Low Cost, Open Source Spectrum Monitoring presented at BSidesDenver 2017

by Michael Ossmann, Dominic Spill,

Summary : Monitoring the radio spectrum is an important way to keep track of wireless devices within an organization. Whether it's an unauthorized IoT device or an implant exfiltrating data, we want to keep an eye on RF devices within our infrastructure.
Over the past few months, we and other open source software developers have devised new tools allowing low cost Software Defined Radio platforms to rapidly sweep across radio frequencies in order to monitor the spectrum around us. Our base platform is HackRF One, and we are able to monitor 1 MHz to 6 GHz every 0.75 seconds, allowing us to build up a near real-time picture of radio usage around us.
Now we are looking at how we can interpret and analyze this information. Can we build tools that allow us to identify and profile signals around us to detect rogue devices and secure our environment?
This will be a look at open source hardware and software tools that enable us to monitor, analyze, and track down radio signals.

Michael Ossmann: Michael Ossmann is a wireless security researcher who has been obsessed with Bluetooth for much of the past three years. He founded Great Scott Gadgets in an effort to put new tools into the hands of smart people.