Can you Trick the Machine for a Ticket

BSides wouldn't be BSides without challenges!
Last year one challenge remained unsolved but is now solved; we've left on the page for anyone who wants to give it a try! We will be releasing a set of new challenges visit this page regularly to catch one.

Do you think you have what it takes to hack your way through, learn somthing new and possibly win one of a number of excellent prizes?
Go forth, hack, and send us you writeup!

The Rules of the Game:

  1. All submissions are to be submitted as per the challenge instructions.
  2. Submissions must be sent in by 20 MAY 2019 or the date listed on the challenge page.
  3. Hints are only available if the creator deems you worthy provides them.
  4. Hints can be requested via the challenges team email listed above.
  5. The challenge creator is the boss, s/he decides the best winner.
  6. Prizes will be awarded on the day, unless they come in the form of tickets etc.

The BSidesLondon Team wants to thank all those who helped with the challenges and the fantastic prizes.

Thanks to Sophos for providing supporting infrastructure for the challenges


Challenge DS-2018

We are pleased to present this challenge courtesy of the ever inventive Didier Stevens. If you have not already heard of him, you should take a few moments to check out his excellent blog, where you can find a dizzying array of analysis tools, tips, and tricks.

Look at the picture & look inside the picture.

Please send your answers to challenges2019 at with subject set to "Challenge DS-2018 Solution". Bonus point for those who provide a breakdown of the solution.

This challenge is solved!