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IDA2Obj : Static Binary Instrumentation

IDA2Obj is a tool to implement SBI (Static Binary Instrumentation).

The working flow is simple:

* Dump object files (COFF) directly from one executable binary.
* Link the object files into a new binary, almost the same as the old one.
* During the dumping process, you can insert any data/code at any location.
* SBI is just one of the using scenarios, especially useful for black-box fuzzing.
How To Use

* Prepare the enviroment:
* Set AUTOIMPORT_COMPAT_IDA695 = YESin the idapython.cfgto support the API with old IDA 6.x style.
* Install dependency: pip install cough

* Create a folder as the workspace.
* Copy the target binary which you want to fuzz into the workspace.
* Load the binary into IDA Pro, choose Load resources and manually load to load all the segments from the binary.
* Wait for the auto-analysis done.
* Dump object files by running the script MagicIDA/main.py.
* The output object files will be inside ${workspace}/${module}/objs/afl.
* If you create an empty file named TRACE_MODEinside the workspace, then the output object files will be inside ${workspace}/${module}/objs/trace.
* By the way, it will also generate 3 files inside ${workspace}/${module}:
* exports_afl.def (used for linking)
* exports_trace.def (used for linking)
* hint.txt (used for patching)
* Generate lib files by running the script utils/LibImports.py.
* The output lib files will be inside ${workspace}/${module}/libs, used for linking later.

* Open a terminal and change the directory to the workspace.
* Link all the object files and lib files by using utils/link.bat.
* e.g. utils/link.bat GdiPlus dll afl /RELEASE
* It will generate the new binary with the pdb file inside ${workspace}/${module}.

* Patch the new built binary by using utils/PatchPEHeader.py.
* e.g. utils/PatchPEHeader.py GdiPlus/GdiPlus.afl.dll
* For the first time, you may need to run utils/register_msdia_run_as_administrator.batas administrator.

* Run & Fuzz.
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