Joe Emerick’s Post

🔐 𝗪𝗵𝘆 𝗕𝗮𝘀𝗵 𝗦𝗰𝗿𝗶𝗽𝘁𝗶𝗻𝗴 𝗶𝘀 𝗮 𝗠𝘂𝘀𝘁-𝗛𝗮𝘃𝗲 𝗦𝗸𝗶𝗹𝗹 𝗳𝗼𝗿 𝗖𝘆𝗯𝗲𝗿𝘀𝗲𝗰𝘂𝗿𝗶𝘁𝘆 𝗣𝗿𝗼𝘀! 🖥️ In the world of cybersecurity, automation is key 🔑, and Bash scripting is one of the most powerful tools in a hacker's toolkit 💻. From rapid reconnaissance 🕵️♂️ to automating patch management and system hardening 🔒, here's why you need to sharpen your Bash scripting skills: 1️⃣ Automation of Repetitive Tasks: Time is of the essence ⏳! Whether scanning networks 🌐 or parsing logs, Bash helps automate routine security tasks, saving hours of manual work. 2️⃣ System Auditing: Conduct real-time security audits 🛡️, spot misconfigurations and ensure compliance in a few lines of code. 3️⃣ Custom Exploit Development: Bash can be used to write your own proof-of-concepts (PoCs) 🧑💻 and exploit scripts, giving you an edge in bug bounties and penetration tests. 4️⃣ Incident Response: Need to quickly isolate an infected system? Bash scripts make it easier to gather logs 📜, identify malicious activity, and stop attacks in their tracks 🚨. 🛠️ With Bash, you can transform a simple terminal into your ultimate cybersecurity weapon 🗡️. Are you using Bash in your security workflows? Share your favourite tricks below! ⬇️👇 #CyberSecurity #BashScripting #Automation #EthicalHacking #BugBounty #Scripting #Linux

🔐 OverTheWire Bandit Level 24-25: Cracking the Pincode 🔐 Hey LinkedIn Community! I recently tackled an intriguing level on OverTheWire’s Bandit challenge, specifically Level 24-25. This level required a combination of networking tools and bash scripting to brute-force a pincode. Here’s a walkthrough of how I approached and solved it: Understanding the Task: The task involved connecting to a local service using netcat and providing a password along with a secret pincode. The challenge was to brute-force the correct pincode, which is a 4-digit number ranging from 0000 to 9999. Initial Exploration: Connecting to the service using netcat revealed the format for the input: “I am the pincode checker for user bandit25. Please enter the password for user bandit24 and the secret pincode on a single line, separated by a space.” Automation with Bash Scripting: Brute-forcing the pincode manually would be tedious, so I wrote a bash script to automate the process. The script: Generates all possible 4-digit pincodes. Constructs the required input format by combining the password with each pincode. Sends these inputs to the service using netcat. Captures the service's response. Execution I created a temporary directory to work in, saved the script, and made it executable. Running the script generated two files: one with all possible inputs and another capturing the service's responses. By leveraging bash scripting and netcat, I efficiently brute-forced the pincode and advanced to the next level. This challenge was a great exercise in combining multiple tools and scripting techniques to solve a problem. If you're into cybersecurity or looking to sharpen your scripting skills, I highly recommend giving OverTheWire's Bandit challenges a try. It's a fun and educational way to enhance your problem-solving abilities! Happy hacking! 🚀🔓 Feel free to connect if you have any questions or want to discuss more about these challenges! #CyberSecurity #BashScripting #Networking #ProblemSolving #OverTheWire #BanditChallenge #LearningByDoing #sakshamcodes

