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Old 06-29-2008, 06:15 AM
tribal tribal is offline
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Join Date: Jun 2008
Posts: 11
Default Help with rebuilding exe

Hello,

Im trying to rebuild a protected .net assemby. I think the protection used is reactor but im not sure about that.

I unpacked the assembly using ollydbg and try to rebuild the PE header using the way described by the video tutorial from rongchaua.

I rebuilded the MetaData RVA and the MetaData Size. It looks like this went OK, the errors disapeard and I can open the metadata streams now.

I fixed the NT file header (removed the checked "this is a dll file" thing) and saved the exe.

WHen i try to launch the "fixed" exe it says: "cant initialise the application (0xc000007B)" (i get the message in dutch, so the translation is not 100% accurate).

I guess it points to an invalid memory address somewhere, but i got no clue how to fix this.

In the zip file is the unfixed dump from olly and the exe i tried to fix but doesnt work.

What am I doing wrong and how can I fix this exe? (note: im noob in reversing)

link to zip: here
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