The DLL-loading shellcode I used in my cmd.xls spreadsheet was generated with a method I worked out to generate WIN32 shellcode with a C-compiler. You can find it on my new Shellcode page.
With this release, I provide you with all the tools you need to build your own version of cmd.xls:
- take cmd.dll
- replace the dll in ShellCodeMemoryModule.exe.bin with cmd.dll
- generate VBA code for this shellcode + DLL with shellcode2vbscript.py
- Copy this VBA code in a spreadsheet
Didier Stevens 