hcxdupcap: Real-Time WPA Handshake Capture & Cracking Toolkit

🔗 GitHub Repository: tfmbot/hcxdupcap

🔍 What This Tool Does

This Python-based script automates the full cycle of capturing WPA/WPA2 handshakes, extracting them, and optionally cracking them using hashcat. It’s built for Wi-Fi security audit…


This content originally appeared on DEV Community and was authored by Userbot

🔗 GitHub Repository: tfmbot/hcxdupcap

🔍 What This Tool Does

This Python-based script automates the full cycle of capturing WPA/WPA2 handshakes, extracting them, and optionally cracking them using hashcat. It's built for Wi-Fi security auditing and wraps around powerful existing tools.

⚙️ Workflow Summary

  1. Capture WPA Handshakes

    • Uses hcxdumptool to capture raw Wi-Fi traffic (.pcapng) from a selected wireless interface.

  2. Monitor .pcapng in Real Time

    • A watchdog process monitors the output file for changes.
    • When updated, it automatically runs hcxpcapngtool to extract WPA hashes.

  3. Parse and Log Handshakes

    • Extracted hashes are:
      • Saved to hash.hc22000 (for use with hashcat)
      • Logged with SSID info to SsidHash.txt
    • Duplicate hashes are skipped using a set of known hashes in memory.

  4. Check and Install Dependencies

    • Automatically checks for required tools: hcxdumptool, hcxpcapngtool, hashcat.
    • Installs missing ones using apt.

  5. Start Monitor Mode Automatically

    • Stops NetworkManager and wpa_supplicant before capture.
    • Restarts them safely after capture ends.

  6. Crack Captured WPA Hashes (Optional)

    • Offers to crack captured handshakes using hashcat and the rockyou.txt wordlist.
    • Attempts to find rockyou.txt or prompts to download it if not found.

🧠 Example Workflow 

sudo python3 hcxdupcap.py -i wlan0 -w mycapture.pcapng
  • Replace wlan0 with your Wi-Fi interface in monitor mode.
  • Default output is capture.pcapng.

📁 Output Files

File Description
capture.pcapng Raw capture from hcxdumptool
hash.hc22000 Extracted WPA hashes for hashcat
SsidHash.txt Readable log of hashes + SSIDs
passwordcracked.txt Output of cracked passwords

Use responsibly. 🔐


This content originally appeared on DEV Community and was authored by Userbot


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