Rex::Nop

This library contains the opty2 library for dynamic generation of x86 multi-byte NOPs.This is useful in writing exploits and encoders. It allows you to dynamic generate variable length instruction sets that are equivalent to a No Operation(NOP) without using the actual 0x90 bytecode. The original code was written by Optyx and spoonm.

Installation

Add this line to your application's Gemfile:

gem 'rex-nop'

And then execute:

$ bundle

Or install it yourself as:

$ gem install rex-nop

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/rex-nop. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.