It is quite natural to understand that before we investigate any kind of hijacking issue, we need to make sure that we are able to detect the problem. Proper detection also requires proper preparation in advance in order to be able to identify the problem when it persists. Following from this, to be more specific, preparation seems to be the first phase of detection, as without proper preparation, detection would not be possible. There are few things to follow when it comes to making sure one is prepared to be protected against BGP hijacking [5]:
i. Ensuring prefixes are all provably yours, ii. Registering prefixes in the Internet Routing Registries (IRRs), iii. Asking provider about response procedures to hijacking. iv. Not putting important resources in the same prefixes. (YouTube previously ran DNS in the same prefixes as web/video and thus suffered the damage- a great lesson for the Internet world).
Once we are prepared with all these measures, our next goal would be to appropriately detect the correct issue. This involves answering questions like: Where exactly has hijacking been done, is it a prefix hijacking or sub-prefix hijacking, which AS route has been maligned, etc. Thus, in order to understand the technique of detection, it is important to understand the difference between the two types of BGP hijacking: Prefix hijacking and Sub-prefix hijacking [4]:
i. Prefix Hijacking: This occurs when the attack router creates a route to an existing IP prefix of the victim network. This results in the Internet being partially polluted, depending on how preferable the fake route is compared to the real route from the view point of various networks. ii. Sub-prefix Hijacking: This occurs when the attacker steals a subnet of an e...
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...onitors. Generally speaking, the more the number of monitors used by LOCK, the higher accuracy LOCK can achieve in locating the prefix hijackers.
3.3 REACTIVE MITIGATION SCHEME
In order to overcome slow and error prone mitigation schemes, we need a reactive detection-assisted mitigation scheme that automatically responds to detected prefix hijacks and hence mitigates the adverse impact of the attacks in a timely fashion. An effective mitigation system works as follows [4]:
Step 1: Upon detecting a prefix hijack, the detection system notifies the mitigation system about the hijack with three pieces of information:
• The attacker AS,
• The victim AS, and
• The victim prefix.
These three pieces of information are extremely useful as they help us differentiate between bogus routes (that end with the attacker’s AS) and valid routes (which end with the victim’s AS).
The analysis will allow the NIDS to alert on activity which could be a sign of unauthorized access or malicious activity. The IT security team will check the alerts to determine if an event or incident has occurred. Similarly, an HIDS application will be installed on all servers and workstations. The HIDS application will analyze the servers and workstation and check the system logs to determine if any potential unauthorized or malicious activity has occurred and send the information to the NIDS for processing and alert creation.
In this section we investigate attacks and threats to our primary devices. These attacks and threats are built off of the vulnerabilities the previous section and help to determine which security controls would be most valuable against future attacks.
and their use. In Committee on Deterring Cyber attacks: Informing Strategies and Developing Options (Ed.), Proceedings of a Workshop on Deterring Cyber attacks: Informing Strategies and Developing Options for U.S. Policy. Washington, D.C.: National Academies Press.
What is a problem with DNS? There is DNS spoofing and DNS hijacking both usually done by hackers, and they could direct users to websites containing malware or a third-party search engine or just corrupt DNS data in general.
...o city council to vote on whether or not it would be a good idea, but the council voted not to go along with the idea and cancelled the revamping project. They said "the Strip wouldn’t be the same if they got rid of historic stores along 18th street."
...xamples taking under consideration like modeling and countermeasures based on internet threat monitors. But still in future there may be new traffic implementation by the attackers for which we need to change the methods and updates for users and their software.
Watch Guard Fireware has a firewall based IPS the can detect and block of attacks in the proxy policies. When enabling Firebox, this will protect the network from any kind of attack especially zero day threats from the outside world. Also, the IT staff should use a signature-based Intrusion prevention system to that is good for maintaining efficiency and performance protection on the network. Using my suggestions will prevent any more threats in the future for these web servers on the college’s
Have you ever protected your belongings from someone? In the story Interlopers, a man named Ulrich von Gradwitz protects his ancestral property from an enemy in a rival family named George Znaeym. When a tree falls on top of them, the two men get trapped and ends the feud between the two families. In Saki’s “Interlopers”, Saki uses the plot, setting, and conflict to structure the story to help create tension and surprise. The theme of the story is to “forgive and forget”, which is applied near the end of the story when the two enemies realize the trouble they are going through for an old forest that has been around for generations.
In 1980, James Anderson’s paper, Computer Security Threat Monitoring and Surveillance, bore the notion of intrusion detection. Through government funding and serious corporate interest allowed for intrusion detection systems(IDS) to develope into their current state. So what exactly is IDS? An IDS is used to detect malicious network traffic and computer usage through attack signatures. The IDS watches for attacks not only from incoming internet traffic but also for attacks that originate in the system. When a potential attack is detected the IDS logs the information and sends an alert to the console. How the alert is detected and handled at is dependent on the type of IDS in place. Through this paper we will discuss the different types of IDS and how they detect and handle the alerts, the difference between a passive and a reactive system and some general IDS intrusion invasion techniques.
The 20 Enemies of the Internet. 1999. Radio Free Europe / Radio Liberty. Feb 20, 2001. <http://www.rferl.org/nca/special/enemies.html>.
TOR (Roger Dingledine) is a circuit based low-latency anonymous communication service. TOR is now in its second generation and was developed from the Onion routing program. The routing system can run on several operating systems and protect the anonymity of the user. The latest TOR version supports perfect forward secrecy, congestion control, directory servers, integrity checking and configurable exit policies. Tor is essentially a distributed overlay network which works on the application layer of the TCP protocol. It essentially anonymizes all TCP-based applications like web-browsing, SSH, instant messaging. Using TOR can protect against common form of Internet surveillance known as “traffic analysis” (Electronic Frontier Foundation). Knowing the source and destination of your internet traffic allows others to track your behavior and interests. An IP packet has a header and a dat...
Without proper protection, any part of any network can be susceptible to attacks or unauthorized activity. Routers, switches, and hosts can all be violated by professional hackers, company competitors. In fact, according to several studies, more than half of all network attacks are waged internally. To determine the best ways to protect against attacks, we should understand the many types of attacks that can be instigated and the damage that these attacks can cause to data. The most common types of attacks include Denial of Service (DoS), password, an...
Within the last decade, the internet has proven to be the most efficient way to complete tasks in today’s society. Every major business in today’s society relies on the internet to conduct business. Though the internet is a useful tool, our reliability on it opens up the door for cyber-attacks that can be detrimental to business as a whole. One example of a cyber-attacks that have recently started becoming more prevalent are DDoS attacks. Recently, DDoS attacks have been a rising issue for businesses owners who run their own servers, such as video game companies and other high profile web servers, including banks and other credit card payment gateways.
Taber, M (n.d.). Maximum Security: A Hacker's Guide to Protecting Your Internet Site and Network (chapter 3.)
Due to the demand for the internet to be fast, networks are designed for maximum speed, rather than to be secure or track users (“Interpol” par. 1). The adage of the adage.... ... middle of paper ... ...