0X7C9 Posted April 18, 2018 Share Posted April 18, 2018 Difficulty : 4 (Maybe 5) Language : NET 2.0 Platform : Windows x32/x64 OS Version : Windows 7,8,10 (All windows with .NET Framework 2) Packer / Protector : Crypto obfuscator (only strings, names and all types to non-printable) > ConfuserFx (Anti ildasm, anti tamper, anti dump, anti debug) Description: Greetings to the Tuts4You community. I wrote a CrackMe in C #. I used two protection programs on it. I made it more difficult because the previous one was easy. In this case, the password can be retrieved and not encrypted. Get the long license key and post. Write a simple tutorial how you did it. But you can not modify the program to display the MessageBox of success. Eddy420 (I'm sorry for English, I'm Czech) Screenshot: Dowload CrackMe[!Eddy420].zip Link to comment Share on other sites More sharing options...
Abigor Posted April 18, 2018 Share Posted April 18, 2018 Real dif = 1 Key: Spoiler AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F62AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FfaAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F32AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F2AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fc5AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F8AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F1AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F79AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F62AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F93AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fd1AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F59AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F89AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FfdAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F62AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F3fAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F38AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F14AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Ff5AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F41AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F4aAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F35AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F14AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FdcAS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F1AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F7AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F95AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fe4AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-FeAS-5EFX-12AS-5-FAS-5EFX-12AS-5-Ff1AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F82AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F19AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F42AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FbaAS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fc2AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fc9AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Ff6AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F44AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fb9AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F9aAS-5EFX-12AS-5-FAS-5EFX-12AS-5-Ff7AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F31AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F41AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FcbAS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fc7AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F2AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fa1AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F6dAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F9bAS-5EFX-12AS-5-FAS-5EFX-12AS-5-Ff7AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F81AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fc8AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F9dAS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fa2AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F3eAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F35AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fd5AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F21AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F3AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fa1AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F19AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F4AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F14AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F9d 1 Link to comment Share on other sites More sharing options...
Solution GautamGreat Posted April 18, 2018 Solution Share Posted April 18, 2018 Encryption is so poor. It's unmodified ConfuserEx right? Quote AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F62AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FfaAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F32AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F2AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fc5AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F8AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F1AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F79AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F62AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F93AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fd1AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F59AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F89AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FfdAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F62AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F3fAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F38AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F14AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Ff5AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F41AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F4aAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F35AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F14AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FdcAS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F1AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F7AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F95AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fe4AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-FeAS-5EFX-12AS-5-FAS-5EFX-12AS-5-Ff1AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F82AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F19AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F42AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FbaAS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fc2AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fc9AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Ff6AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F44AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fb9AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F9aAS-5EFX-12AS-5-FAS-5EFX-12AS-5-Ff7AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F31AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F41AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FcbAS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fc7AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F2AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fa1AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F6dAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F9bAS-5EFX-12AS-5-FAS-5EFX-12AS-5-Ff7AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F81AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fc8AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F9dAS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fa2AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F3eAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F35AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fd5AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F21AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F3AS-5EFX-12AS-5-FAS-5EFX-12AS-5-Fa1AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F19AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F4AS-5EFX-12AS-5-FAS-5EFX-12AS-5-FAS-5EFX-12AS-5-F14AS-5EFX-12AS-5-FAS-5EFX-12AS-5-F9d Serial number checking procedure Quote // Ui.Form1 // Token: 0x0600000D RID: 13 RVA: 0x00002B1C File Offset: 0x00002B1C private void button1_Click(object sender, EventArgs e) { long num = (long)((ulong)(Form1.num1 - Form1.num2 - Form1.num3 - Form1.num4 - Form1.num5 - Form1.num6 - Form1.num7)); if (!(this.textBox1.Text == string.Empty)) { for (;;) { switch (2) { case 0: continue; } break; } if (!true) { RuntimeMethodHandle runtimeMethodHandle = methodof(Form1.button1_Click(object, EventArgs)).MethodHandle; } if (num < (long)\u0003.\u0001(36)) { for (;;) { switch (3) { case 0: continue; } break; } } else { this.computedPwd(); if (Form1.LIC == this.textBox1.Text) { for (;;) { switch (6) { case 0: continue; } break; } MessageBox.Show(\u0002.\u0001(230), \u0002.\u0001(446), (MessageBoxButtons)\u0003.\u0001(48), (MessageBoxIcon)\u0003.\u0001(52)); return; } Form1.cntTry += \u0003.\u0001(56); if (Form1.cntTry == \u0003.\u0001(60)) { for (;;) { switch (2) { case 0: continue; } break; } this.textBox1.Enabled = (\u0003.\u0001(64) != 0); MessageBox.Show(\u0002.\u0001(489), \u0002.\u0001(534), (MessageBoxButtons)\u0003.\u0001(68), (MessageBoxIcon)\u0003.\u0001(72)); return; } MessageBox.Show(\u0002.\u0001(567) + Form1.cntTry + \u0002.\u0001(592), \u0002.\u0001(639), (MessageBoxButtons)\u0003.\u0001(76), (MessageBoxIcon)\u0003.\u0001(80)); return; } } MessageBox.Show(\u0002.\u0001(144), \u0002.\u0001(195), (MessageBoxButtons)\u0003.\u0001(40), (MessageBoxIcon)\u0003.\u0001(44)); } Link to comment Share on other sites More sharing options...
0X7C9 Posted April 18, 2018 Author Share Posted April 18, 2018 2 hours ago, GautamGreat said: Encryption is so poor. It's unmodified ConfuserEx right? Serial number checking procedure Good work on my crackMe, you know! How did you get this il code? Did you use a specific program? Write procedure step by step. Thank you Link to comment Share on other sites More sharing options...
bb2018 Posted April 23, 2018 Share Posted April 23, 2018 I'm tried debug on dnspy . Link to comment Share on other sites More sharing options...
NightBullet Posted April 27, 2018 Share Posted April 27, 2018 Just use ConfuserEx Anti Tamper remover & de4dot Link to comment Share on other sites More sharing options...
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