In today's digital world, wireless network security is no longer just a matter for the corporate sector, but has become critical for home users as well. Situations often arise where you need to test your network's resistance to hacking or recover access to a forgotten router administrator password. CommView for WiFi from TamoSoft is one of the most powerful solutions for traffic analysis and wireless security auditing in the Windows environment.
Many users mistakenly believe that there are programs that can instantly "hack" any Wi-Fi network with a single button. In reality, the process of gaining access to a secure network (WPA/WPA2) requires intercepting specific data packets known as handshake, and subsequent password brute-force using a dictionary. This article examines the technical aspects in detail, explaining how to use a sniffer for legitimate auditing and recovery of lost access data.
It's worth noting that using packet sniffers requires specialized equipment. Standard Wi-Fi adapters built into laptops often don't support monitor mode, which is necessary for capturing other people's traffic. Therefore, before beginning a deep analysis, it's important to ensure your hardware is compatible with TamoSoft drivers or that you're using an external USB card with an Atheros or Ralink chipset.
How a sniffer works and how packets are captured
CommView for WiFi functions as a packet analyzer, operating at a low level of the OSI network model. Unlike regular web browsing, the sniffer puts your network adapter into a mode that allows it to capture all frames passing through the air, even if they're not addressed to your computer. This fundamental difference allows you to see the network structure, the list of connected clients, and the rate of data exchange.
The key to password discovery is intercepting the authentication process. When a device attempts to connect to an access point, a four-way handshake occurs. It is at this point that the client and router exchange hashed data, which can theoretically be used to verify the password offline. CommView automatically filters this traffic, highlighting the required frames.
However, a sniffer itself cannot brute-force passwords. Its purpose is to collect "evidence" (captured packets) and save it to a file for further analysis. Without the handshake interception step, any further access restoration efforts are technically meaningless. The program merely provides data, which is then processed by specialized utilities.
⚠️ Warning: Intercepting and analyzing traffic on networks you don't own may violate the laws of your country. Use these methods only to audit your own networks or with the written permission of the infrastructure owner.
It's important to understand the difference between open and secure networks. If the network is unencrypted, all traffic is visible in plaintext immediately after the scan is launched. If protocols are used, WPA2-PSK or WPA3, the contents of the packets will be encrypted, and to decrypt them, we will need the very password that we are trying to recover or test for strength.
Hardware requirements and driver installation
The success of the handshake capture operation directly depends on the capabilities of your Wi-Fi adapter. Most built-in Intel or Realtek modules in laptops operate only in client mode and cannot switch to monitor mode under Windows. For full functionality, CommView for WiFi An external device is often required.
Adapters based on Atheros chips (such as the AR9271 series) and some Ralink models demonstrate the greatest compatibility. These devices allow software-based mode changes and support packet injection, which is sometimes necessary to force a client to reconnect and generate a new handshake. Without these features, you'll only see packet headers but won't be able to obtain full data for analysis.
The software installation process requires careful attention. TamoSoft offers a proprietary driver that replaces the standard Windows driver for the selected adapter. This is necessary to access the card's low-level functions. If you're using a virtual machine, setting up USB device passthrough can also be critical to success.
- 📡 Check the list of supported adapters on the developer's official website before purchasing the equipment.
- 🔌 Disable automatic Windows driver updates to prevent the system from replacing the required driver with a standard one after a reboot.
- 💻 Make sure the adapter is displayed correctly in Device Manager and has no resource conflicts.
It's worth noting that in the latest versions of Windows 10 and 11, kernel security mechanisms may block the installation of third-party network card drivers. In such cases, temporarily disabling driver signature verification or using special system boot modes may be necessary.
Setting up scanning and selecting the target network
After successfully installing the drivers and launching the program, the CommView for WiFi interface will prompt you to select an active adapter. At this point, it's important to be careful and select the device that supports monitoring. In the channel list, select the band in which the target network operates: 2.4 GHz or 5 GHz.
The program's main window is divided into several tabs, but the "Wi-Fi" or "Network" tab is most important for initial analysis. It displays a list of all detected access points (APs), including their SSID (network name), MAC address, signal strength (RSSI), and encryption type. Hovering over the columns allows you to sort networks by signal strength, helping you select the most stable target for analysis.
