FROM ZERO
TO HERO
Explore application testing, infrastructure settings and practical tools through notes and reproducible examples.
Author: Georgii Kumurzhi
THE COLLECTION IN NUMBERS
TOPICS
PUBLIC NOTES
Obtaining a TLS Certificate Without Your Own Domain
A step-by-step example of obtaining a Let's Encrypt TLS certificate without your own domain using sslip.io.
Read noteJavaScript Backdooring in Confluence: Preparation
Practical setup of a Confluence and Evilginx2 lab for safely examining a watering hole scenario.
Read noteQuickly Editing Media Files in Word and PowerPoint Documents
A quick way to extract, edit, and replace media inside DOCX/PPTX files without finding every image manually.
Read noteHidden and System Attributes in Windows
How Hidden and System attributes affect Windows file visibility: File Explorer settings, CMD and PowerShell.
Read noteWHAT YOU WILL FIND
Learn at your own pace
Read at your own pace and return whenever you need.
A structured collection
Categories group notes by topic so you can quickly find a guide, related material and the next step.
Practical experience
Materials from a practising penetration tester: worked examples, real cases and practical techniques.
Step-by-step examples
Notes help retrace an investigation, from observations and hypotheses to commands and conclusions.
From fundamentals to advanced techniques
Explore topics from the basics to more advanced techniques in a structured collection.
About the author
These materials draw on the author's teaching, talks and practical work in offensive security.
START EXPLORING
1. Choose a note
Browse the public notes or search for a topic.
2. Try the examples
Follow the instructions in your own lab environment.
3. Watch the talks
Explore the original slides, recordings and conference photos.
QUESTIONS & ANSWERS
Do I need an account?
The English public edition can be read without an account or payment.
Where should I start?
Browse Notes, choose a category in the sidebar or search for a topic. Conference recordings and slides are collected under Talks.
Are all materials in English?
The page text is in English. Original screenshots, slides and recordings remain in their original language, usually Russian, as indicated alongside the material.
How do I open slides or videos?
Use the slide viewer to turn pages, zoom and expand the presentation. Recordings play in your browser; download links are available for locally hosted materials.
How do I switch languages?
Use the language link to open the corresponding Russian page. English translations are published after review.
How can I report an error?
Email iam@kgmnotes.com with the page URL and a description of the issue, including any translation correction.
Ready to get started?
Browse the collection and return to the notes whenever you need them.