Pentesting Roadmap for Beginners: Get Started with Free Resources Step 1: Core Concepts You Must Know 1. Networking Basics Understanding how data flows through a network is critical for any pentester. Learn about IP addresses, TCP/IP, OSI model, subnets, and basic network protocols like DNS, HTTP, and FTP. - Free Course: Computer Networking Full Course by Neso Academy https://lnkd.in/dHQwQEMt 2. Linux Command Line & Scripting Familiarize yourself with Bash scripting and Linux commands. - Free Course: Linux for Beginners by FreeCodeCamp https://lnkd.in/deJcim7N 3. Web Application Security Learn about common vulnerabilities, including SQL injection, XSS, CSRF, and authentication flaws. - Free Course:OWASP Top 10 by The Cyber Mentor https://lnkd.in/dcPxNr_h 4. Understanding Vulnerabilities Get familiar with vulnerability assessment tools and scanning techniques, including CVE databases, Nmap, Nessus, and OpenVAS. - Free Course:Vulnerability Scanning with Nmap by John Hammond https://lnkd.in/d4EU2nB3 5. Password Cracking & Brute Force Attacks Learn about tools like John the Ripper, Hydra, and Hashcat. - Free Course:Password Cracking with John the Ripper https://lnkd.in/dFAs2nTb 6. Basic Exploitation Learn how to find and exploit vulnerabilities using tools like Metasploit, Exploit-DB, and Burp Suite. - Free Course:Metasploit for Beginners by Heath Adam https://lnkd.in/dR_SHK2s 7. Reverse Shells & Post-Exploitation Understanding reverse shells is crucial for gaining persistent access. Learn to use Netcat, PowerShell, and Python for crafting these techniques. - Free Course: Understanding Reverse Shells by Network Chuck https://lnkd.in/d246cAxR Step 2: Hands-on Practice with Platforms 1. TryHackMe https://tryhackme.com/ 2. Hack The Box (HTB) https://lnkd.in/d-zvvHGN 3. VulnHub - Find vulnerable virtual machines (VMs) that you can download and attack locally to practice your pentesting skills. https://www.vulnhub.com/ 4. CTFTime - A platform listing Capture The Flag (CTF) events where you can test your skills in competitions. https://ctftime.org/ Step 3: Resources for Continuous Learning 1. YouTube Channels - The Cyber Mentor - John Hammond– - LiveOverflow 2. Free Blogs & Writeups - HackTricks: - 0x00sec: A community for pentesters and red teamers to learn and share. 3. Books for Pentesting: - "The Web Application Hacker's Handbook" - "Metasploit: The Penetration Tester’s Guide" Essential Tools for Junior Pentesters : - Burp Suite - Wireshark - Nmap - Metasploit - Nikto With these resources, you'll be well on your way to becoming a skilled pentester. Happy learning and hacking! #Pentesting #Cybersecurity #EthicalHacking #CTF #RedTeam #Infosec #TryHackMe #HackTheBox #VulnHub #Linux #FreeResources

🚀 **Week 2 Learning Update: Advanced Threat Detection and System Monitoring** 🛡️ Another exciting week has flown by in the MYDFIR's 30-day SOC Analyst Challenge, with a deeper dive into advanced system monitoring and threat detection. Here's what I've tackled: 🔍 **Day 8-9**: Introduced to and installed Sysmon on Windows endpoints. This tool is critical for security monitoring, capturing detailed system activity for threat detection. The setup process involved configuring Sysmon with a custom XML from OLAF's GitHub, enhancing our ability to spot suspicious behaviours efficiently. 🖥️ **Day 10**: Integrated Sysmon and Windows Defender logs into Elasticsearch. I added custom event log integrations from the Kibana dashboard, specifically tuning the logs to capture the most relevant data for threat detection. 🔐 **Day 11-12**: Focused on detecting brute force attacks by monitoring failed login attempts on a newly spun-up Ubuntu 22.04 VM. This hands-on approach not only sharpened my skills in log analysis but also in using command-line tools like grep and cut to sift through the data. 💻 **Day 13-14**: Installed Elastic Agents on Linux and created Kibana dashboards for real-time monitoring. I set up alerts for specific security events, such as SSH authentication failures, and designed a geo-map dashboard to visualize the origins of access attempts. This challenge is shaping up to be an incredible journey of learning and application. I’m eager to see what the next week holds! MYDFIR #MYDFIRChallenge #CyberSecurity #SystemMonitoring #ThreatDetection #ELKStack #LearningJourney

https://lnkd.in/gsqRremZ "Grateful to my mentor, Akash Sir, for guiding me through the fundamentals of penetration testing with a hands-on walkthrough of the VulnHub Basic Pentesting 1 machine. A solid start for anyone entering cybersecurity!" Akash Naidu @razz security

