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최세호,오행록,윤주범,Choi, Seho,Oh, Haengrok,Yun, Joobeom 한국군사과학기술학회 2021 한국군사과학기술학회지 Vol.24 No.5
Cyber threats can bypass existing cyber-protection systems and are rapidly developing by exploiting new technologies such as artificial intelligence. In order to respond to such cyber threats, it is important to improve the ability to detect unknown cyber threats by correlating heterogeneous cyber protection systems. In this paper, to enhance cyber-attack response capabilities, we proposed command and control that enables rapid decision-making and response before the attack objectives are achieved, using Lockheed Martin's cyber kill chain and MITRE ATT&CK to analyze the purpose and intention of the attacker.
사이버 위협 중심의 국방 사이버 방호수준 분석에 관한 연구
최세호,오행록,윤주범 한국융합보안학회 2021 융합보안 논문지 Vol.21 No.4
사이버 방호란 사이버 공격 및 위협으로부터 우리가 운영하는 정보시스템을 보호하는 활동[1]이다. 현재 운영중인 사이버 방호체계의 방호수준을 알기 위해서는 시시각각 새롭게 발전하고 있는 사이버 위협을 반영하여 공격기술 현 황을 최신화하고 방호기능으로 대응이 가능한지 분석할 필요가 있다. 이에 본 논문에서는 사이버 킬 체인의 공격절 차와 방어유형으로 분류한 공격기술을 MITRE의 방어기술(Mitigation ID)과 연관 관계를 분석하고 방어적 사이버활 동 중심으로 군 부대 유형별 사이버 방호수준을 제시하고자 한다. 향후 국방영역에서 운영중인 사이버 방호체계의 대응역량을 실시간 분석하여 부대별 방호수준을 가시화하고 알려지지 않은 사이버 위협에 대한 조사 및 적극적인 취약점 보완을 통해 사이버 방호수준이 향상되길 기대한다. Cyber protection is an activity that protects the information systems we operate from cyber attacks and threats. To know the level of protection of the currently operating cyber protection system, it is necessary to update the current state of attack technology by reflecting the constantly evolving cyber threats and to analyze whether it is possible to respond with the protection function. Therefore, in this paper, we analyze the relationship between the attack procedures and defense types of the cyber kill chain with the defense technology(Mitigation ID) of MITRE and present the cyber protection level for each military unit type with a focus on defensive cyber activities. In the future, it is expected that the level of cyber protection will be improved through real-time analysis of the response capabilities of cyber protection systems operating in the defense sector to visualize the level of protection for each unit, investigate unknown cyber threats, and actively complement vulnerabilities.
최세호,김명수,윤재필,박무성,이성기,신동규 국방보안연구소 2022 국방과 보안 Vol.4 No.2
In order to respond to unknown cyber threats, it is defended with a multi-level deep information protection system, but cyber attacks concentrate all resources on the weakest point of the information protection system. In this situation, it is not possible to respond 100% to a cyber attack within a limited time, so when a cyber attack is recognized, it is a cyber resilience that can quickly respond to prevent the spread of damage in the system operation state and return to the state before the cyber attack as soon as possible. In this paper, we propose a procedure for optimizing cyber defense activities so that we can act according to the response and recovery phase of cyber resilience, and compare the results of a training case that have actually been put into action to verify the infringement response time for each type of cyber attack. In the future, it is expected that the response time for each cyber defense activity will be subdivided and used for cyber combat power index research.
파랑을 고려한 항만 건설공사 작업일수 산정에 관한 연구
최세호,백종대,정원무,최혁진 (사)한국연안방재학회 2019 한국연안방재학회지 Vol.6 No.2
Harbor construction projects are classified into various types according to project site. Most of the harbor projects, such as harbor structure, breakwater and dredging work, are located in areas that are affected by the wave conditions. Until now, the number of the working days for harbor construction have been estimated by applying the method considering the working days due to only weather conditions(Korean Society of Civil Engineers, 1969). However, this conventional estimation method is different from the actual field conditions, especially on harbor construction project, such as the fact that the effect of the wave is not considered so the estimated number of working days is too much. In this study, the numbers of working days obtained by the conventional method and the new method, estimated based on the long-term wave data derived from this study, were compared with the actual construction daily reports. As the result, the estimation of the annual workability rate is 70% from the conventional method and 45.5% from the new method considering the wave condition, almost similar to the 51.8% result of the actual construction daily reports analysis. From these results, it is necessary to consider the effect of the wave condition, which is the most important factor in the estimation of the number of working days for harbor construction project, especially for breakwaters. This new estimation method of the number of working days for harbor construction project considering wave condition is needed precise long-term wave data of the whole sea area in Korea and additional study is required in the future.