MalwareSourceCode/MSIL/Trojan-Ransom/Win32/B/Trojan-Ransom.Win32.Blocker.kkro-82cd479bb60c59525668e5016b400a8cc48f04b14a5c6cad5e2c6046b301e79d/SmartAssembly/Zip/AESCryptoIndirector.cs

// Decompiled with JetBrains decompiler
// Type: SmartAssembly.Zip.AESCryptoIndirector
// Assembly: WinData, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
// MVID: 162322D2-FE3A-45B9-99E4-3519564A1D4D
// Assembly location: C:\Users\Administrateur\Downloads\Virusshare.00004-msil\Trojan-Ransom.Win32.Blocker.kkro-82cd479bb60c59525668e5016b400a8cc48f04b14a5c6cad5e2c6046b301e79d.exe

using System;
using System.IO;
using System.Reflection;
using System.Security.Cryptography;

namespace SmartAssembly.Zip
{
  public sealed class AESCryptoIndirector : IDisposable
  {
    private readonly Type m_AcspType;
    private readonly object m_AESCryptoServiceProvider;

    public AESCryptoIndirector()
    {
      try
      {
        this.m_AcspType = Assembly.Load("System.Core, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e").GetType("System.Security.Cryptography.AesManaged");
      }
      catch (FileNotFoundException ex)
      {
        this.m_AcspType = Assembly.Load("mscorlib").GetType("System.Security.Cryptography.RijndaelManaged");
      }
      this.m_AESCryptoServiceProvider = Activator.CreateInstance(this.m_AcspType);
    }

    public ICryptoTransform GetAESCryptoTransform(
      byte[] key,
      byte[] iv,
      bool decrypt)
    {
      this.m_AcspType.GetProperty("Key").GetSetMethod().Invoke(this.m_AESCryptoServiceProvider, new object[1]
      {
        (object) key
      });
      this.m_AcspType.GetProperty("IV").GetSetMethod().Invoke(this.m_AESCryptoServiceProvider, new object[1]
      {
        (object) iv
      });
      return (ICryptoTransform) this.m_AcspType.GetMethod(decrypt ? "CreateDecryptor" : "CreateEncryptor", new Type[0]).Invoke(this.m_AESCryptoServiceProvider, new object[0]);
    }

    public void Clear() => this.m_AcspType.GetMethod(nameof (Clear)).Invoke(this.m_AESCryptoServiceProvider, new object[0]);

    public void Dispose() => this.Clear();
  }
}