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Custom EXE Protection CrackMe Test

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Hello everyone

I have been developing my own EXE protection and encryption system for a long time
Taking inspiration from solutions like VMProtect and Themida I am trying to build a structure that includes various security layers such as packer encryption obfuscation anti dump and more

To test this work and identify its shortcomings I prepared a small test EXE
The application is a simple program that asks for a license key and your goal is to crack this application and gain access

I encrypted and protected this test application using the protection system I developed

Download link
https://dosya.co/x5e4xyewg94d/CrackMe.exe.html

VirusTotal analysis
https://www.virustotal.com/gui/url-analysis/u-a65e75a253a80ae0a2ef0e23a218db163333faf2ce84401f76168cb764444c2a-a6822794

I kindly ask you to analyze it using reverse engineering techniques and try to break it and if possible share with me

The parts you found difficult
The weaknesses you found easy
The strong and weak points of the protection

My goal is purely to learn see my mistakes and make the system more robust

For experienced experts it may be a simple application please excuse that in advance
I hope it will be an educational exercise for beginners and intermediate level users

Thank you in advance to everyone who participates
Good luck to all

  • Author

I guess nobody wants to help )

16 hours ago, Beyoglu said:

I have been developing my own EXE protection and encryption system for a long time

I encrypted and protected this test application using the protection system I developed

There is absolutely nothing encrypted, virtualized, or obfuscated in the exe.

private void BtnCheck_Click([Nullable(2)] object sender, EventArgs e)
{
	if (this.txtLicenseKey.Text.Trim() == "QUJU-329D-4936-GSBW-AVSK-U8")
	{
		base.Hide();
		new SuccessForm().Show();
		return;
	}
	MessageBox.Show("Invalid License Key!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Hand);
}

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