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README.md

cracknet

A .net Crackme Challenge made for the SecTalks Brisbane 2017 CTF Event.

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Intended binary for challenge: https://github.com/codingo/cracknet/blob/master/ctf.sectalks_bne.crackme/bin/Debug/cracknet.exe

Note that this is a debug build and not a release build, due to compiler instructions. Only the executable needs to be included for the challenge.

Source Code Notes

Built with v4.5.2 of .Net (https://www.microsoft.com/en-au/download/details.aspx?id=42642)

Writeup / Solution

A writeup explaining one solution path for this binary can be found here: https://codingo.github.io/reverse-engineering/ctf/2017/07/25/Decompiling-CSharp-By-Example-with-Cracknet.html

Further solution notes (including alternative ways to solve this) can be found as code comments within Program.cs.

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