Infiltrating Wi-Fi Networks: Software and Techniques Without a Router

Kismet

Kismet is an open-source tool for detecting and collecting data packets from Wi-Fi networks. Kismet works by scanning and capturing data packets sent over Wi-Fi networks and can be used for a variety of purposes, such as:

• Network Detection: Identifies nearby Wi-Fi networks.
• Data Collection: Captures data packets for further analysis.
• Intrusion Identification: Detects unauthorized devices trying to connect to the network.
• Security Analysis: Identifies potential weaknesses and security issues on Wi-Fi networks.

To use Kismet to capture Wi-Fi network traffic, your network adapter must support a mode monitor. This mode allows the adapter to listen for all packets sent over the network, not just packets destined for that device. Here are the basic steps to use Kismet in monitor mode:

1. To install Kismet on Linux (for example, a Debian-based distribution such as Ubuntu), open a terminal and run the following command:

sudo apt-get update
sudo apt-get install kismet

2. Enable monitor mode on your Wi-Fi adapter. For example, if your adapter is wlan0, run the following command:

sudo airmon-ng start wlan0

3. This will activate monitor mode and change the interface name to wlan0mon.
4. Open Kismet by typing the following command in the terminal:

sudo kismet

5. The kismet will open in terminal mode or web interface, depending on your system configuration.

Kismet Setup and Data Analysis Tutorial

Here is a step-by-step tutorial to set up Kismet and analyze the captured data:

1. After opening Kismet, you will be prompted to configure the capture source. Choose an interface that supports monitor mode, for example, wlan0mon.
2. Confirm and start capturing by pressing Start or following the on-screen instructions.
3. Kismet will start picking up data packets from Wi-Fi networks around you. You’ll see a list of detected networks as well as information such as SSID, BSSID, signal strength, and encryption type.
4. Kismet will also record all captured packets for further analysis.
5. You can save the captured data to a file for further analysis by selecting the Save option or using the command:

kismet -c wlan0mon -w /path/to/outputfile

6. The data will be stored in a pcap format that can be opened with other analysis tools such as Wireshark.
7. Open the pcap file stored with an analysis tool like Wireshark to perform a more in-depth analysis of the captured packets.
8. You can filter packets by protocol, IP address, or other information to look for suspicious patterns or potential threats.

Usage Examples

Suppose you want to monitor the Wi-Fi network activity in your office to detect unauthorized devices or potential security threats. With Kismet, you can perform the following steps:

1. Open Kismet and start capturing packets from your office’s Wi-Fi network using the wlan0mon interface.
2. Pay attention to the list of detected networks and connected devices. Record important information such as SSID, BSSID, and signal strength.
3. If you see an unknown device or suspicious activity, you can investigate further.
4. Save captured data and open it with Wireshark for deeper analysis.
5. Filter packets based on specific criteria to find suspicious activity, such as brute-force attacks or attempts to access sensitive data.

Fern WiFi Cracker

Fern WiFi Cracker is a network security tool designed with a user-friendly graphical interface, making it easy for users, especially beginners, to conduct security audits on Wi-Fi networks. With its intuitive interface, Fern WiFi Cracker allows users to perform a series of tests and attacks against Wi-Fi networks without requiring in-depth knowledge of the command line.

Fern WiFi Cracker offers a variety of key features that help users test the security of Wi-Fi networks, including:

• WEP Cracking: Supports attacks on networks with WEP encryption.
• WPA/WPA2 Cracking: Uses brute-force attacks to crack WPA/WPA2 network passwords.
• WPS Attack: Attacking routers with WPS features enabled.
• MAC Address Changer: Change the MAC address of the Wi-Fi adapter to hide the identity of the device.
• Session Hijacking: Taking over network sessions to access sensitive information.
• Network Scanner: Scans the network to find connected devices.