Cybersecurity Notes Save
My Markdown notes for all things cybersecurity
Cybersecurity Notes
My Markdown notes for all things cybersecurity. Best viewed in Obsidian.
Read on to find out how to install this repository, and where to start finding the information you need.
DISCLAIMER: These notes are for educational purposes only. Use them as a learning resource or a reference guide when performing tests with explicit permission. I'm sure you've seen similar disclaimers on Cybersecurity resources before, but always make sure you have permission to do what you're doing. I am not responsible or liable if you misuse this resource and get into trouble.
Certain files contain examples of Windows shellcode (for example, the files in the writeup for the HacktheBox machine Cereal. You may have to add a Windows Defender exclusion to prevent Windows from quarantining these files, or view the Obsidian vault in a Unix system instead.
Installing Obsidian
On Windows
Go to the download page... and click Download
On Kali
Go to the download page, and download the AppImage. Put it in any directory you want (I went with ~/Applications)
You can either double click the file to run it, or run it with /path/to/Obsidian-0.11.9.AppImage
You may get the following error while running:
┌──(mac㉿kali)-\[~/Applications\]
└─$ ./Obsidian-0.11.9.AppImage
\[2122:0327/193255.690087:FATAL:setuid\_sandbox\_host.cc(158)\] The SUID sandbox helper binary was found, but is not configured correctly. Rather than run without sandboxing I'm aborting now. You need to make sure that /tmp/.mount\_Obsidi1nvAuD/chrome-sandbox is owned by root and has mode 4755.
Trace/breakpoint trap
To fix this, run obsidian with the --no-sandbox flag
I setup this alias in ~/.bashrc:
alias obsidian="~/Applications/Obsidian-0.11.9.AppImage --no-sandbox"
Finally, if Obsidian stops responding on launch, update Kali:
sudo apt update
sudo apt full-upgrade -y
Downloading the Vault
You will need to download git. This is a quick and easy process.
On Windows, open the Start Menu and search for 'Git Bash', then click it to open a bash terminal (or navigate to the folder you want to install the notes into, then right-click and press 'Git Bash Here'). On Unix, open a terminal of your choice.
In this Git Bash/terminal, type the following:
git clone [email protected]:Twigonometry/Cybersecurity-Notes.git
If you are uncomfortable using the command line, you can install GitHub Desktop instead.
Once you have cloned the repsitory, open Obsidian and click Open folder as vault, then select the Cybersecurity-Notes folder that was just created by Git. You're ready to go!
Where to Start?
If you have no idea what you're looking for, go to the [[Starting Point]] page!
If you want to find writeups, they're all in the Writeups folder. Cheat sheets are in the Cheat Sheets folder. You get the idea.
You can also load various workspaces by clicking the 'Manage workspaces' icon on the side panel:
![[Pasted image 20210621224914.png]]
Then click load!
The Cheat Sheets folder has a number of subfolders, such as sheets on Web Hacking, Linux, and Password Cracking. General cheat sheets, such as the [[Fundamental Skills]] cheat sheet, are in the top level of the folder. This is a good place to start if you're a complete beginner.
What is this Repository?
This is a public version of my main Obsidian vault, containing fleshed out cybersecurity notes and finished writeups. I will commit stuff to this repository as I finish it, moving it over from my main vault.
Requesting Content
If you want to request I add something to this repo, I will do my best to research it and write up some content - you can open an issue to make such a request. I have a [[To Add|list of things to add]], so please check it isn't there first.
Using Obsidian
You could technically view this information straight out of GitHub, as it is all Markdown files - but it's built to be viewed in Obsidian, where all the code is pretty and the links between notes actually work.
You can see how this collection of notes has developed over time in the git history. Type git log to see a list of commits, and git checkout [HASH] to go back in time and see the state of the repo back then.
Useful Hotkeys
Obsidian supports a wide range of hotkey commands. Some of the most useful ones are listed below, if you're into your Zettelkasten power use (who isn't?)
(*) indicates a custom hotkey
Global Search: Ctrl + Shift + F
(*) Open Random Note: Ctrl + R
Turn line into Checklist/Toggle Status: Ctrl + Enter (one press turns into list, two presses into checklist, three presses toggles status)
Toggle mode: Ctrl + E
(*) Toggle default mode: Ctrl + Shift + E (useful for when you want to go into graph view and jump around notes, but stay in preview mode - this behaviour is not default)
(*) Open local graph: Ctrl + L (this is useful for exploring linked notes - it will open the graph in a new pane, and clicking a linked note will open it along with its local graph)
Paste Plain Text: Ctrl + Shift + V (avoids escaping characters in nmap/autorecon output etc - useful if you want to fork/edit this repo)
(*) Split Pane Vertically: Ctrl + Alt + V
(*) Split Pane Vertically: Ctrl + Alt + H
Back/Forward: Alt + Left-Arrow/Alt + Right-Arrow
Links
Open Source Agenda Badge
