Network Intrusion Detection and Prevention Essay

Despite the presence of network security devices such as firewalls and other security appliances, today's corporate networks are still vulnerable to both internal and external attacks by hackers intent on creating havoc. By proactively

In this modern day and age of computing, networks are a huge part of IT. It is important now more than ever that data sent over any network, whether it be a LAN (Local Area Network) or WAN (Wide Area Network; The Internet) is kept safe, private (when required) and uninterrupted in

For the purpose of this assignment snort will be used as intrusion detections systems which is an open source IDS, snort has the ability to monitor traffics in real time and packet locking its also inspecting each packets as they enters into the network, Snort can be used as packet sniffer to analyse the network traffic in order to detect any bizarre looking packets or payloads which might have malicious data in it. Snort can also detect payloads attacks against the network or host system including but not limited to stealth port scan, and buffer overflows.

Network Intrusion Detection: Software exists to watch traffic on your network to search for malicious intent. Is an Intrusion Detection System going to be implemented? An IDS is not a fire and forget type system. It requires constant monitoring. Smaller organizations will be overwhelmed by the amount of information it produces.

When the GCU gathers evidence for later use for the court, sources of evidence can be monitored to detect threatened incidents in a timely manner. The GCU employee’s needs to be aware of suspicious transaction related to any activity in the customer account. Securing intrusion detection systems (IDS) components are important because IDS are often targeted by attackers that want to prevent the IDS from detecting attacks or want to gain access to sensitive information on the IDS, such as host configurations and known vulnerabilities. In monitoring and auditing, the types of activities recognized as suspicious will be different from different business needs. For example, a forensic accountant may look for specific patterns of financial data to trigger suspicion of fraud or theft. A suspicious event might be multiple emails on a sensitive subject from a person that is not involved in the subject. Recommend resources that can be used

Two weaknesses were found in regards to the company 's network security. First weakness is a hardware weakness; and another is IDS which not having a Network-based Intrusion Detection System (IDS) in use. The recommended solutions are to show an AAA server for user authentication and authorization to company resources, and deploy a combination Host and Network-based IDS for overall monitoring of the company 's enterprise.

The National Institute of Standards and Technology (NIST) defines Information Security Continuous Monitoring as “maintaining ongoing awareness of information security, vulnerabilities, and threats to support organizational risk management decisions” (Dempsey, et al., 2011). NIST advocates for continuous monitoring of information security systems, by the process of defining the program, establishing it, implementing the program, analyzing and reporting findings, responding to the findings, and reviewing and updating the program. Additionally, they believe that in order to be more cost effective, and to improve efficiency and reliability of the monitoring program, automation would be the way to go. By making use of the latest trends in technology such as machine learning and data mining, algorithms can be developed to detect patterns, which would ordinarily be missed by the human eye. This is especially true of voluminous data where it is time consuming and just plain difficult for personnel to sift through. Such implementations leaves the security professionals with time to tackle the issues which would require human involvement (Dempsey, et al., 2011). One example of an automated monitoring system is a firewall. The job of a firewall is to monitor and regulate the network traffic coming into and out of a system, which could be as small as a single home computer connected to the internet, to several thousands of devices in an organization the size of Amazon or

Network-Based Scanner helps detect critical vulnerabilities for example mis-configured firewalls, risks associated with vendor-supplied software, vulnerable web servers, and risks associated with systems administration and network.

The IPS and IDS systems will be another addition that will be used to protect the Riordan Manufacturing networks as well. There is a difference between these two systems and it is important to know what each one does. The IPS stand for Intrusion Prevention System. This system is designed to prevent attacks from hitting the network. For the new Riordan network the IPS system that will be implemented is Surefire because use a rule based detection engine known as Snort.

Preventive controls can be as simple as locks and keys to access sensitive areas of a building, clearances to access classified data, or the use of complex passwords with encryption. Detective controls can be as simple as cameras or motion detector systems in a building, or, as complex as a network intrusion detection system (NIDS) on the network. Corrective controls, usually combined with preventive and detective controls, help reduce the damage once a risk has manifested. This can be done by performing regular backups in the event of a system crash. Below is an illustration (Figure 4-1) of the three main types of security

Intrusion detection and prevention systems monitor traffic/ logs either on the individual host or on the network in real time looking for signatures of common attacks or anomalies that will trigger an alarm either of an attack in motion or an attack that has already occurred.

2.4.7 Rapid intrusion detection and response procedures: KIU should have mechanisms in place to reduce the risk of undetected system intrusions. Computing systems are never perfectly secure. When a security failure occurs and an attacker is "in" the institution's system, only rapid detection and reaction can minimize any damage that might occur. Techniques used to identify intrusions include intrusion detection systems (IDS) for the network and individual servers (i.e., host computer), automated log correlation and analysis, and the identification and analysis of operational

The goal of intrusion detection is to monitor network assets, detect anomalous behavior, and identify misuse within a network (Ashoor, Gore, 2011). An intrusion detection system (IDS) is a device or software application that monitors network system activities for malicious activity or policy violations and produces reports to a management station (Kashyap, Agrawal, Pandey, Keshri, 2013), additionally there are three types of IDS:

Network security has changed significantly over the past years. There is more and more data to monitor and analyze in order to detect the activity of your data and systems. Securing a network has many variables. Password authentication, network access, patches, anti-virus protection, intrusion detection, firewall and network monitoring tools are just a few of the things you can do to protect yourself.

Firewalls is categorized as a preventive control which is used as a defense shield around IT systems to keep intruders and hacking from occurring, whereas, an Intrusion Detection System (IDS) which is categorized as a detective control is used to detect intrusions that have already occurred (Cavusoglu, Mishra, & Raghunathan, 2005). However, IDSs are not