Day 38/100 #100DaysofCybersecurity 🔍 LinPEAS: Automating Linux Privilege Escalation Enumeration 🔍 💡 What is LinPEAS? LinPEAS (Linux Privilege Escalation Awesome Script) is a part of the PEASS-ng suite that automates the detection of common privilege escalation paths. It’s widely used in penetration testing and red teaming engagements to uncover misconfigurations, outdated software, and other potential vulnerabilities in Linux environments. 🛠️ What Can LinPEAS Do? 1️⃣ Enumeration of System Information Kernel version, architecture, and patches. Identifies outdated or vulnerable kernels. 2️⃣ File and Permission Analysis SUID/SGID binaries that could be exploited. World-writable files and directories. Sensitive files like .bash_history or .ssh/ directories. 3️⃣ Credential and Sensitive Data Discovery Searches for passwords stored in configuration files or scripts. Detects insecure environment variables. 4️⃣ Service Misconfigurations Crontab jobs with weak permissions. Services running with root privileges. 5️⃣ Sudo Privileges Identifies commands that can be executed as root without a password. 6️⃣ Network Information Open ports, active connections, and potential pivoting opportunities. 📊 How Does LinPEAS Work? LinPEAS uses colorful outputs to highlight critical findings, making it easier for users to prioritize what needs attention. The results are categorized to aid quick identification of issues. 🔗 Quick Start Guide: ▪ Download LinPEAS from the PEASS-ng GitHub repository. ▪Transfer it to the target Linux machine (e.g., via SCP). ▪Run it with the command: ./linpeas.sh You’ll get a detailed report of potential vulnerabilities to investigate. 🌟 Why LinPEAS is Essential: ▪Speed: Saves hours of manual enumeration. ▪Comprehensiveness: Covers a wide range of checks across system files, configurations, and network settings. ▪Ease of Use: No complex setup or dependencies required. 🛑 Ethical Use Reminder: LinPEAS is a double-edged sword. It’s a powerful tool for understanding vulnerabilities, but always ensure you have proper authorization before using it on any system. Unethical use of such tools can lead to severe consequences.

Discover how to automate Nmap scans using a custom Bash script to streamline network security testing and enhance efficiency! 🚀 #Cybersecurity #Automation #Nmap #BashScripting https://lnkd.in/dyw-4Y3F

🔒 Join My Cyber Security BootCamp 🛡️ Introduction to Cybersecurity - Offensive and Defensive security 💻 How to Install Kali Linux on Your Computer 🐧 Master Linux From Basic to Advanced 🔍 Burpsuite For Web Application Pentesting 🎓 Master BurpSuite Professional in one lecture 🌐 Web Security - File Path Traversal Vulnerabilities - Information Disclosure - OS Command Injection - SSRF Vulnerabilities - File Upload Vulnerabilities 🔒 More Web Security - Access Control Vulnerabilities - Business Logic Vulnerabilities - Cross Site Scripting (XSS) 🔑 Diving into SQL and Automation - SQL Programming - SQL Injection Vulnerabilities - Automation Of Web Hacking 🔍 Exploring Other Vulnerabilities - XML Injection attack - Authentication Vulnerabilities - Reconnaissance 📆 Rest Modules - Vulnerabilities 101 - Mastering Metasploit framework - Linux Privilege Escalation https://lnkd.in/dbySrFev - CTF Based on Linux Hacking

