Wpa2 Handshake Capture Analysis And Alerting Tool — Complete Documentation & Simulation

Overview & System Context

Wpa2 Handshake Capture Analysis And Alerting Tool: Comprehensive Web-Sourced Technical Investigation Exhaustive Research Dossier · Pure Web-Scraped Content: ~1482 Words · Real Software Screenshots: 1 1. Executive Overview & Technical Background Authorization only. Every screenshot below comes from an authorized lab network ( Home_Lab ) owned/approved for coursework. Do not run these techniques against networks you do not have explicit written permission to test.

This post is the public write-up of our IT620/CS645 Stage 5 final report ( Automated Wireless Handshake Capture and Analysis System , December 2025). The open-source tooling lives in WPA2-AirHunt . Below is the full story — protocol background, architecture, lab evidence, and every terminal screenshot from the PDF. We built a client–server pipeline that automates the usual WPA2 lab workflow: scan → whitelist filter → deauthenticate → capture four-way handshake → validate → SFTP upload → server-side dictionary attack.

Manual Aircrack-ng workflows work, but they are slow and brittle: monitor mode, scan, target selection, deauth timing, capture validation, file transfer, and cracking config are all easy to mistype. Automation gives reproducibility for education and authorized assessments, while whitelist controls keep the scope honest. Figure 1: Video Demonstration & Practical Interface Overview The deeper motivation is the gap between WPA2’s strong primitives (AES-256, CCMP) and real-world password choice. Once an attacker has a complete four-way handshake, password testing is offline — no lockouts, no rate limits, no IDS noise from the crack itself.

The four-way handshake derives session keys from the Pairwise Master Key (PMK) without sending the password. Message 2’s MIC is computed from material derived from the PMK — so a captured handshake is enough to test password guesses offline. Capture happens on a portable Kali client; cracking happens on an Ubuntu analysis server. That split keeps field hardware light and lets the heavy wordlist work run where CPUs/GPUs live.

Isolation: dedicated lab AP, whitelist enforcement, faculty authorization, no production traffic in scope. Before capture, interfering network managers must die — otherwise injection and monitor mode flake out. airmon-ng check kill cleared seven dhcpcd processes: A short airodump pass saw 22 nearby networks (mostly WPA2-PSK, a couple WPA3-SAE). Whitelist logic selected only Home_Lab ( 94:10:3E:15:B4:09 , ch 5, −53 dBm) and ignored stronger unauthorized SSIDs.

Directed deauth against the associated station forced a reconnect so EAPOL frames would appear. Example manual command used against the lab AP/client pair: 2. System Architecture & Core Working Principles The automated client used broadcast deauth when no specific station was listed, waited through the capture window, forced process cleanup if needed, then validated: We first cracked offline with aircrack-ng against a large common-password wordlist to prove the .cap was complete (1 handshake + PMKID): Recovered material included the Master Key, Transient Key, and EAPOL HMAC — full compromise from a weak PSK despite solid protocol crypto.

After SFTP upload, the processing server detected the new capture and confirmed a valid handshake before queuing the crack job: First automated attempt failed because wordlists were configured under ./wordlists/ while the real files lived under /usr/share/wordlists/ . Manual cracking had already proved the capture was good — so we knew this was config, not crypto.

With paths corrected (December 6, 2025 run), the server converted the capture to Hashcat hc22000 , ran hashcat -m22000 , and recovered P@ssw0rd from rockyou about 36 seconds after detection: Testing stayed inside written course authorization, a dedicated lab SSID whitelist, and data-minimization practices (handshake/metadata only, encrypted SFTP, retention cleanup). The codebase is meant for education and authorized labs — not drive-by wireless abuse.

Advanced Wireless Security Auditing: WPA2 Handshake Analysis License: MIT Stars This repository provides a comprehensive technical breakdown of the 4-Way Handshake capture process. It is designed for cybersecurity researchers to understand the vulnerabilities in IEEE 802.11 networks. For educational purposes only; use on your own networks and comply with laws. Table of Contents Best Practices for Defense Prerequisites Installation and Usage Contributing References Architectural Workflow 1. RF Environment Initialization (Layer 1 & 2) Before capturing packets, the wireless interface must be decoupled from the OS networking stack.

The Problem: By default, interfaces operate in Managed Mode, filtering out any frames not addressed to their specific MAC. The Solution: Shifting to Monitor Mode allows the radio tap header to capture all 802.11 frames in the air regardless of the destination. 3. Software Implementation, Frameworks & Protocols Terminate interfering daemons (wpa_supplicant, NetworkManager) to prevent automated channel switching. sudo airmon-ng check kill Transition wlan0 to a virtual monitoring interface (wlan0mon). sudo airmon-ng start wlan0 2. Spectral Analysis & Reconnaissance Using airodump-ng, we perform a passive scan of the 2.4GHz or 5GHz spectrum.

Data/s: Indicates active traffic, essential for choosing a target with connected clients. 3. Targeted Frame Filtering Once a target is selected, we must lock the hardware's frequency (Channel) to avoid packet loss during hopping. Capture specific traffic and write to disk (.cap format) -c: Sets the fixed frequency channel.

