Posted on March 18, 2017
| 7 minutes
| Alessandro Gario
The diary of a small expedition my old friend Raspberry and I have undertaken, exploring the ARM challenge called ‘disarming’ from the BSides San Francisco CTF 2017.
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Posted on November 3, 2016
| 12 minutes
| Alessandro Gario
A tour in the depths of the SmokeStack level of the third Flare On Challenge from FireEye. The article also covers the internals of the virtual machine used by the binary, presenting a simple command line disassembler written in C++.
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Posted on April 13, 2016
| 6 minutes
| Alessandro Gario
This is the writeup for another challenge from the VolgaCTF 2016 Quals; the task consists in analyzing a binary executable that encrypts files and find a way to recover the clear text from an encoded file. The article also includes a working implementation for a compatible encoder and decoder written in C++.
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