Krishna Signature Detection The first form of detection or recognition is based on signature; this method is also sometimes called misuse detection. The system compares traffic to known models and when matches are found it reports the attack. Pattern matching is the most basic form of detecting and is used in many systems. The process relies … Read more
what type of activities are indications of a potential attack? What type of actions can an IDS respond to? Let’s take a look at activities that may indicate an intrusion has occurred. Host System Intrusions What is an indicator of an attack on a host? A wide range of activities could be construed as an … Read more
The main purpose of an IDS is to detect and alert an administrator about an attack. The administrator can then determine, based on the information received from the IDS, what action to take. An IDS functions in the following way: The IDS monitors network activity for anomalies—that is, signatures or behaviors that may indicate an … Read more
The first type, and one of the most common, is the NIDS. The NIDS is designed to inspect every packet entering the network for the presence of malicious or damaging behavior and, when malicious activity is detected, throw an alert. The NIDS is able to monitor traffic from the router to the host itself. Much … Read more
An intrusion detection system (IDS) is an application or device used to gather and analyzev information that passes across a network or host. An IDS is designed to analyze, identify, and report on any violations or misuse of a network or host. Let’s take a close look at how an IDS works. An IDS is … Read more
Another wireless technology to consider is Bluetooth, which is seen in many mobile devices in today’s marketplace. Bluetooth refers to a short-range wireless technology commonly used to connect devices such as headsets, media players, and other types of technologies. Bluetooth operates in the 2.4 GHz frequency range and is designed to work at distances up to … Read more
The subject of wireless cards and chipsets is important. Although in many cases the chipset on the card and the wireless card itself may not matter, some tools require the presence of certain chipsets in order to function. Items to consider include: Operating system in use. Application in use. Whether packet injection is required (Windows … Read more
In order to attack, you must first find a target, and though site surveys can make this easier, they cannot help in every case. Several tools and mechanisms make locating a target network easier. The following are methods that can complement wardriving or be used on their own: OpenSignal is a useful app that can … Read more
Something else you should be aware of when talking about wireless networks is the type of antenna in use. If you are working with consumer-grade access points, this typically is not a big concern as the antenna is built in or provided with these products. However, when working with enterprise and commercial-grade access points you … Read more
When you are authenticating clients to a wireless network, two processes are available. The first, known as open system authentication, is used in situations where you want to make your network available to a wide range of clients. This type of authentication occurs when an authentication frame is sent from a client to an access … Read more