4. The 4-Way Handshake Trigger (Deauthentication) The WPA/WPA2 4-Way Handshake occurs only when a client (Station) authenticates with an AP. To capture this without waiting for a new user, we use a Deauthentication Attack. How it works: We spoof the AP's MAC address and send "Deauth" frames to the client. The client is kicked off and immediately attempts a re-connection. The Prize: During the re-connection, the exchange of the MIC (Message Integrity Check) and Anonce/Snonce (random numbers used to generate keys) happens. We capture these encrypted values.

Execution of the Deauth frame injection -0: Specifies the deauthentication frame type. 5. Cryptographic Brute-Forcing (Offline Analysis) Now that we have the handshake saved in handshake_log-01.cap, we perform an offline dictionary attack. PBKDF2 Algorithm: WPA2 uses a heavy hashing algorithm. We take a word from our list, combine it with the SSID (Network Name), and run it through 4096 iterations of SHA-1. Matching: If our generated hash matches the one we captured from the air, the password is recovered.

4. Practical Deployment, Analysis & Case Studies Utilizing the RockYou wordlist for computational verification aircrack-ng -w /usr/share/wordlists/rockyou.txt handshake_log-01.cap Technical Reference Table Command Component: airmon-ng Logic: Driver Level Technical Purpose: Manages kernel-level drivers for monitor mode. Command Component: airodump-ng Logic: Packet Sniffer Technical Purpose: Captures raw 802.11 frames and extracts metadata. Command Component: aireplay-ng Logic: Packet Injector Technical Purpose: Generates and injects custom frames into the RF medium. Command Component: aircrack-ng Logic: Cryptanalysis Technical Purpose: Multi-threaded CPU/GPU cracker for WPA/WEP hashes. Best Practices for Defense To defend against the attacks demonstrated in this documentation: Use WPA3: It utilizes SAE (Simultaneous Authentication of Equals) which is immune to offline dictionary attacks. Complex Passwords: Ensure the PSK (Pre-Shared Key) is at least 12-15 characters with mixed symbols. Disable WPS: Wi-Fi Protected Setup is a common entry point for PIN-based brute-forcing.

Kali Linux or a compatible distribution. Monitor mode supported WiFi adapter (e.g., Atheros chipset). Aircrack-ng suite installed (sudo apt install aircrack-ng). Legal Disclaimer: These tools should only be used on your own networks for educational purposes. Any illegal use is your responsibility. "A hands-on penetration testing exercise demonstrating WPA2 vulnerability assessment and the limitations of dictionary attacks." This repository documents a controlled penetration testing exercise conducted on August 21, 2026 , to assess the security of a WPA2-PSK protected Wi-Fi network. The goal was to: Key Finding: While the handshake was successfully captured, the dictionary attack failed - proving that strong, non-dictionary passwords are an effective defense.

I ran a simulated WPA2 lab to better understand handshake captures and offline cracking implications. This post summarizes the non-actionable workflow, observations, and hardening guidance. 5. Performance Evaluation & Extended Technical Observations Objective: capture a WPA2 4-way handshake, analyze it, and test dictionary-based offline recovery to measure passphrase strength.

Observations: short or common passphrases were quickly tested; longer multi-word passphrases offered meaningful resistance. Recommended hardening: migrate to WPA3 where possible, adopt WPA2/WPA3-Enterprise for organizations, disable WPS, require AES/CCMP, segment networks, and maintain firmware/patch hygiene.

If you want a sanitized checklist or the repository with documentation and screenshot placeholders (no raw captures or keys), reply and I’ll share the repo link. This repository contains a technical Wireless Security Assessment Report conducted in a controlled laboratory environment. The objective was to evaluate the security posture of a WPA2-PSK secured wireless hotspot by performing active penetration testing, capturing network traffic, and analyzing cryptographic handshakes.

The assessment was executed using Kali Linux , a UGREEN AC650 wireless USB adapter , and the Aircrack-ng suite. The methodology followed a structured attack chain: The assessment identified 5 specific security vulnerabilities, evaluated via a Risk Matrix[cite: 12]: Actionable recommendations were provided to harden the wireless infrastructure[cite: 12]: Disclaimer: All attacks and traffic captures were strictly performed on an authorized personal hotspot within an academic sandbox environment.

A comprehensive wireless security assessment report demonstrating WPA2-PSK handshake capture, de-authentication attacks, and network vulnerability analysis. This project explores wireless security using a Raspberry Pi Zero W running Pawnagotchi , an open-source tool that captures WPA/WPA2 handshakes for offline analysis. I focused on understanding the 802.11/WPA2 protocol flow and applying ethical cracking techniques with Hashcat in a controlled lab environment.

Harvested Online Documentation & Reference Sources • https://gagg0ti.github.io/blog/automated-wpa2-handshake-capture.html • https://github.com/Cinar-ai/wpa2-handshake-audit • https://github.com/Bkibinge/WiFi-Handshake-Penetration-Test • https://dev.to/seifeldienahmad/wpa2-lab-walkthrough-capture-analyze-and-harden-simulated-only-2506 • https://github.com/okkb354/WPA2-WiFi-Penetration-Testing • https://www.alelopez.dev/projects/pawnagotchi