DAILA

The Decompiler Artificial Intelligence Language Assistant (DAILA) is a unified interface for AI systems to be used in decompilers. Using DAILA, you can utilize various AI systems, like local and remote LLMs, all in the same scripting and GUI interfaces. DAILA was featured in the keynote talk at HITCON CMT 2023.

DAILA provides a lifted interface, relying on the BinSync library LibBS to abstract away the decompiler. All decompilers supported in LibBS are supported in DAILA, which currently includes IDA, Ghidra, Binja, and angr-management. Currently, there are two AI systems supported in DAILA: OpenAI and VarBERT, the latter of which is a local model for renaming variables in decompilation published in S&P 2024. If you are looking for a demo of DAILA, please see the Demo section.

Installation

Install our library backend through pip and our decompiler plugin through our installer:

pip3 install dailalib && daila --install 

This will also download the VarBERT models for you through the VarBERT API. If you happen to be installing DAILA on a machine that won't have internet access, like a secure network, you can use our Docker image in the Docker Container section.

Ghidra Extra Steps

You need to do a few extra steps to get Ghidra working. Next, enable the DAILA plugin:

1. Start Ghidra and open a binary
2. Goto the Windows > Script Manager menu
3. Search for daila and enable the script

You must have python3 in your path for the Ghidra version to work. We quite literally call it from inside Python 2. You may also need to enable the $USER_HOME/ghidra_scripts as a valid scripts path in Ghidra.

Manual Install (if above fails)

If the above fails, you will need to manually install. To manually install, first pip3 install dailalib on the repo, then copy the daila_plugin.py file to your decompiler's plugin directory.

Usage

DAILA is designed to be used in two ways:

1. As a decompiler plugin with a GUI
2. As a scripting library in your decompiler

Decompiler GUI

With the exception of Ghidra (see below), when you start your decompiler you will have a new context menu which you can access when you right-click anywhere in a function:

If you are using Ghidra, go to Tools->DAILA->Start DAILA Backend to start the backend server. After you've done this, you can use the context menu as shown above.

Scripting

You can use DAILA in your own scripts by importing the dailalib package. Here is an example using the OpenAI API:

from dailalib import OpenAIAPI
from libbs.api import DecompilerInterface

deci = DecompilerInterface.discover()
ai_api = OpenAIAPI(decompiler_interface=deci)
for function in deci.functions:
    summary = ai_api.summarize_function(function)

Docker Container

If you are attempting to install DAILA for a one-shot install that will not use the internet after install, like on a secure network, you can use our Docker container. You should either build the container yourself, save the image to a tarball, and then load it on the target machine, or you can use our pre-built image. You can build the container yourself by running docker build -t daila . in the root of this repo. You can also download our pre-built image by running docker pull binsync/daila:latest (the image is for x86_64 Linux). The container contains DAILA and a copy of Ghidra.

Now you need to foward X11 to the container so that you can see the GUI. To do this, you need to run the container with the following flags:

docker run -it --rm -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix binsync/daila:latest

In the container, you can launch ghidra from /tools/ghidra_10.4_PUBLIC/ghidraRun. Now follow the Ghidra Extra Steps to enable the DAILA plugin and you're good to go!

Supported AI Backends

OpenAI (ChatGPT)

DAILA supports the OpenAI API. To use the OpenAI API, you must have an OpenAI API key. If your decompiler does not have access to the OPENAI_API_KEY environment variable, then you must use the decompiler option from DAILA to set the API key.

Currently, DAILA supports the following prompts:

• Summarize a function
• Rename variables
• Rename function
• Identify the source of a function

VarBERT

VarBERT is a local BERT model from the S&P 2024 paper ""Len or index or count, anything but v1": Predicting Variable Names in Decompilation Output with Transfer Learning". VarBERT is for renaming variables (both stack, register, and arguments) in decompilation. To understand how to use VarBERT as a library, please see the VarBERT API documentation. Using it in DAILA is a simple as using the GUI context-menu when clicking on a function.

Demo

You can find a demo of VarBERT running inside DAILA below:

Supported Decompilers

• IDA

• Binja

• Ghidra

• angr management