MalwareSourceCode/MSIL/Trojan/Win32/P/Trojan.Win32.Patched.mf-9c4f7eb57e580673b883e57f31931bcbce8bd5d8de1a509a25b8b5a175335d9f/Services/RemoteServiceBase.cs

// Decompiled with JetBrains decompiler
// Type: Bmc.Services.RemoteServiceBase
// Assembly: updateservice, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null
// MVID: A6A1FC23-14F7-4CCE-B702-0F9FFD2CD5AC
// Assembly location: C:\Users\Administrateur\Downloads\Virusshare-00000-msil\Trojan.Win32.Patched.mf-9c4f7eb57e580673b883e57f31931bcbce8bd5d8de1a509a25b8b5a175335d9f.exe

using Bmc.Broker.Config;
using Bmc.RegistryAccess;
using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Tcp;
using System.ServiceProcess;

namespace Bmc.Services
{
  public class RemoteServiceBase : ServiceBase
  {
    private TcpServerChannel channel;
    private static Random portRandom = new Random();
    private static int MAX_PORT_TRIES = 5;

    private static int randomPort() => RemoteServiceBase.portRandom.Next(0, (int) ushort.MaxValue);

    protected void OnStart(FIELD portField, string uri, Type server)
    {
      string str = ConfigurationManager.Instance[portField];
      int port = str == null ? RemoteServiceBase.randomPort() : Convert.ToInt32(str);
      for (int index = 0; index < RemoteServiceBase.MAX_PORT_TRIES; ++index)
      {
        try
        {
          this.channel = new TcpServerChannel(port);
          if (port.ToString() != str)
          {
            ConfigurationManager.Instance[portField] = port.ToString();
            break;
          }
          break;
        }
        catch (Exception ex)
        {
          port = RemoteServiceBase.randomPort();
        }
      }
      if (this.channel == null)
        throw new Exception("initialization failed, could not find free port");
      ChannelServices.RegisterChannel((IChannel) this.channel);
      RemotingConfiguration.RegisterWellKnownServiceType(server, uri, WellKnownObjectMode.Singleton);
    }

    protected override void OnStop() => ChannelServices.UnregisterChannel((IChannel) this.channel);
  }
}