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using await Task for Creating a Certificate

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This commit is contained in:
NYAN CAT 2019-06-12 17:37:56 +03:00
parent 4c90f1b85b
commit 5f12c859a6
4 changed files with 86 additions and 91 deletions
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1
AsyncRAT-C#/AsyncRAT-Sharp/AsyncRAT-Sharp.csproj
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@ -187,6 +187,7 @@
<Compile Include="Handle Packet\Packet.cs" />
<Compile Include="Handle Packet\HandleProcessManager.cs" />
<Compile Include="Helper\AsyncTask.cs" />
<Compile Include="Helper\CreateCertificate.cs" />
<Compile Include="Helper\IconInjector.cs" />
<Compile Include="Helper\ListViewColumnSorter.cs" />
<Compile Include="Helper\ListviewDoubleBuffer.cs" />

2
AsyncRAT-C#/AsyncRAT-Sharp/Forms/FormCertificate.Designer.cs generated
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@ -54,7 +54,7 @@
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(149, 39);
this.button1.TabIndex = 2;
this.button1.Text = "Ok";
this.button1.Text = "OK";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.Button1_Click);
//

107
AsyncRAT-C#/AsyncRAT-Sharp/Forms/FormCertificate.cs
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@ -1,16 +1,6 @@
using System;
using System.Threading.Tasks;
using System.Windows.Forms;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Crypto.Generators;
using Org.BouncyCastle.Crypto.Operators;
using Org.BouncyCastle.Crypto.Parameters;
using Org.BouncyCastle.Crypto.Prng;
using Org.BouncyCastle.Math;
using Org.BouncyCastle.Security;
using Org.BouncyCastle.X509;
using Org.BouncyCastle.X509.Extension;
using System.Security.Cryptography.X509Certificates;
using System.IO;
using System.IO.Compression;
@ -43,75 +33,7 @@ namespace AsyncRAT_Sharp.Forms
}
}
public static X509Certificate2 CreateCertificate(string certName, X509Certificate2 ca, int keyStrength)
{
// github.com/quasar/QuasarRAT/blob/master/Quasar.Server/Helper/CertificateHelper.cs
var caCert = DotNetUtilities.FromX509Certificate(ca);
var random = new SecureRandom(new CryptoApiRandomGenerator());
var keyPairGen = new RsaKeyPairGenerator();
keyPairGen.Init(new KeyGenerationParameters(random, keyStrength));
AsymmetricCipherKeyPair keyPair = keyPairGen.GenerateKeyPair();
var certificateGenerator = new X509V3CertificateGenerator();
var CN = new X509Name("CN=" + certName);
var SN = BigInteger.ProbablePrime(120, random);
certificateGenerator.SetSerialNumber(SN);
certificateGenerator.SetSubjectDN(CN);
certificateGenerator.SetIssuerDN(caCert.IssuerDN);
certificateGenerator.SetNotAfter(DateTime.MaxValue);
certificateGenerator.SetNotBefore(DateTime.UtcNow.Subtract(new TimeSpan(1, 0, 0, 0)));
certificateGenerator.SetPublicKey(keyPair.Public);
certificateGenerator.AddExtension(X509Extensions.SubjectKeyIdentifier, false, new SubjectKeyIdentifierStructure(keyPair.Public));
certificateGenerator.AddExtension(X509Extensions.AuthorityKeyIdentifier, false, new AuthorityKeyIdentifierStructure(caCert.GetPublicKey()));
var caKeyPair = DotNetUtilities.GetKeyPair(ca.PrivateKey);
ISignatureFactory signatureFactory = new Asn1SignatureFactory("SHA512WITHRSA", caKeyPair.Private, random);
var certificate = certificateGenerator.Generate(signatureFactory);
certificate.Verify(caCert.GetPublicKey());
var certificate2 = new X509Certificate2(DotNetUtilities.ToX509Certificate(certificate));
certificate2.PrivateKey = DotNetUtilities.ToRSA(keyPair.Private as RsaPrivateCrtKeyParameters);
return certificate2;
}
public static X509Certificate2 CreateCertificateAuthority(string caName, int keyStrength)
{
var random = new SecureRandom(new CryptoApiRandomGenerator());
var keyPairGen = new RsaKeyPairGenerator();
keyPairGen.Init(new KeyGenerationParameters(random, keyStrength));
AsymmetricCipherKeyPair keypair = keyPairGen.GenerateKeyPair();
var certificateGenerator = new X509V3CertificateGenerator();
var CN = new X509Name("CN=" + caName);
var SN = BigInteger.ProbablePrime(120, random);
certificateGenerator.SetSerialNumber(SN);
certificateGenerator.SetSubjectDN(CN);
certificateGenerator.SetIssuerDN(CN);
certificateGenerator.SetNotAfter(DateTime.MaxValue);
certificateGenerator.SetNotBefore(DateTime.UtcNow.Subtract(new TimeSpan(2, 0, 0, 0)));
certificateGenerator.SetPublicKey(keypair.Public);
certificateGenerator.AddExtension(X509Extensions.SubjectKeyIdentifier, false, new SubjectKeyIdentifierStructure(keypair.Public));
certificateGenerator.AddExtension(X509Extensions.BasicConstraints, true, new BasicConstraints(true));
ISignatureFactory signatureFactory = new Asn1SignatureFactory("SHA512WITHRSA", keypair.Private, random);
var certificate = certificateGenerator.Generate(signatureFactory);
var certificate2 = new X509Certificate2(DotNetUtilities.ToX509Certificate(certificate));
certificate2.PrivateKey = DotNetUtilities.ToRSA(keypair.Private as RsaPrivateCrtKeyParameters);
return certificate2;
}
private void Button1_Click(object sender, EventArgs e)
private async void Button1_Click(object sender, EventArgs e)
{
try
{
@ -119,18 +41,36 @@ namespace AsyncRAT_Sharp.Forms
button1.Text = "Please wait";
button1.Enabled = false;
textBox1.Enabled = false;
await Task.Run(() =>
{
try
{
string backup = Application.StartupPath + "\\BackupCertificate.zip";
Settings.ServerCertificate = CreateCertificateAuthority(textBox1.Text, 4096);
Settings.ServerCertificate = Helper.CreateCertificate.CreateCertificateAuthority(textBox1.Text, 4096);
File.WriteAllBytes(Settings.CertificatePath, Settings.ServerCertificate.Export(X509ContentType.Pkcs12));
using (ZipArchive archive = ZipFile.Open(backup, ZipArchiveMode.Create))
{
archive.CreateEntryFromFile(Settings.CertificatePath, Path.GetFileName(Settings.CertificatePath));
}
MessageBox.Show(this, "Created a ZIP backup (BackupCertificate.zip)", "Certificate backup", MessageBoxButtons.OK, MessageBoxIcon.Information);
MessageBox.Show(this, "If you want to use an updated version of AsyncRAT, remember to copy+paste your certificate", "Certificate backup", MessageBoxButtons.OK, MessageBoxIcon.Information);
Program.form1.listView1.BeginInvoke((MethodInvoker)(() =>
{
MessageBox.Show(this, "If you want to use an updated version of AsyncRAT, remember to copy+paste your certificate", "Certificate", MessageBoxButtons.OK, MessageBoxIcon.Information);
this.Close();
}));
}
catch (Exception ex)
{
Program.form1.listView1.BeginInvoke((MethodInvoker)(() =>
{
MessageBox.Show(this, ex.Message, "Certificate", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
button1.Text = "OK";
button1.Enabled = true;
textBox1.Enabled = true;
}));
}
});
}
catch (Exception ex)
{
@ -139,5 +79,6 @@ namespace AsyncRAT_Sharp.Forms
button1.Enabled = true;
}
}
}
}