CyberSecurity Study Guide🎯 📊 The Basics: -CIA Triad -Cybercrimes & Cyberattacks -OWASP Framework -OSINT (Open-Source Intelligence) -Recon, Scanning & Enumeration -Exploitation & Attacking Vectors -Privilege Escalation -Windows Active Directory -Exploit Dev & Payloads -Password Cracking Techniques (John the Ripper, Hashcat) -Web Application Security (XSS, SQLi, CSRF) 🛠️ Advanced: -Malwares, Rootkits, & Reverse Engineering -Pivoting and Persistence (Post Exploitation) -Bypassing AV & EDR Solutions -Threat Hunting Techniques -Buffer Overflows & Memory Corruption Attacks -Active Directory Enumeration & Attacks (Kerberos, Pass the Hash, etc.) -Code Injection Attacks (DLL Injection, Shellcode) 🐧 Linux: -Advanced Linux Permissions (setuid, setgid) -File System Forensics -Scripting with Bash -Kernel Exploits -Linux Hardening Techniques (SELinux, AppArmor) 🌐 Networking: -OSI Models -Network Topologies -Common Protocols (TCP/IP, UDP, ICMP, etc.) -Common Ports & Uses (HTTP, HTTPS, SSH, FTP, DNS) -IPv4 and IPv6 -Basics of Subnetting -Network Forensics (Packet Capture Analysis) -VPNs and Proxies -Firewall Architectures & Security -Understanding TCP/IP Handshakes & Packet Flow 💻 Programming Languages -Python -C/C++ -JavaScript -HTML -PowerShell Scripting for Windows Attacks ⚙️ Tools to Master -Nmap -BurpSuite -Wireshark -Metasploit -John the Ripper -Hashcat -Hydra -Active Directory Mapping -Empire Framework -Credential Dumping -Ghidra (Reverse Engineering) -Radare2 🖥️ Operating Systems: -Kali Linux -Parrot OS -Windows (For Windows attacks) -Ubuntu for Development 🎮 Playgrounds: -TryHackMe -HackTheBox -Cybrary -HackerOne (Bug Bounty) -PentesterLab -OverTheWire -CTFtime 📚 Resources (FREE): -Ethical Hacking in 15 Hours - The Cyber Mentor -Beginner to Advanced Bug Bounty - PHD Security -Wireshark Master Class - Chris Greer -The 50 Most Popular Linux & Terminal Commands - -FreeCodeCamp -Pentesting with Empire - SANS Free Courses -Learn Exploit Development - Corelan Blog -HackerSploit - Complete Ethical Hacking Series 💵 Resources (Paid): -TCM Academy - By far the best collection in one place -Getting Started with Wireshark (Udemy) - Chris Greer -The Complete NMAP Ethical Hacking Course (Udemy) - Nathan House -Web Hacking: Become a Professional Web PenTester (Udemy) - Geri Revay -Offensive Security Certified Professional (OSCP) Lab Access -Practical Ethical Hacking (TCM Security) 🏅 Certifications To Get: -eLearnSecurity Junior Penetration Tester (eJPT) -Certified Ethical Hacker (CEH) -CompTIA Security+ -CompTIA PenTest+ -Offensive Security Certified Professional (OSCP) -eLearnSecurity Certified Professional Penetration Tester (eCPPT) -GIAC Security Essentials (GSEC) -Certified Information Systems Security Professional (CISSP) 📋 Additional Subjects: -MITRE ATT&CK -NIST Framework (GRC) -ISO 27001 (GRC) -Risk Management & Compliance (SOC 2, PCI DSS) -Cybersecurity Governance -Incident Response & Threat Intelligence -DevSecOps Integration

𝗨𝗻𝗹𝗼𝗰𝗸𝗶𝗻𝗴 𝘁𝗵𝗲 𝗣𝗼𝘄𝗲𝗿 𝗼𝗳 𝗡𝗺𝗮𝗽 𝗦𝗰𝗿𝗶𝗽𝘁𝗶𝗻𝗴 𝗘𝗻𝗴𝗶𝗻𝗲 (𝗡𝗦𝗘) 𝗳𝗼𝗿 𝗕𝗲𝗴𝗶𝗻𝗻𝗲𝗿𝘀 If you're stepping into the world of cybersecurity 🛡️ or networking 🌐, you’ve probably heard of Nmap. But did you know Nmap can do WAY more than just port scanning? 🚀 Let me introduce you to the Nmap Scripting Engine (NSE)—your new best friend for automating tasks like vulnerability scanning, service discovery, and more! 🔍 👉 𝗪𝗵𝗮𝘁 𝗶𝘀 𝗡𝗦𝗘? NSE is a feature in Nmap that uses scripts to handle advanced tasks like: ✔️ Finding open ports ✔️ Detecting services ✔️ Checking for vulnerabilities Run it easily with: nmap --script <script-name> <target> ⚡ Types of Scripts You Can Use: NSE scripts are categorized into: 🔐 Auth: Handles authentication tasks 🕵️ Discovery: Finds services on the network 🛡️ Vuln: Detects vulnerabilities 💣 Exploit: Exploits vulnerabilities 📂 You can find these scripts here: Linux: /usr/share/nmap/scripts/ Windows: C:\Program Files (x86)\Nmap\scripts\ 🖋️ What Language Are NSE Scripts Written In? NSE scripts are powered by Lua, a lightweight programming language that’s easy to learn and beginner-friendly! 💡 How to Write Your Own Script: Want to create custom scripts? Here's a quick roadmap: 1️⃣ Define your script (name & purpose) 2️⃣ Write the action in Lua 3️⃣ Test it with Nmap Example: description = [[ A simple NSE script example ]] action = function(host) return "Hello, " .. host.ip end Run it with: nmap --script <your-script> <target> 🚀 With NSE, Nmap becomes a versatile tool for penetration testing, bug bounties, and network exploration. Start exploring, experimenting, and even creating your own scripts! Got questions? Let’s chat! 🗨️ #CyberSecurity #Nmap #Networking #EthicalHacking #Lua #Automation