To begin capturing data, select the desired network from the list and click the start button. The program will switch to real-time mode, beginning to count packets. At this point, you'll see rapidly changing numbers in the "Packets" and "Bytes" columns. If the network is active and has users, the counter will increase.
Settings -> Wi-Fi -> Select Adapter -> Start ScanningThe channel is a critical parameter. If you select the wrong channel, the program won't see the traffic, even if the network is listed. CommView usually switches channels automatically, but for reliable capture, it's best to lock onto the specific channel the target access point is operating on.
Handshake interception for WPA/WPA2
The most difficult and important step is waiting for the client to connect. The WPA2 protocol doesn't transmit the password in cleartext. Instead, a key exchange occurs when the device connects. The sniffer needs to "catch" this moment. The program interface has a special indicator or event log that signals the successful capture of a WPA Handshake.
If no one is currently connecting to the network, a handshake may never happen. In such cases, security administrators use deauthentication. By sending a special control frame to the connected client's MAC address, they can forcibly terminate its connection to the router. The client, attempting to reestablish the connection, automatically initiates the connection process again, generating the required handshake.
In CommView for WiFi, this feature is available in the context menu or through specialized traffic generation tools. However, using deauthentication is an active intervention in network operation and can be considered a Denial of Service (DoS) attack. This is acceptable for legitimate testing, but requires caution.
☑️ Handshake checklist
| Parameter | Description | Importance for success |
|---|---|---|
| Encryption type | Network Security Protocol | WPA2-PSK (AES) |
| Channel | Broadcast frequency | Matches AP |
| Signal (RSSI) | Reception level | Above -70 dBm |
| Status | Capture indicator | Handshake Captured |
After successful capture, the program will prompt you to save a log file. Typically, these are files with the extension .NCF (native format) or .PCAP (universal format). For further work with passwords, the PCAP format is preferred, as it is compatible with most brute-force tools, such as Hashcat or Aircrack-ng.
Analysis of saved data and key recovery
CommView for WiFi itself is not a brute-force password cracking tool. Its purpose ends at the data collection stage. The resulting file contains a hashed version of the password. To "find" the password, this hash must be compared with dictionary hashes. This process is called an offline attack.
To perform this step, the capture file is exported to a format understandable by recovery tools. A common combination is CommView (packet capture) and then Aircrack-ng or Hashcat (password cracking). The CommView interface displays whether the key has been captured, but decrypting it within the program without an external dictionary is impossible.
Recovery efficiency depends on the password complexity and the performance of your computer (especially the graphics card, if GPU acceleration is used). Simple passwords (date of birth, "12345678") can be found in seconds. Complex character combinations can take years to crack. That's why security audit aimed at identifying weaknesses, not a guaranteed hack.
Why can't I find the password?
If the program reports that the key was not found, it means the password is not in the dictionary being used. This is not a program error, but an indicator of the password's complexity. Success requires larger word databases or combinatorics methods.
There are cloud services and specialized hash databases (Rainbow Tables) that allow you to instantly find passwords if they've previously appeared in leaks. Loading a hash into such a database can yield results faster than local brute-force attacks, but this only works for common passwords.
Limitations of Security Protocols and WPA3
As wireless security technologies advance, methods that work for WPA2 become less effective or completely ineffective. Protocol WPA3, implemented in new routers, uses the SAE (Simultaneous Authentication of Equals) mechanism, which makes it impossible to intercept a handshake for subsequent offline guessing using classical methods.
In WPA3 networks, a dictionary attack on a captured handshake is no longer applicable in its previous form. This means that "getting the password" through a sniffer in a modern secure network is virtually impossible without exploiting vulnerabilities in the hardware itself or social engineering. CommView for WiFi in such networks only performs diagnostic functions.
Furthermore, using long and complex passwords (more than 12 characters, including numbers, uppercase and lowercase letters, and special characters) negates the effectiveness of any sniffers. The time it takes to brute-force such a key exceeds the age of the universe, even on supercomputers. Therefore, the best protection is to avoid relying on SSID secrecy and instead use cryptographically strong passwords.
⚠️ Note: Software interfaces and functionality are subject to update. Exact menu names and button layouts in new versions of CommView for WiFi may differ from those described. Always consult the official TamoSoft documentation.