Going to DEF CON was a dream I never thought would come to fruition. I remember 2009 being in 8th grade. Reading a physical copy of the magazine Wired. Sitting in the back of parent's minivan on the way to visit family in Milwaukee, WI, and seeing pictures and reading about the largest hacking conference in the world. There were hackers getting arrested, voting machine hacking, lock picking, and hacker jeopardy. That dream came true in 2016 at DEF CON 24.

At DEF CON 31 I returned to speak at the Hardware Hacking Village. My first time speaking at DEF CON was full of anxiety, as the Sunday before flying out I was testing the hardware and I found out I ordered the ESP-01 and not the ESP-01S. I was up until 1 AM trying to get it to work anyway, but ended up putting in a last minute Amazon order (at twice the price of AliExpress) to get the ESP-01S's I needed. Thankfully the Amazon delivery arrived that Tuesday and we flew out Wednesday evening.

My talk (Introduction To Esp8266/Esp32 Microcontrollers And Building A Wi-Fi Deauthentication Detector):

TL;DR of my talk:

Slides are available here: https://twitter.com/TheL0singEdge/status/1690142545605791752

Lesson's Learned:

DEF CON 31 Tool Highlights:

#Badgelife
#Badgelife
The ESP-01S's were pre-flashed to light up the LED when a deauthentication attack is detected:
I picked up this awesome ESP32 based Wardrivers:
I attended the greatest hacker game show in history: Hacker Jeopardy:
The sticker wall:

References:
https://media.defcon.org
https://www.flickr.com/photos/r6_cannibal/albums/72177720310525638/
https://twitter.com/search?q=%23defcon

What is a Pwnagotchi?

From the Website:

Pwnagotchi is an A2C-based “AI” powered by bettercap and running on a Raspberry Pi Zero W that learns from its surrounding WiFi environment in order to maximize the crackable WPA key material it captures (either through passive sniffing or by performing deauthentication and association attacks). This material is collected on disk as PCAP files containing any form of handshake supported by hashcat, including full and half WPA handshakes as well as PMKIDs.

https://pwnagotchi.ai/intro/
Sound Familiar?

In case you're curious about the name: Pwnagotchi (ポーナゴッチ) is a portmanteau of pwn and -gotchi. It is a nostalgic reference made in homage to a very popular children's toy from the 1990s called the Tamagotchi. The Tamagotchi (たまごっち, derived from tamago (たまご) "egg" + uotchi (ウオッチ) "watch") is a cultural touchstone for many Millennial hackers as a formative electronic toy from our collective childhoods.

Cost

Notes

Unboxing

Side B

Flashing an Image

From https://pwnagotchi.ai/installation/#flashing-an-image:

The easiest way to create a new Pwnagotchi is downloading the latest stable image from our release page and writing it to your SD card.

Once you have downloaded the latest Pwnagotchi image, you will need to use an image writing tool to install that image on your SD card. We recommend using balenaEtcher, a graphical SD card writing tool that works on Mac OS, Linux, and Windows; it is the easiest option for most users. (balenaEtcher also supports writing images directly from the ZIP file, without any unzipping required!)

To write your Pwnagotchi image with balenaEtcher:

As an alternative you can use dd on GNU/Linux or macOS:

Change the path to your image file, /dev/sdcard is the path to you SD card device.dd if=path/to/pwnagotchi-raspbian-lite-XXX.img of=/dev/sdcard bs=1M

Wait before removing the SD card as you will need to create one last file on it with the initial configuration.

https://pwnagotchi.ai/installation

Connect Your USB Micro to the Data Port and Wait for the Pwnagotchi to Boot

Configure Your Newly Found Ethernet Adapter

Connect to the Terminal via Putty

Words of Caution

Example Config

Edit the config located in /etc/pwnagotchi/config.yml, restart, and you should be good-to-go.

# Add your configuration overrides on this file any configuration changes done to default.yml will be lost!
# Example:
#
# ui:
#   display:
#     type: 'inkyphat'
#     color: 'black'
#
main:
  name: '<NAMEOFPWNAGOTCHI>'
  whitelist:
    - '<YOURNETWORK>'
  plugins:
    grid:
      enabled: false
      report: false
      exclude:
        - '<YOURNETWORK>'
ui:
    display:
      enabled: true
      type: 'waveshare_2'
      color: 'black'
    web:
        username: pi
        password: <YOURPASSWORD>

Anatomy of a Pwnagotchi Screen (https://pwnagotchi.ai/usage)

Completed Build

References

- @TheL0singEdge

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