Nowadays, we use wireless networks almost everywhere, starting from home, restaurants, and cafeterias to various organizations. Because of the convenience of using the wireless internet, we sometimes connect to the Wi-Fi networks without passwords or encryption. And that gives rise to another threat to wireless networks called wardriving.

What is wardriving?

Wardriving indicates scanning and connecting to a wireless network illegitimately for malicious purposes. Attackers often do it to steal sensitive information, spread malware, or perform other illegal activities. In this attack, attackers scan a neighborhood for less secure wireless networks and connect them for malicious purposes.

How is wardriving done?

It is fairly simple for wardrivers to do wardriving. A moving car, a laptop, or other mobile devices, a GPS, and an omnidirectional antenna often solve the purpose. There are a number of software available that the attackers usually use for finding wireless access points.

Attackers usually do wardriving in the following manner :

  • They place a laptop and GPS inside their car and mount the omnidirectional antenna on the top of their cars.
  • They select their target area. Usually, a densely populated area with good household income is targeted.
  • They start roaming in the locality in their car and scan for available wireless networks using specialized software.
  • After they have collected the data, they place the location of the obtained wireless network access points on a map.
  • Now, the wardrivers can upload the data on their websites, which they can later use to make more attacks.

How to detect wardrivers?

We can detect wardrivers with a system and software like Kismet. The following steps might be taken to detect wardrivers :

  • Set up a stationary computer with a wireless LAN card.
  • Run the software.
  • Wardrivers normally emit a packet of data after detecting a wireless access point. This packet of data can be used as a signature. The software can scan for the signature and report if found.

How to prevent wardriving?

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Amrita Mitra

Author

Ms. Amrita Mitra is an author, who has authored the books “Cryptography And Public Key Infrastructure“, “Web Application Vulnerabilities And Prevention“, “A Guide To Cyber Security” and “Phishing: Detection, Analysis And Prevention“. She is also the founder of Asigosec Technologies, the company that owns The Security Buddy.

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