Monthly Archives January 2016

I have a guest writeup this week for the EFF-CTF we did. Welcome Steven who I worked with to solve the EFF-CTF this week which was part of Enigma 2016 security conference.  Take it away Steven: Level0x3 for the EFF-CTF required cracking homebrew crypto. The level was as follows: At first we tried "aaaa" as our input as a test.…

Great challenge! Connecting to the server seen we're given a challenge. This is a standard challenge/response scenario designed just to prevent rapid brute force attacks against the server. We solve it quickly with itertools and move forward to the real problem. Past the initial challenge response, we're given set of 40 lists of seven integers per list. Upon inspection of the…

Wanted to wait until after the winners announcements to post this, here's my writeups for the SANS Holiday Hack Challenge 2015! The challenge was a really fun one day sprint for me. I got started one afternoon after learning about the challenge. I focused on it until about 5am the next morning and wrapped up all the challenges. The challenge…

I've decided to start blogging my masters project early, I'm still in the planning phases since I'm not due to start it until closer to mid-2016 however my current thinking is the topic of realtime DNS data exfiltration and DGA C&C detection. This class of topics have been discussed in depth before, here's a good paper on the topic which…

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