ffffffff0x/1earn

★ 5,670C++Audience · ops devopsComplexity · 1/5LicenseSetup · easy

Mindmap

mindmap
  root((1earn))
    Defensive security
      Log analysis
      System hardening
      Forensics and IR
      Honeypot setup
    Offensive security
      Web exploitation
      Privilege escalation
      Red team methods
      Bypass techniques
    Specialty areas
      ICS and OT security
      IoT and firmware
      Cloud security
      Mobile Android
    Learning resources
      CTF writeups
      HackTheBox guides
      Beginner roadmap

mindmap root((1earn)) Defensive security Log analysis System hardening Forensics and IR Honeypot setup Offensive security Web exploitation Privilege escalation Red team methods Bypass techniques Specialty areas ICS and OT security IoT and firmware Cloud security Mobile Android Learning resources CTF writeups HackTheBox guides Beginner roadmap

Click or tap to explore — scroll the page freely

Things people build with this

USE CASE 1

Look up incident response or forensic analysis steps for a compromised Linux or Windows system

USE CASE 2

Study post-exploitation techniques like privilege escalation for CTF competitions or red team practice

USE CASE 3

Find structured notes on industrial control system security or IoT firmware analysis

USE CASE 4

Follow the beginner roadmap to build a structured path through security learning materials

Tech stack

Markdown

Getting it running

Difficulty · easy Time to first run · 5min

Content is primarily in Chinese, readers who do not read Chinese will need translation tools to use most of the material.

Share and adapt freely for non-commercial purposes only, with attribution to the original authors (CC BY-NC-SA 4.0).

In plain English

1earn is a knowledge base for information security, maintained in Chinese by a team called ffffffff0x. The repository is a large collection of notes, guides, checklists, and writeups organized into categories covering both offensive and defensive security topics, as well as general development notes. On the defensive side, the repository includes material on log analysis, system hardening, forensic investigation (covering disk, memory, and file analysis), incident response procedures, and the setup of monitoring and honeypot infrastructure. On the offensive side, it covers web vulnerabilities and exploitation payloads, post-exploitation techniques such as privilege escalation and persistence, bypassing security devices, protocol-level attacks, and red team methodology. Specific topic areas include industrial control system (ICS) security with notes on protocols like S7comm and PLC attack techniques, IoT and firmware security, Android mobile security, cloud security for major providers, Windows and Linux exploitation, and CTF (Capture the Flag) competition writeups. The repository links to write-through solutions for popular CTF challenge platforms like HackTheBox and VulnHub to help learners practice. There is also a development section with notes on version control using Git, web development, databases, regular expressions, and data visualization. The README frames this as a personal knowledge-sharing project, with a disclaimer that errors are possible given the scope and the maintainer's own skill limits. It encourages readers to file issues for any mistakes or suggestions. A roadmap document is provided for beginners who want a structured path through the material. The content is licensed under CC BY-NC-SA 4.0, meaning it can be shared and adapted for non-commercial purposes with attribution.

Copy-paste prompts

Prompt 1

Summarize the Windows privilege escalation techniques covered in the 1earn knowledge base and list the most common attack paths

Prompt 2

What does 1earn document for Linux forensic investigation and what commands are suggested for analyzing a compromised host?

Prompt 3

Show me the CTF challenge methodology from 1earn for approaching a web application challenge on HackTheBox

Prompt 4

What ICS protocols does 1earn cover and what are the documented attack techniques for S7comm and PLC systems?

Prompt 5

How is the 1earn beginner security roadmap structured and what order should I study the topics in?

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