Software defined radio and the hacker


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This is a quick overview of my initial delving into SDR from a pen testing perspective. It is admittedly very basic and introductory - I hope to expand the talk quite a bit over the coming months.

Presented at CodeMash, January 8, 2014

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Software defined radio and the hacker

  1. 1. Software Defined Radio and the Hacker Rob Gillen @argodev This work is licensed under a Creative Commons Attribution 3.0 License.
  2. 2. Don’t Be Stupid The following presentation describes real attacks on real systems. Please note that most of the attacks described would be considered ILLEGAL if attempted on machines that you do not have explicit permission to test and attack. I assume no responsibility for any actions you perform based on the content of this presentation or subsequent conversations. Please remember this basic guideline: With knowledge comes responsibility.
  3. 3. Disclaimer The content of this presentation represents my personal views and thoughts at the present time. This content is not endorsed by, or representative in any way of my employer nor is it intended to be a view into my work or a reflection on the type of work that I or my group performs. It is simply a hobby and personal interest and should be considered as such.
  4. 4. Definition Software-defined radio (SDR) is a radio communication system where components that have been typically implemented in hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented by means of software on a personal computer or embedded system.[1] While the concept of SDR is not new, the rapidly evolving capabilities of digital electronics render practical many processes which used to be only theoretically possible.
  5. 5. Simple Starting Kit
  6. 6. Slightly more advanced
  7. 7. And Another…
  8. 8. DEMO: Expensive FM Radio
  9. 9. Why do I care? • Everything emits a signal • You may be emitting a signal I can learn something from • Noise Floor Exploration
  10. 10. Listening in… • What
  11. 11. How to Make a $19 Police Radio Scanner
  12. 12. What can I Do? • Spectrum Analysis • Wireless Signal Injection • OpenBTS • OpenLTE • SCADA • Infrastructure (Microwave comms)
  13. 13. Watch it live… •
  14. 14. Wait… can you listen to me?
  15. 15. Prevention?
  16. 16. Resources • • • •
  17. 17. Questions/Contact Rob Gillen @argodev