Skip to content

reg1z's blog & notes

PNG Stego

Initializing search

reg1z/reg1z.github.io

Home
My Notes
About
Archive

reg1z's blog & notes

reg1z/reg1z.github.io

Home
My Notes
My Notes
- Navigating These Notes
  Navigating These Notes
  - Challenges and CTFs ⚔️
    
    Challenges and CTFs ⚔️
    
    Nice challenges
    Nice challenges
    
    NICE Challenge: Network Admin Crash Course | Mike Morris
    
    Tryhackme
    Tryhackme
    
    Rooms
    Rooms
    
    THM Room | On-Premises IaC
  - Lists
    
    Lists
    
    Cybersecurity Tools
    
    fun games for practical skills
    
    Maybe Projects
    
    Stuff I've Been Recommended
  - NCAE 2025 Preparation 🛡️
    
    NCAE 2025 Preparation 🛡️
    
    Linux Maneuvers
    
    Local Minihack Lab with Vagrant
    
    Microtik RouterOS
    
    NCAE AI Prompt
    
    Other NCAE Repos
    
    SPICE Config
    
    Potential System Hardening
    
    Deprecated
    Deprecated
    
    Other Tools to Consider
    
    Quickdraw Notes
    
    Summary Document
    
    Tutorial Video Notes
    Tutorial Video Notes
    
    01 Intro to the Environment
    
    02 Linux Commands and File System
    
    03 Filesystem Navigation from the Terminal
    
    04 Making Directories and Understanding Filepaths
    
    05 Moving and Copying
    
    06 Removing Directories and Using the History
    
    07 Creating and Reading Files
    
    08 Editing with Nano or Vi
    
    09 Creating Files with Editors and Deleting Files
    
    10 Creating User Accounts
    
    11 Managing Permissions and Sudo Users
    
    12 Exploring Sudoers and Removing Users
    
    13 Groups
    
    14 Passwords and Shadow Hashes
    
    15 Less, Grep, and Pipe
    
    16 Background on Services
    
    17 Exploring Networking Configuration
    
    18 Static Configuration in Kali with Interfaces File
    
    19 Static Configuration in CentOS with ifcfg Files
    
    20 Static Configuration in Ubuntu with Netplan
    
    21 Testing Connectivity with Ping
    
    22 Temporary Permanent and Flushing IPs
    
    23 Using Networking Service with Netcat
    
    24 Web Services with Apache
    
    25 Router Configuration and Mini Hack Completion
    
    26 Mini Hack Reconfiguration
    
    27 SSH Service Basics
    
    28 SSH Service Cryptographic Keys
    
    29 SSH Service Passwordless Authentication
    
    30 SSH Service Through The Router
    
    31 DNS Service Basics
    
    32 DNS Service Additional Zones
    
    33 DNS Service Through The Router
    
    34 Rsync Service Basics
    
    35 Cron Service Intro
    
    36 Rsync and Cron Automatic Secure Backups
    
    37 Intro to Firewalls with UFW
    
    38 Active Connection Defense
    
    39 Scripting Hello World
    
    40 Variables and User Input
    
    41 Scripts and File Paths
    
    42 Scripting and Root Permissions
    
    43 Scripted IP Changer Low Sophistication
    
    44 MicroTik Routers and Mini Hack 2025
    
    NCAE misc
    
    NCAE Tutorial Playlist Notes
    
    NCAE minihack CentOS
  - Security Research
    
    Security Research
    
    Piecing Apart Privacy
  - Terminology
    
    Terminology
    
    Amortized Runtime
    
    BLUF
    
    Broadcast Domains
    
    Chain Rule
    
    Choice Paralysis
    
    Few-Shot Learning
    
    Gradient Descent
    
    Idempotent
    
    Linear Regression
    
    Many-Shot Learning
    
    Network Bridging
    
    Sum of the Squared Residuals
    
    The Intelligence Cycle
    
    UUID
    
    VLAN Trunking
    
    Zero-Shot Learning
  - Unsorted
    
    Unsorted
    
    AI Safety
    
    Ansible
    
    Antisyphon Training
    
    Browsers with Vim Motions
    
    Continuous Integration and Delivery
    
    Cyber Threat Intelligence
    
    cyber threat notes
    
    Digital Forensics and Incident Response
    
    Dirbuster
    
    ELK Stack
    
    From Bash to PowerShell
    
    Git Submodules
    
    git-filter-repo
    
    Hardening Linux Systems
    
    Linux Command - dd
    
    Linux Drop Caches
    
    logrotate
    
    MITRE ATT&CK
    
    MITRE Frameworks
    
    Modern Web Browsers
    
    Network Spaces AKA Reserved IP Ranges
    
    OSINT Resources
    
    PNG Stego
    
    Proxmox
    
    Random Notes
    
    Rclone
    
    Ruby
    
    rsyslog
    
    SAL1 Prep
    
    SANS Institute Black History Month CTF
    
    Steganography
    
    Sysmon
    
    syslog
    
    systemd
    
    systemd-journald
    
    systemd-timers
    
    Team Strategy
    
    Traffic Analysis with Wireshark
    
    tmux
    
    Useful Crumbs
    
    UWSM
    
    Vagrant
    
    Vagrant - Creating Boxes
    
    WGU Resources
    
    Windows
    
    Windows Event Logs
    
    Windows Sysinternals
    
    Maps
    
    Maps
    
    Cybersecurity
    
    Machine Learning
  - Works in Progress
    
    Works in Progress
    
    Developer Productivity
    
    Presentations
    
    systemd_studygroup
About
Archive
Archive
- 2025

Home
My Notes
Navigating These Notes
Unsorted

stego

PNG Stego

Related + Sources

https://blog.xpnsec.com/png-steganography/
PNG Spec 2nd ed. → Data Stream Structure