DecryptedExeFS.bin Extraction, How-To

Discussion in '3DS - ROM Hacking, Translations and Utilities' started by cots, Jul 5, 2016.

  1. cots
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    cots GBAtemp Fan

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    How do I extract then rebuild the contents of DecryptedExeFS.bin ?
     
  2. Oorah

    Oorah Advanced Member

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    What file was it your were extracting? .3DS, .CIA, or .CIX?
     
  3. ihaveamac

    ihaveamac GBAtemp Guru

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    Tigard, OR
    https://github.com/dnasdw/3dstool/releases
    Code:
    3dstool -xvtf exefs exefs.bin --exefs-dir exefs --header exefsheader.bin  # extract
    3dstool -cvtf exefs exefs.bin --exefs-dir exefs --header exefsheader.bin  # create
    
    there's probably some gui program out there that does it, I don't know of.

    if you need to make your own exefs header, this might help: http://www.3dbrew.org/wiki/ExeFS
     
  4. cots
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    cots GBAtemp Fan

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    Well, I converted a 3DS to CIA so I assumed the resulting CIA was decrypted, but was wrong so I had to decrypt the CIA too. I got it all figured out now. I was writing a guide that since was published -> https://gbatemp.net/threads/tutorial-nes-injection.433414/

    — Posts automatically merged - Please don't double post! —

    I actually used your github guide in decrypting the CIA and credited you in it.
     
    ihaveamac likes this.
  5. Oorah

    Oorah Advanced Member

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