Monthly Archives: November 2016

Arch Linux Install Guide For EFI Systems

Because nobody seems to know how to actually install Arch, here’s a brief guide. Setup: You need a machine to install Arch on. You also need a version of the Arch installation disk on some bootable medium. You can see … Continue reading

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CSAW Finals 2016 – Cookie Math (250)

We are given a binary that does some math. The program checks a 30 byte string and some things are XOR’d while some are not. We solve this by doing some math. We can get a list of potential XOR … Continue reading

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CSAW Finals 2016 – LINQ To The Present (100)

We are presented with a .NET binary, and the hint says that we should consider this being run under Mono in a linux system. We disassemble the program using MonoDevelop and get: So we can do very SQL-ish things here … Continue reading

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