Author:
RedXen

Language:
.NET

Upload:
11:04 AM 03/28/2023

Download

Platform
Windows

Difficulty:
1.5

Quality:
4.2

Arch:
x86-64

Description

This CrackMe is meant to be similar to a real-world license activation system - just for a bit of fun! :). Hope you enjoy it. Rules: YOU MUST MAKE A KEYGEN. PATCHING IS NOT ALLOWED. GOOD LUCK!

• Comments
• Solutions

Sm0key on 3:43 PM 03/30/2023: https://pastebin.com/Saj9g0fq

Sm0key on 3:59 PM 03/30/2023: only crack Login:Crack Password:13D9F-1E42A-C5655

pavler on 6:12 PM 04/01/2023: using System; using System.Security.Cryptography; using System.Text; namespace Genuine_License_Service { class Program { static void Main(string[] args) { Console.Write("username: "); string username = Console.ReadLine(); string licenseKey = GenerateSerialKey(username); Console.WriteLine("ur key : " + licenseKey); Console.ReadKey(); } private static string GenerateSerialKey(string username) { byte[] hash = ComputeHash(username); string key = BitConverter.ToString(hash) .Replace("-", "") .Substring(0, 15) .Insert(5, "-") .Insert(11, "-"); return key; } private static byte[] ComputeHash(string input) { using (SHA256 shA256 = SHA256.Create()) { byte[] bytes = Encoding.UTF8.GetBytes(input); return shA256.ComputeHash(bytes); } } } }

Arkanwhtp on 8:09 AM 04/13/2023: Nice crackme Decision: https://pastebin.com/NtrQgxRY

lylcrackmes on 7:40 AM 04/15/2023: Nice

byclone on 9:05 PM 04/15/2023: UserName : ByClone License Key : 2D7CA-0F9C4-56FBA

Oxygen6 on 10:50 PM 04/16/2023: My keygen: https://pastebin.com/raw/wnAPgykn

Fire_Jasper770 on 5:52 PM 04/28/2023: Simple solution is using dnspy go to activation failed and change MessageBox.Show("Software activation failed. Invalid license key.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Hand); to MessageBox.Show(LicenseManager.GenerateSerialKey(this.userNameTextBox.Text), "Error", MessageBoxButtons.OK, MessageBoxIcon.Hand); it is just changing to error message "Software activation failed. Invalid license key." to LicenseManager.GenerateSerialKey(this.userNameTextBox.Text) which generates a key for the specified username

Tyfo on 9:12 AM 05/24/2023: Keygen code - https://pastebin.com/9pLdriR4 Link password - crackmes.one

DZghost on 11:04 AM 06/10/2023: very easy; Username : dzghost Password : 05DB3-1C3BB-D6710

bang1338 on 1:52 PM 08/11/2023: solved!

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