https://github.com/codingo/cracknet
A .net Crackme Challenge made for the SecTalks Brisbane 2017 Capture the Flag Event. Writeup/solution included.
https://github.com/codingo/cracknet
capture-the-flag challenge challenges ctf ctf-challenges ctf-solutions ctf-writeups decompile ida radare2 reverse-engineering security vulnerable vulnerable-application writeup
Last synced: 2 months ago
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A .net Crackme Challenge made for the SecTalks Brisbane 2017 Capture the Flag Event. Writeup/solution included.
- Host: GitHub
- URL: https://github.com/codingo/cracknet
- Owner: codingo
- License: mit
- Created: 2017-04-10T04:38:41.000Z (about 8 years ago)
- Default Branch: master
- Last Pushed: 2017-10-02T22:42:39.000Z (over 7 years ago)
- Last Synced: 2025-04-20T09:59:18.519Z (2 months ago)
- Topics: capture-the-flag, challenge, challenges, ctf, ctf-challenges, ctf-solutions, ctf-writeups, decompile, ida, radare2, reverse-engineering, security, vulnerable, vulnerable-application, writeup
- Language: C#
- Homepage: https://www.codingo.com.au
- Size: 162 KB
- Stars: 23
- Watchers: 9
- Forks: 11
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# cracknet
A .net Crackme Challenge made for the SecTalks Brisbane 2017 CTF Event.[](https://twitter.com/codingo_)
***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__.