摘要:
A network status display device using a traffic pattern map is provided. The device includes: a traffic feature extractor extracting a port number of a port having the maximum occupancy of micro-flows and macro-flows for each network address section and host address section with reference to traffic information collected by an external traffic information collector, calculating and storing an occupancy rate of the port; a traffic status display unit making a network traffic pattern map expressed by destination-source network addresses and a host traffic pattern map expressed by destination-source host addresses and displaying the port information stored in the traffic feature extractor on the network traffic pattern map and the host traffic pattern map; and a traffic anomaly determination unit determining whether a network status is abnormal with reference to the network traffic pattern map and the host traffic pattern map and detecting and reporting a harmful or abnormal traffic which causes the abnormal network status. The device can determine whether the anomaly deteriorating the network performance exists and can easily and quickly detect the harmful or abnormal traffic which causes the anomaly by the use of the port information of the port having the maximum occupancy of the micro-flows and the macro-flows for each network address section and each host address section.
摘要:
A network status display device using a traffic flow-radar is provided. The network status display device includes: a traffic feature extractor calculating flow occupancy rates for total flows, micro-flows and macro-flows with respect to each of a plurality of traffic features with reference to traffic information for each traffic feature such as a network address, a port, a transmitting/receiving host address or a protocol collected by an external traffic information collector, and storing the calculation result; a traffic status display unit displaying the flow occupancy rates for each traffic feature calculated and stored in the traffic feature extractor on a radar with dots for each traffic feature; and a traffic anomaly determination unit determining whether a network status is abnormal with reference to the radar for each traffic feature, detecting and reporting the type of the abnormal network status and harmful or abnormal traffic that generates the abnormal network status, when the abnormal status occurs.
摘要:
There are provided a network security state visualization device and method, the device including: a security event collector collecting original security event information from network security apparatuses; a security event analyzer analyzing the original security event information collected by the security event collector and extracting characteristic data corresponding to a security event; and a three-dimensional visualization display unit visualizing a correlation between the characteristic data extracted by the security event analyzer as a three-dimensional screen to be displayed.
摘要:
There are provided a network state display apparatus and method capable of easily determining a present network security state in real time by analyzing an abnormality and harmful traffic deteriorating performance of a network in software by using a result of combining essential characteristics of traffic, a distinct dispersion, and an entropy and displaying the network state to be intuitionally recognized, the method including selecting and combining three of a source address, a source port, a destination address, and a destination port of collected traffic and calculating a distinct dispersion and an entropy of a residual one therefrom; displaying the calculated distinct dispersion and entropy on a security radar where the distinct dispersion and the entropy are assigned to an angle and a radius; determining whether a network state is abnormal, based on a result displayed on the security radar; and detecting reporting detailed information on abnormal traffic causing the abnormal network state.
摘要:
There are provided a network security state visualization device and method, the device including: a security event collector collecting original security event information from network security apparatuses; a security event analyzer analyzing the original security event information collected by the security event collector and extracting characteristic data corresponding to a security event; and a three-dimensional visualization display unit visualizing a correlation between the characteristic data extracted by the security event analyzer as a three-dimensional screen to be displayed.
摘要:
Provided is an apparatus for detecting a network attack situation. The apparatus includes an alarm receiver receiving a plurality of alarms raised in a network to which the alarm receiver is connected, converting the alarms into predetermined alarm data, and outputting the alarm data; an alarm processor analyzing an attack situation in the network based on attributes of the alarm data and a number of times that the alarm data is generated; a memory storing basic data needed to analyze the state of the network and providing the basic data to the alarm processor; and an interface transmitting the result of the analysis by the alarm processor to an external device, receiving a predetermined critical value from the external device, which is a basis for determining the occurrence of the attack situation, and outputting the critical value to the alarm processor such that the alarm processor can store the critical value in the memory. Equal numbers of hash engines and detection engines for processing the alarms in the network to the number of data groups classified as network attack situations are formed in a line. Therefore, a network attack situation can be detected in real time based on a great number of alarms indicating intrusion detection.
摘要:
Provided is an apparatus for detecting a network attack situation. The apparatus includes an alarm receiver receiving a plurality of alarms raised in a network to which the alarm receiver is connected, converting the alarms into predetermined alarm data, and outputting the alarm data; an alarm processor analyzing an attack situation in the network based on attributes of the alarm data and a number of times that the alarm data is generated; a memory storing basic data needed to analyze the state of the network and providing the basic data to the alarm processor; and an interface transmitting the result of the analysis by the alarm processor to an external device, receiving a predetermined critical value from the external device, which is a basis for determining the occurrence of the attack situation, and outputting the critical value to the alarm processor such that the alarm processor can store the critical value in the memory. Equal numbers of hash engines and detection engines for processing the alarms in the network to the number of data groups classified as network attack situations are formed in a line. Therefore, a network attack situation can be detected in real time based on a great number of alarms indicating intrusion detection.
摘要:
Provided is an apparatus for detecting and visualizing anomalies in network traffic which includes a traffic information storing portion storing information on network traffic, a traffic state display portion presenting a status of the network traffic generated for a predetermined threshold time based on the information on network traffic on an orthogonal coordinates system in a form of a graph connecting at least one point data as a coordinate value, and a traffic anomalies determination portion determining an existence of anomalies in the network traffic based on a shape of the graph.
摘要:
There are provided an apparatus and method for sampling a security event based on contents of the security event, the apparatus including: a security event accumulation module collecting security events occurring in a network system and storing the security events for each type according to contents of the security event; a security event analysis module calculating distribution of the security events for each type by analyzing the stored security events; and a security event extraction module sampling the stored security events according to the calculated distribution of the security events for each type. The apparatus and method may improve speed of visualization of a security event and a security event analysis apparatus and may increase accuracy thereof.
摘要:
There are provided an apparatus and method for sampling a security event based on contents of the security event, the apparatus including: a security event accumulation module collecting security events occurring in a network system and storing the security events for each type according to contents of the security event; a security event analysis module calculating distribution of the security events for each type by analyzing the stored security events; and a security event extraction module sampling the stored security events according to the calculated distribution of the security events for each type. The apparatus and method may improve speed of visualization of a security event and a security event analysis apparatus and may increase accuracy thereof.