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ida-batch_decompile

Decompile all the things!

IDA Batch Decompile is a plugin for Hex-Ray's IDA Pro that adds the ability to batch decompile multiple files and their imports with additional annotations (xref, stack var size) to the pseudocode .c file

idabatchdecompile

🐤 pssst! - ida-batch_decompile is also part of project: unbox - a nobrainer commandline tool to unpack and decompile all sorts of things.

Usage

idascript (gui mode)

  1. open target, wait for analysis to finish
  2. IDA Pro -> File/Script file... -> <this_python_script>
  3. IDA Pro -> File/Produce file-> IdaDecompileBatch ...
  4. tick Annotate StackVarSize, Annotate Func XRefs
  5. click OK to decompile.

Note: File will be saved in target folder as <target_image_name.c>

idascript (cmdline batch mode)

<path_to_ida>/ida(w|w64)(.exe) -B -M -S"<path_to_this_script> \"--option1\" \"--option2\"" "<target>"

Note that options need to be quoted with \"

Available options, see --help

--output                        ... output file path
--annotate-stackvar-size        ... annotate function stack variable sizes
--annotate-xrefs                ... annotate function xrefs
--imports                       ... process imports
--recursive                     ... recursive batch decompile
--experimental-decompile-cgraph ... experimental: manually decompile function call graph

Ida Plugin

  1. Follow the IDA Pro documentation on how to add python plugins.
  2. IDA Pro -> File/Produce file -> IdaDecompileBatch ...

run

ida console: decompiling dbghelp.dll

[__main__/36908][DEBUG     ] [idabatchdecompile.PLUGIN_ENTRY  ] [+] initializing IdaDecompileBatchPlugin
[__main__/36908][DEBUG     ] [idabatchdecompile.__init__      ] [+] is_windows: True
[__main__/36908][DEBUG     ] [idabatchdecompile.__init__      ] [+] is_ida64: False
[__main__/36908][DEBUG     ] [idabatchdecompile.wait_for_analysis_to_finish] [+] waiting for analysis to finish...
[__main__/36908][DEBUG     ] [idabatchdecompile.wait_for_analysis_to_finish] [+] analysis finished.
[__main__/36908][DEBUG     ] [idabatchdecompile.load_plugin_decompiler] [+] trying to load decompiler plugins
[__main__/36908][DEBUG     ] [idabatchdecompile.load_plugin_decompiler] [+] decompiler plugins loaded.
[__main__/36908][DEBUG     ] [idabatchdecompile.PLUGIN_ENTRY  ] [+] Mode: commandline w/o args
[__main__/36908][DEBUG     ] [idabatchdecompile.set_ctrl      ] [+] IdaDecompileBatchPlugin.set_ctrl(<__main__.IdaDecompileBatchController object at 0x056FCF90>)
[__main__/36908][DEBUG     ] [idabatchdecompile.init          ] [+] IdaDecompileBatchPlugin.init()
[__main__/36908][DEBUG     ] [idabatchdecompile.init          ] [+] setting up menus
[__main__/36908][INFO      ] [idabatchdecompile.PLUGIN_ENTRY  ] [i] IdaDecompileBatch loaded, see Menu: ('File/Produce file/', 'IdaDecompileBatch ...')
...
 The application has been completely decompiled.
[__main__/36908][DEBUG     ] [idabatchdecompile.decompile_all ] [+] finished decompiling 'dbghelp.dll' as 'dbghelp.c'

annotated pseudocode: dbghelp.c

//----- (03052800) --------------------------------------------------------
// **** Variables ****
// * stack size: 20
// {"diff_size": 4, "offset_text": "[bp+0h]", "size": 4, "name": " s", "offset": 0}
// {"diff_size": 4, "offset_text": "[bp+4h]", "size": 4, "name": " r", "offset": 4}
// {"diff_size": 4, "offset_text": "[bp+8h]", "size": 4, "name": "arg_0", "offset": 8}
// {"diff_size": 4, "offset_text": "[bp+Ch]", "size": 4, "name": "dwBytes", "offset": 12}
// {"diff_size": 4, "offset_text": "[bp+10h]", "size": 4, "name": "arg_8", "offset": 16}
// *******************
// ***** XREFS *****
// * # 1
// sub_30733D0+30
// *******************
int __stdcall sub_3052800(int a1, SIZE_T dwBytes, int a3)
{
  int result; // eax@17
  HANDLE v4; // eax@21
...

//github.com/tintinweb