!!

[MuForum.Info]

Thanks S@nek....Are you S@nek? GREAT GUIDE!!!!!!!!!

Yes, I S@nek!

P.S. -> Simply me not smog create account with NickName: S@nek, and I create another account with NickName: "MuForum.Info"!

[MuForum.Info]

# for all - Apologize that wrote FAQ... (the bad idea was...)

P.S -> Moderators, delete please FAQ, people is not valued someone else work...

[Washington]

this is very good
congratulations..

but filter.bmd "stoped" to work..
but thanks for shared

[sanjaa]

Yes, I S@nek!

P.S. -> Simply me not smog create account with NickName: S@nek, and I create another account with NickName: "MuForum.Info"!

maybe
was unable to
:yak:

[Annaev]

If you do a guide how to do other filter.bmd to work. So we can edit the Filter.bmd and working.

[Hacke]

uhm cant you just bypass that corrupted message by searching for file corrupted and change je jmp ### to jmp #### its a fast way to get rid of the problem and the filter or other bmd should still work (btw to bypass or remove CRC check isent good for all files XD never do it for skills ;) but for ancient filter and so on its fine)

[Annaev]

Hacke, can you post more details about it?

[Hacke]

hmm ok its pretty simple you search like you did before but this time you search for file corrupted and above that messsage ( if you follow it) there is a conditinal jump (je short #####) just change that je to jmp and you bypassed the condition of checking crc first

[Annaev]

Tnx, Hacke.

Very easy. Now my filter.bmd is working I can edit it and removed the crc check.

Respect to you...

[Hacke]

oh my pleasure as long people want to learn stuff its all cool but if they just wants you to do the things for them its annoying