^{[ 🌐 📩 🔥 ]}

Decompiler!

Let's be honest, there is no reason to remember how to decompile stuff with the various tools available. Wouldn't it be nice to just decompile the $h*! out of things right off the fingertips in Visual Studio Code? Well, here we go:

This extension decompiles ...

• Binary executables for various platforms
  • as supported by Ghidra; Windows PE, Linux ELF, IOS, etc..
  • or IDAPro (Experimental, Windows Only for now)
• Java Jar archives and compiled Classes
• Android APK's
• Python .pyc and .pyo
• Ethereum/EVM based Smart Contracts
  • (Experimental, Linux/MacOs only)

Just right-click → Decompile on a supported executable and wait for the magic to happen.

The decompilation result is added to a temporary sub-workspace. You can right-click → Download files to your local file-system right from the sub-workspace.

Have phun 🙌

Tour

macOS

Windows (Ghidra vs. IDAPro)

Ethereum Smart Contract

Save the EVM byte-code in a file with extension .evm, then right-click → Decompile.

Setup

Troubleshooting & FAQ

(macOs) "macOs cannot verify the developer of 'decompiler' ...

• Follow the fix outline in https://support.apple.com/en-za/guide/mac-help/mh40616/mac.
• Verify that you've downloaded ghidra from the original website, verify checksums. Note: you're running an NSA tool on your computer, just saying.
• Open the <ghidra-install-folder>/Ghidra/Features/Decompiler/os/osx64 in finder, Ctrl+mouseClick on decompile → open and confirm that you trust the application (you only need to do this one time).

(General) This thing failed with: {"code":1,"type":"single"}. What does this mean?

• Your tool (Ghidra/Ida/...) is not set up correctly and therefore execution failed. The path may be wrong, the tool may fail due ti an incorrect java configuration or the java version is incompatible. There are many ways this error can be provoked and it's in 99% of cases a misconfiguration of the tool or the environment it requires (e.g. java env vars, version, etc)
• code: is the tools exit code. we are expecting success (0) but a tool may return non-zero to indicate an error. Check the tools output to troubleshoot. code=1 means the tool retunred exitcode 1, indicating an error conditon.
• type: is how ths tool got executed. single or multi command. ignore this.

(Ghidra) Failed to run decompiliation command. Check your configuration. {"code":1,"type":"single"}

• make sure you're using a supported java version (e.g. win: jdk 14 is working, jdk 16 seems to be incompatible)
• make sure environment vars are set up correctly (ghida setup doc google: setting env vars)
  • JAVA_HOME pointing to your jdk installation folder
  • PATH including an en try pointing to $JAVA_HOME/bin (win: %JAVA_HOME\bin)
• make sure ghidraRun and support/analyzeHeadless run without errors (you may have to follow the analyzeheadless documentation to provide meaningful parameters for this test)
• check out the ghidra application log in (windows) c:\users\<yourname>\.ghidra\<.ghidraversion>\application.log

Note: always restart vscode after changing env vars for changes to take effect.

Credits

This extension wouldn't be possible without the smarties that are developing the following reverse-engineering tools:

• Ghidra by @NSA/CSS
• JadX by @skylot
• JD-CLI by @Josef Cacek
• dex2Jar by @Bob Pan
• IDA Pro Advanced & Decompiler
• python-uncompyle6 by @R. Bernstein
• panoramix the engine behind eveem.org created by @Tomasz Kolinko
• LogoMakr (CC; Logo)

Release Notes

see CHANGELOG