alexeinazarov/Environment_for_Monitoring_WhatsApp.md

## Environment_for_Monitoring_WhatsApp.md

      
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              Environment_for_Monitoring_WhatsApp.md
            
          
    Comprehensive Environment Installation Guide for Monitoring WhatsApp Activities

This guide provides a detailed setup process for students to monitor various activities within WhatsApp, including audio, video, contacts, cookies, and other data interactions. The setup involves using dynamic instrumentation tools like Frida, filesystem monitoring tools like inotifywait, and network traffic monitoring tools like mitmproxy and Wireshark.
Prerequisites


A Linux host machine
Android Studio or Genymotion for Android emulation
Rooted Android emulator for advanced monitoring (optional)
Basic knowledge of Android development and Linux command-line tools

Tools and Software


Frida: For dynamic instrumentation
inotifywait: For filesystem monitoring
mitmproxy: For intercepting and analyzing HTTPS traffic
Wireshark: For capturing and analyzing network traffic
adb: Android Debug Bridge for emulator configuration

Part 1: Monitoring Audio, Video, and Contacts Activity

Step 1: Setting Up the Android Emulator


Install Android Studio:

Download and install Android Studio from the official website.
Create a new Android Virtual Device (AVD) with the desired specifications.


Root the Emulator (Optional for Advanced Monitoring):

Rooting the emulator can provide more control and access to system files.
Follow a guide such as How to Root Android Emulator for detailed steps.


Step 2: Installing and Configuring Frida


Install Frida on the Linux Host:
pip install frida-tools


Download the Frida Server:

Download the appropriate Frida server binary from the Frida releases page.


Push the Frida Server to the Emulator:
adb push frida-server /data/local/tmp/
adb shell "chmod 755 /data/local/tmp/frida-server"
adb shell "/data/local/tmp/frida-server &"


Write Frida Scripts to Monitor Audio, Video, and Contacts:
Java.perform(function() {
  // Hooking into audio methods
  var MediaRecorder = Java.use('android.media.MediaRecorder');
  MediaRecorder.start.implementation = function() {
    console.log('MediaRecorder started');
    this.start();
  };

  // Hooking into video methods
  var Camera = Java.use('android.hardware.Camera');
  Camera.startPreview.implementation = function() {
    console.log('Camera preview started');
    this.startPreview();
  };

  // Hooking into contacts access
  var ContentResolver = Java.use('android.content.ContentResolver');
  ContentResolver.query.overload('android.net.Uri', '[Ljava.lang.String;', 'android.os.Bundle', 'android.os.CancellationSignal').implementation = function(uri, projection, queryArgs, cancellationSignal) {
    console.log('Contacts accessed:', uri);
    return this.query(uri, projection, queryArgs, cancellationSignal);
  };
});


Run the Frida Script:
frida -U -f com.whatsapp -l your_script.js --no-pause


Step 3: Monitoring Filesystem with inotifywait


Install inotify-tools on Linux:
sudo apt-get install inotify-tools


Monitor WhatsApp's Data Directory:
inotifywait -m -r -e access,modify,create,delete /data/data/com.whatsapp/


Script for Real-Time Logging:
#!/bin/bash

# Directory to monitor
DIR="/data/data/com.whatsapp/"

# Log file to store inotify events
LOGFILE="/var/log/whatsapp_data_monitor.log"

# Run inotifywait and log events
inotifywait -m -r -e access,modify,create,delete $DIR --format '%w%f %e' |
while read FILE EVENT; do
    echo "$(date) - $EVENT - $FILE" >> "$LOGFILE"
done


Part 2: Monitoring All Other Activities (Cookies, Data Transfers, etc.)

Step 1: Using Mitmproxy to Monitor Network Traffic


Install mitmproxy on Linux:
sudo apt-get install mitmproxy


Start mitmproxy:
mitmproxy -p 8080


Configure the Emulator to Use mitmproxy:
adb shell settings put global http_proxy <host_ip>:8080


Install the mitmproxy Certificate on the Emulator:

Transfer the certificate:
adb push ~/.mitmproxy/mitmproxy-ca-cert.pem /sdcard/Download/

Install the certificate from the emulator's settings.


Step 2: Capturing and Analyzing Traffic with Wireshark


Install Wireshark on Linux:
sudo apt-get install wireshark


Start Wireshark and Select the Network Interface:

Capture traffic on the network interface used by the emulator (e.g., vboxnet0 for VirtualBox).


Set Up Capture Filters:
tcp.port == 8080


Step 3: Using Frida for Additional Monitoring


Write Frida Scripts for Monitoring Cookies and Data Transfers:
Java.perform(function() {
  // Hooking into cookie methods
  var CookieManager = Java.use('android.webkit.CookieManager');
  CookieManager.getInstance().setCookie.overload('java.lang.String', 'java.lang.String').implementation = function(url, value) {
    console.log('Cookie set - URL:', url, 'Value:', value);
    return this.setCookie(url, value);
  };

  // Hooking into database access methods
  var SQLiteDatabase = Java.use('android.database.sqlite.SQLiteDatabase');
  SQLiteDatabase.execSQL.overload('java.lang.String').implementation = function(sql) {
    console.log('SQL executed:', sql);
    return this.execSQL(sql);
  };
});


Run the Frida Script:
frida -U -f com.whatsapp -l your_script.js --no-pause


Additional Methods and Options


TrackerControl:

Installation: Download TrackerControl from the GitHub page.
Functionality: Monitor which tracking domains are contacted by WhatsApp and other apps.


Real-Time Alerts:

Webhook Integration: Configure inotifywait or Frida scripts to trigger webhooks that notify a monitoring service when specific events are logged.
Monitoring Dashboard: Use tools like Grafana to visualize and set alerts for monitored events.


References


Frida Documentation
inotify-tools Documentation
TrackerControl on GitHub
Mitmproxy Documentation
Wireshark Documentation

By following this comprehensive guide, students can set up an environment to monitor various activities within WhatsApp, including audio, video, contacts, cookies, and other data interactions. This setup provides hands-on experience with advanced cybersecurity tools and techniques, enhancing their understanding of mobile app data flows and privacy concerns.