explaingit

woodpecker-appstore/ghost-bits-encoder

Analysis updated 2026-05-18

27JavaAudience · developerComplexity · 2/5Setup · moderate

TLDR

A Woodpecker security-testing plugin that encodes text into unusual Unicode variants to help test for filter bypass and obfuscation issues.

Mindmap

mindmap
  root((ghost-bits-encoder))
    What it does
      Woodpecker plugin
      Ghost Bits Unicode encoding
      11 registered functions
    Tech stack
      Java
      Maven
    Encoders
      Basic encode decode
      JSON aware
      URL safe
      Base64 Ghost
      CRLF injection
      BCEL
    Use cases
      Test filter bypass
      Generate obfuscated payloads
      Security testing workflows
    Audience
      Security testers

Code map

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filefunction / class

What do people build with it?

USE CASE 1

Test whether a web application's input filters can be bypassed using Unicode obfuscation

USE CASE 2

Generate JSON-safe or URL-safe obfuscated payloads for security testing

USE CASE 3

Test CRLF injection handling in an application using the CRLF injection encoder

What is it built with?

JavaMaven

How does it compare?

woodpecker-appstore/ghost-bits-encoderchrisjenx/androidtimelockzerozshare/openfriendmod
Stars272829
LanguageJavaJavaJava
Last pushed2012-11-19
MaintenanceDormant
Setup difficultymoderateeasyeasy
Complexity2/52/52/5
Audiencedeveloperdevelopergeneral

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · moderate Time to first run · 30min

Requires an existing Woodpecker installation and building the plugin with Maven before copying it into the plugin directory.

In plain English

This is a plugin for Woodpecker, a security testing tool, focused on encoding and decoding text in unusual ways, specifically using a technique called "Ghost Bits," which hides information by mapping regular text characters into less common Unicode symbols. Unicode is the global standard for representing text characters from all the world's writing systems. The plugin registers 11 functions inside Woodpecker's interface. The basic encode tab takes any text you enter and generates five random variations of it using characters from different Unicode blocks (such as Arabic, Thai, mathematical symbols, and others), each of which looks different but decodes back to the original. The decode function reverses this. Beyond that, it offers specialized encoding variants useful in security testing: JSON-aware encoders that preserve the structure of a JSON object while obfuscating the string values inside it, URL encoders that produce web-address-safe encoded variants in different formats, a Base64 Ghost encoder that encodes text to Base64 and then applies Ghost encoding on top, a CRLF injection encoder (CRLF refers to special line-break characters sometimes exploitable in web vulnerabilities), and a BCEL encoder for a Java bytecode format. The project is written in Java and built using Maven, a standard Java build tool. It is designed to be copied into Woodpecker's plugin directory so the tool can load it automatically on startup.

Copy-paste prompts

Prompt 1
Show me how to build this plugin with Maven and install it into Woodpecker's plugin directory
Prompt 2
Explain how Ghost Bits encoding maps text into unusual Unicode characters
Prompt 3
Walk me through the difference between the JSON-aware encoder and the URL encoder in this plugin
Prompt 4
What is the BCEL encoder used for and how does it relate to Java bytecode

Frequently asked questions

What is ghost-bits-encoder?

A Woodpecker security-testing plugin that encodes text into unusual Unicode variants to help test for filter bypass and obfuscation issues.

What language is ghost-bits-encoder written in?

Mainly Java. The stack also includes Java, Maven.

How hard is ghost-bits-encoder to set up?

Setup difficulty is rated moderate, with roughly 30min to a first successful run.

Who is ghost-bits-encoder for?

Mainly developer.

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