How to get the sections of an exe in .NET?

[LordCoder]

Hello!

 

I want to get the sections of an executable (.text, .rdata, etc). With PEiD it's easy to dump them, but programming it's more difficult. Anybody knows how to do so in .NET?

 

Thanks so much!

 

[ewwink]

you mean like

 

 

CFF Explorer.

[LordCoder]

Yes like in CFF Explorer but with programming code.

[xsp!d3r]

you can use this lib http://code.google.com/p/portable-executable-library/

[atom0s]

Check out my post here:

http://forum.tuts4you.com/topic/26862-net-directory-flags/?p=127022

[LordCoder]

@xsp!d3r Is there any documentation for this library?

@atom0s This gets the data only for .NET applications. I mean for all types of applications in any language.

[mrexodia]

This is code in C, but it could help...

    IMAGE_DOS_HEADER *pdh;    IMAGE_NT_HEADERS *pnth;    IMAGE_SECTION_HEADER *psh;    pdh=(IMAGE_DOS_HEADER*)((DWORD)pFileInfo->lpFile); //start of file = DOS HEADER    if(pdh->e_magic!=IMAGE_DOS_SIGNATURE) //check if it's a good MZ signature        return false;    pnth=(IMAGE_NT_HEADERS*)((DWORD)pFileInfo->lpFile+pdh->e_lfanew); //NT HEADER is file + e_lfanew    if(IsBadReadPtr(pnth, 4)) //check if its a readable pointer        return false;    if(pnth->Signature!=IMAGE_NT_SIGNATURE) //check NT signature        return false;    if(pnth->FileHeader.Machine!=IMAGE_FILE_MACHINE_I386) //check x32        return false;    psh=IMAGE_FIRST_SECTION(pnth); //little macro for section header

when you have IMAGE_SECTION_HEADER, you can dump the sections using the raw address (file+raw address) and the raw size.

Another trick I saw (in Armadillo) to get the section header is:

psh=(IMAGE_SECTION_HEADER*)pnth[1];

[LordCoder]

Oh I found NetPE app from Ki! which does exacly that.

 

Thanks everyone for help!

[atom0s]

@xsp!d3r Is there any documentation for this library?

@atom0s This gets the data only for .NET applications. I mean for all types of applications in any language.

 

You can just remove the managed check:

           // Is this managed?

            bool bIsManaged = (imgNtHeaders.OptionalHeader.DataDirectory[HeaderHelper.IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].Size > 0);

            if (!bIsManaged)

            {

                // invalid file..

                throw new Exception("Invalid PE file... file is not managed.");

            }

[idrcelab]

Oh I found NetPE app from Ki! which does exacly that.

 

Thanks everyone for help!

Did you mean this http://netpe.codeplex.com/