This is not an officially supported Google product.

This extension supports Nullsoft Scriptable Install System (NSIS) binaries built using the NSIS builder available from https://nsis.sourceforge.io/

• Download the built extension from GitHub
  • Visit the Releases page, normally use the latest release
  • Download the built extension zip file, the name will be similar to: ghidra_11.0_PUBLIC_YYYYMMDD_nsis.zip
• If you don't already have Ghdira, download and install Ghidra from https://ghidra-sre.org/
• Install the extension into Ghidra
  • Start Ghidra
  • Open File->Install Extensions...
  • Press the icon found in the top right of the Install Extensions window
  • Navigate to the file location where you downloaded the extension zip file above and select it
  • Press OK
  • You will be prompted to restart Ghidra for the changes to take effect

• Install Java
  • Tested verison: jdk-18.0.2
• Install eclipse from eclipse.org
  • Tested version: 2020-12
• Install Ghidra
  • Tested version: ghidra_11.0_PUBLIC
  • Ghidra must be started atleast once.
• Install Ghidra Eclipse extension, follow instructions here
• Checkout git project ghidra-nsis-extension to local directory
• In eclipse's File menu, select New->Java Project
• Un-select Use default location and navigate to the nsis folder in the git checkout location
  • ghidra-nsis-extension/nsis
• Press Next
• Un-select Create module-info.java file
• Press Finish
  • There will be build errors
• In the GhidraDev menu of Eclipse, use the Link Ghidra... and enter the path to the Ghidra binary install location
  • Select the Java project nsis just created
  • If there is Java conflict probably best to keep the current Java by pressing Cancel
  • Build errors should be resolved
• Add the nsis/src/nsis/lib/xz.jar file to the build path in Eclipse to import those dependencies
• You can test that everything is working in your project by selecting the Runmenu, then Run As and Ghidra.
• A new instance of Ghidra should be loaded, if you import an NSIS executable file, should see the 'Nsis' Format suggestion in the first entry of the import dialog.

• If a change is made to Nsis.slaspec, it needs to be reprocessed by the sleight utility. Example command: <ghidra installer folder>/support/sleigh data/languages/Nsis.slaspec

• Install gradle
  • Tested version: 7.3
• Execute the command from nsis folder

$ gradle -PGHIDRA_INSTALL_DIR=<path_to_ghidra>

• Zip file will be created in the dist folder

• https://ghidra.re/courses/languages/html/sleigh.html
• https://www.reddit.com/r/ReverseEngineering/comments/bupmxu/implementing_a_new_cpu_architecture_for_ghidra/
• https://github.com/VGKintsugi/Ghidra-SegaSaturn-Processor
• https://www.reddit.com/r/ghidra/comments/bhhrt0/quick_guide_to_creating_a_processor_in_ghidra/
• https://wrongbaud.github.io/writing-a-ghidra-loader/

• NSIS home: https://nsis.sourceforge.io/
• Data structures for NSIS file format: https://sourceforge.net/p/nsis/code/HEAD/tree/NSIS/trunk/Source/exehead/fileform.h
• IDA plugin for NSIS files: https://github.com/isra17/nrs