![]() ![]() To see interesting packets, we'll start with DNS requests. Now that we have stripped away the protection around the traffic, Wireshark can decrypt them and tell us what the devices on this Wi-Fi network that we have handshakes for are doing in real time. If it works, we can move on to the step of analyzing the traffic to pick out apps in use. I was able to get it to work most of the time by ensuring I had a good handshake (EAPOL) and switching back and forth between using a network password and a PSK. This may not work for a variety of reasons. Once this is complete, click "OK" on the Preferences menu, and Wireshark should rescan all the captured packets and attempt to decrypt them. Before we start capturing, we'll need to set a few things up to make sure the card is capturing in the correct mode. Once you have Wireshark downloaded, open it, then take a look at your network interfaces. If you plan to use a PSK rather than a network key, you should calculate it using the Wireshark tool before doing so, because you may not be able to access the internet during the capture, depending on your card. Step 1: Download Wireshark & Connect to the Wi-Fi NetworkÄownload and install Wireshark if it's not already installed, and connect to the Wi-Fi network your target is on. This will allow you to calculate the pre-shared key, allowing us to decrypt the traffic in realtime. You'll also need to know the password and network name of the Wi-Fi network you want to monitor. You can practice this on an open Wi-Fi network to see what you're supposed to see, as sometimes decryption may not work the first time. Next, you'll need an iOS or Android smartphone connected to the Wi-Fi network you're monitoring. More Info: Buy the Best Wireless Network Adapter for Wi-Fi Hacking in 2019.You can check out our guides on selecting one that's Kali-compatible and supports monitor mode. To do this, you'll need a wireless network adapter card capable of wireless monitor mode. Don't Miss: Intercept Images from a Security Camera Using Wireshark.We can use this information to easily pick apart which services are running, even if they're only running in the background and the app hasn't been running in quite some time. To see a complete list of every domain the device has resolved, we can also look at a summary of resolved domains after the capture is complete. To get a feeling for what the targeted device is up to, we'll be using capture filters to highlight DNS and HTTP packets we're looking for. We'll open Wireshark and access the menu to decrypt Wi-Fi packets, add the PSK to enable decryption, and wait for EAPOL packets from the targeted device connecting to the network. ![]() First, we need the password, we need to be in proximity to the victim so we can record traffic, and we need to be able to kick the targeted device off the network or wait for them to reconnect. To pull off this attack, a few conditions need to be met. Also, DNS requests to resolve the domains that apps need to talk to in order to work are easy to see, identifying which apps and services are active. This may not seem like a big deal, but in only 60 seconds, it's easy to learn a lot about the type of device we're monitoring and what exactly is running on it. The content of HTTPS websites won't be able to be seen, but any plain HTTP websites you visit or any insecure HTTP requests apps on your phone makes are in plain view. Don't Miss: Detect Script-Kiddie Wi-Fi Jamming with Wireshark.If an attacker has the PSK to the Wi-Fi network and either observes you join the network or kicks you off for a moment, they can decrypt your Wi-Fi traffic to see what you're doing. The second is the actual handshake itself, which has to happen to establish a connection. The first is the password that's used to generate a much longer number, a PSK or pre-shared key. When you use a Wi-Fi network that uses WPA2 encryption, the security of your session is based on two things. ![]()
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