Author:
RedXen

Language:
.NET

Upload:
11:26 AM 12/18/2021

Download

Platform
Windows

Difficulty:
2.8

Quality:
3.2

Arch:
x86-64

Description

This crackme is a fun one for anyone that likes passwords generated at runtime ;). Beware - the file is protected, so it may be flagged by some antiviruses. If you don't trust it, here's the source code: https://pastebin.com/rjZvy0Zb (Spoilers!). Have fun!

• Comments
• Solutions

KiwiBot on 7:16 PM 01/04/2022: Arch is x32

Real@Yeetret on 11:29 AM 01/23/2022: Firstly, Nothing is virtualized so its easily seen, Steps to unpack: #1. Debug and step through the first call on the initializer (module init) #2. Save file #3. Clean with my tool, https://github.com/Yeetret/DeMutation #4. Profit #5. Crack It (Unpacking but needed but yeah.) https://i.imgur.com/WMOfBPe.png - Get unpacked file: https://cdn.discordapp.com/attachments/853816009075720192/934771856555257876/CSharp_CrackMe2-demutate.exe - Virustotal of unpacked file: https://www.virustotal.com/gui/file/c773db47755cc9d6d613a72a8c50ba16de6236166177e472ad4b65b608c56580?nocache=1

as06zx on 1:33 AM 01/29/2022: dump and see how it make pw. pw = pw + ((int)id[i]).toString()

Jak_3 on 3:12 PM 02/18/2022: Hi! It seems like no-one bothered to make a keygen for this program. Personally, I did it! Enjoy. PS: A lot of code is copied from the deobfuscated program, e.g. Key gen algorithm DL: https://cdn.discordapp.com/attachments/939209339376369719/944249819759775835/Keygen.rar VT: https://www.virustotal.com/gui/file-analysis/NDQ0M2Y5OTM3YWFlZjdjNzViNWI5NDMyYzhhMDRjN2M6MTY0NTE5NzEyMg==

sunnamed on 9:35 AM 03/25/2022: easy in 5 min. pass: 1041119898105116 result was: Well done! Submit your solution on the crackmes.one website!

rrenamed on 6:39 PM 04/07/2022: Fully deobfuscated and "keygenned": VT - https://www.virustotal.com/gui/file/ee438d6345b68b67f151f9492f3c4124f88ee508bd58770630d323db1212264a/detection DL - https://cdn.discordapp.com/attachments/779466216955707452/961693130141335662/CSharp_CrackMe_pass.exe

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