• Journal of the Korea Society of Computer and Information
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• v.11 no.6 s.44
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• pp.211-219
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• 2006

As the wireless network is popular and expanded, it is necessary to development the IDS(Intrusion Detection System)/Filtering System from the malicious wireless traffic. We propose the W-Sensor SW which detects the malicious wireless traffic and the W-TMS system which filters the malicious traffic by W-Sensor log in this paper. It is efficient to detect the malicious traffic and adaptive to change the security rules rapidly by the proposed W-Sensor SW. The designed W-Sensor by installing on a notebook supports the mobility of IDS in compare with the existed AP based Sensor.

• Convergence Security Journal
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• v.3 no.2
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• pp.57-65
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• 2003

A protection profile is the required specification document by consumer groups to specify what security purpose they would like to have in their specialized products. A protection profile assumption is the document that specifies consumer environment in the physical, artificial, network perspective and the contents of intended usage which include usage limitation, the value of latent asset, and additional applications for a TOE (Target of Evaluation). In this paper, we compare the assumptions of the NSA IDS PP and the IDS PP for government.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.9 no.3
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• pp.201-207
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• 2009

As the existing backdoor worked at user mode, which is application mode, it was possible to check the existence of backdoor by the integrity check of system file. However, for the backdoor using kernel module, it is impossible to check its existence by the integrity check of system file. Even various programs were presented to protect this LKM Kernel backdoor, there is limitation in protection as they examine the changes on the system Call Table. This study, recognizing the danger of invasion through such LKM Kernel backdoor, will provide alternative for the limitation which the existing integrity check couldn't prevent intrusion through Kernel backdoor.

• The Journal of the Korea institute of electronic communication sciences
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• v.3 no.1
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• pp.8-11
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• 2008

There are multiple reasons that caused the present serious status of network security, including Internet itself having a weak basis. However security is usually discarded when it contends with performance. As the world becomes more tightly interconnected, security technology continues to mature, organizations are feeling a greater need to rediscover network security. Network security technology generally concentrates on protection of the network infrastructure and, by implication, the protection of the user. This is a paper, describe current problems of network security and propose solutions.

• Journal of the Korean Association of Geographic Information Studies
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• v.26 no.4
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• pp.67-79
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• 2023

Service environments through laptops, smart devices, and various IoT devices are developing very rapidly. Recent security measures in these Internet environments mainly consist of network application level solutions such as firewall(Intrusion Prevention Systems) and IDS (intrusion detection system). In addition, various security data have recently been used on-site, and issues regarding the management and destruction of such security data have been raised. Products such as DRM(Digital Rights Management) and DLP(Data Loss Prevention) are being used to manage these security data. However despite these security measures, data security measures taken out to be used in the field are operated to the extent that the data is encrypted, delivered, and stored in many environments, and measures for encryption key management or data destruction are insufficient. Based on these issues we aim to propose a SecureOS Module, an OS-based security module. With this module users can manage and operate security data through a consistent interface, addressing the problems mentioned above.

• The Journal of the Korea Contents Association
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• v.6 no.12
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• pp.29-39
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• 2006

With the increasing popularity of the wireless network, the vulnerability issue on IEEE 802.1x Wireless Local Area Network (WLAN) are more serious than we expected. Security issues range from mis-configured wireless Access Point(AP) such as session hijacking to Denial of Service(DoS) attack. We propose a new system based on intrusion detection or prevention mechanism to protect the wireless network against these attacks. The proposed system has a security solution on AP that includes an intrusion detection and protection system(IDS/IPS) as an embedded module. In this paper, we suggest integrated wireless IDS/IPS module on AP with wireless traffic monitoring, analysis and packet filtering module against malicious wireless attacks. We also present that the system provides both enhanced security and performance such as on the university wireless campus network.

• Journal of KIISE:Computer Systems and Theory
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• v.32 no.7
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• pp.333-340
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• 2005

One of the most important core technologies required for the design of the ITS (Intrusion Tolerance System) that performs continuously minimal essential services even when the network-based computer system is partially compromised because of the external or internal intrusions is the quantitative dependability analysis of the ITS. In this paper, we applied self-healing mechanism, the core technology of autonomic computing to secure the protection power of the ITS. We analyzed a state transition diagram of the ITS composed of a Primary server and a backup server utilizing two factors of self-healing mechanism (fault model and system response) and calculated the availability of ITS through simulation experiments and also performed studies on two cases of vulnerability attack.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.28 no.5B
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• pp.381-387
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• 2003

The importance of protection for data and information is increasing by the rapid development of information communication and network. And concern of the private-information protection is increasing for the requested user's demand. Analysis of unknown signal characteristics is importance for the safe system maintenance from hacker and cracker. Detected target of unknown signals is virus, inner invader and outer invader, etc. Because existed unknown signal detection method exist individually for the virus, inner invader and outer invader system performance is very lower and system cost is very much. Therefore, in this paper proposed merging IDS system performs detection for virus, inner intrusion and outer intrusion method. Design of the proposed system is used Synopsys Ver. 1999.10 and VHDL coding. The proposed IDS system is practical in the system performance and cost for the individually existed IDS, and proposed IDS system utilized a part of system resources.

• Proceedings of the Korea Society of Information Technology Applications Conference
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• 2005.11a
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• pp.259-262
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• 2005

This paper addresses the problem of protecting security policies in security mechanisms, such as the detection policy of an Intrusion Detection System. Unauthorized disclosure of such information might reveal the fundamental principles and methods for the protection of the whole network. In order to avoid this risk, we suggest two schemes for protecting security policies in Snort using the symmetric cryptosystem, Triple-DES.

• Convergence Security Journal
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• v.6 no.3
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• pp.1-12
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• 2006

Malicious codes have been widely documented and detected in information security breach occurrences of Microsoft Windows platform. Legacy information security systems are particularly vulnerable to breaches, due to Window kernel-based malicious codes, that penetrate existing protection and remain undetected. To date there has not been enough quality study into and information sharing about Windows kernel and inner code mechanisms, and this is the core reason for the success of these codes into entering systems and remaining undetected. This paper focus on classification and formalization of type target and mechanism of various Windows kernel-based attacks, and will present suggestions for effective response methodologies in the categories of, "Kernel memory protection", "Process & driver protection" and "File system & registry protection". An effective Windows kernel protection system will be presented through the collection and analysis of Windows kernel and inside mechanisms, and through suggestions for the implementation methodologies of unreleased and new Windows kernel protection skill. Results presented in this paper will explain that the suggested system be highly effective and has more accurate for intrusion detection ratios, then the current legacy security systems (i.e., virus vaccines and Windows IPS, etc) intrusion detection ratios. So, It is expected that the suggested system provides a good solution to prevent IT infrastructure from complicated and intelligent Windows kernel attacks.