Intrusion Detection Systems
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.
First lets go over what the difference is between a passive and a reactive IDS. In a passive IDS the sensor of detects an potential threat then logs the information and sends an alert to the console. With a reactive IDS, also known as an intrusion prevention system(IPS), the threat would be detected and logged. Then the reactive IDS would either reset the connection or reprogram the firewall to block network traffic from the suspected source, which could be automatic or at the control of an operator. Therefore a reactive system will act in response to the threat were as a passive system will only log and send an alert to the console informing the operator of a threat.
There are many types of intrusion detection systems, network intrusion detection, host based, protocol based, application protocol bas...
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...the real attack. Utilities such as stick and snot are designed to send a large amount of attack signatures across a network to spawn a large number of IDS alerts. However this will only work on IDSs that do not maintain application protocol context.
As you can see with the numerous ways around intrusion detection systems, as with any network security system, there is no complete security solution. Even with this there will always be a need for intrusion detection systems. The best of which would be a combination of network and host based IDSs, in other words a hybrid IDS. These will give you the benefits of both worlds of IDS and allow for greater security. Whatever your opinion on which solution is right for you, intrusion detection systems are here to stay and are a valuable tool in network security.
Resources
http://www.securityfocus.com/infocus/1514
IDS is a device or software application that monitors a network for an unauthorised attack.
These warnings can help users alter their installation’s defensive posture to increase resistance to future attacks. An intrusion detection system is comparable to a burglar alarm system. The car locks to protect the vehicle from theft. In the event someone compromises the lock, the burglar alarm detects this compromise and alarms the owner.
Imperva. (2012). Hacker Intelligence Initiative, Monthly Trend Report #12. Retrieved December 28, 2012 from https://www.imperva.com/docs/HII_Denial_of_Service_Attacks-Trends_Techniques_and_Technologies.pdf
Cichonski P., Grance T., Millar T., & Scarfone K. (2012). Computer Security Incident Handling Guide. Retrieved February 15, 2014 from http://csrc.nist.gov/publications/nistpubs/800-61rev2/SP800-61rev2.pdf
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
Current intrusion detection systems focus on system vulnerability, and therefore determine immediate threats and not strategic patterns. The cyberthreat environment requires strategic-level analysis of the broader threat, including emerging tactics, techniques, and procedures (TTPs). For strategic-level data collection, vulnerability-focused systems are
...r intrusion detection.”, Systems, Applications and Technology Conference, 2006. LISAT 2006. IEEE Long Island pp.1-8.
in the form of packet filtering, session matching and also make sure that the details of the systems in the intranet
Although Intrusion Detection Systems (IDS) and Intrusion Prevention Systems (IPS) have been grouped together here (IDPS), there are distinctions between them. On the most basic level, both will monitor the network...
I decided to write my paper on Intrusion Detection Systems (IDS) and Intrusion Prevention Systems (IPS) because professor mentioned these devices several times in class and I am interested in network security therefore it was a good opportunity for me to learn more about these security systems. An intrusion detection system (IDS) generally detects unwanted manipulations to computer systems, mainly through the Internet. The manipulations may take the form of attacks by crackers. An intrusion detection system is used to detect many types of malicious network traffic and computer usage that can't be detected by a conventional firewall. This includes network attacks against vulnerable services, data driver attacks on applications, host based attacks such as privilege escalation, unwanted logins and access to sensitive files, and malware (viruses, Trojan horses, and worms).
In real time, the computer programs that are compared observable behavior against suspicious elements to detect the intrusion are Intrusion Detection Systems (IDS).Based on several factors, intrusion detection systems are classified as so many types.Depends on response these systems are either passive or else active systems.In passive systems only identification of intrusion is done only.But in active intrusion detects the intrusion and takes some action to prevent the intrusion.
In fact, according to several studies, more than half of all network attacks are committed 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, and root access attacks.... ... middle of paper ... ...
Tankard, C. (2011). Advanced Persistent threats and how to monitor and deter them. Network security, 2011(8), 16-19.
Implement a system Intrusion Detection/Prevention System (IDS/IPS): - Make the investment in an IDS/IPS to distinguish and prevent potential system dangers. sensors ought to be circulated all through the system, with a specific focus on general society untrusted section. Take alerts very seriously.
The first thing that we must consider about Information Security is that there is not a final destination at which we can arrive. IT Security is an ongoing set of processes and activities that requires attention and expertise on a daily basis. It is important to understand that systems are not secured by themselves and it is our responsibility to maintain and improve them periodically as required. It is of vital importance to establish the appropriate mechanisms and requirements in order to support the company’s CIA triad. The following report will provide you guidance about auditing and hardening techniques applied though the 7 Domains by utilizing IT Security Best Practices.