53
AsyncRAT-C#/AsyncRAT-Sharp/Helper/CreateCertificate.cs Normal file
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@ -0,0 +1,53 @@
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Crypto.Generators;
using Org.BouncyCastle.Crypto.Operators;
using Org.BouncyCastle.Crypto.Parameters;
using Org.BouncyCastle.Crypto.Prng;
using Org.BouncyCastle.Math;
using Org.BouncyCastle.Security;
using Org.BouncyCastle.X509;
using Org.BouncyCastle.X509.Extension;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Threading.Tasks;
namespace AsyncRAT_Sharp.Helper
{
public static class CreateCertificate
{
public static X509Certificate2 CreateCertificateAuthority(string caName, int keyStrength)
{
var random = new SecureRandom(new CryptoApiRandomGenerator());
var keyPairGen = new RsaKeyPairGenerator();
keyPairGen.Init(new KeyGenerationParameters(random, keyStrength));
AsymmetricCipherKeyPair keypair = keyPairGen.GenerateKeyPair();
var certificateGenerator = new X509V3CertificateGenerator();
var CN = new X509Name("CN=" + caName);
var SN = BigInteger.ProbablePrime(120, random);
certificateGenerator.SetSerialNumber(SN);
certificateGenerator.SetSubjectDN(CN);
certificateGenerator.SetIssuerDN(CN);
certificateGenerator.SetNotAfter(DateTime.MaxValue);
certificateGenerator.SetNotBefore(DateTime.UtcNow.Subtract(new TimeSpan(2, 0, 0, 0)));
certificateGenerator.SetPublicKey(keypair.Public);
certificateGenerator.AddExtension(X509Extensions.SubjectKeyIdentifier, false, new SubjectKeyIdentifierStructure(keypair.Public));
certificateGenerator.AddExtension(X509Extensions.BasicConstraints, true, new BasicConstraints(true));
ISignatureFactory signatureFactory = new Asn1SignatureFactory("SHA512WITHRSA", keypair.Private, random);
var certificate = certificateGenerator.Generate(signatureFactory);
var certificate2 = new X509Certificate2(DotNetUtilities.ToX509Certificate(certificate));
certificate2.PrivateKey = DotNetUtilities.ToRSA(keypair.Private as RsaPrivateCrtKeyParameters);
return certificate2;
}
}
}