Method and apparatus for detecting the anomalies of an infrastructure
AssigneeNozomi Networks Sagl
InventorsAndrea CARCANO, Moreno CARULLO
Life of this patent
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AssigneeNozomi Networks Sagl
InventorsAndrea CARCANO, Moreno CARULLO
Estimating the term…
The present invention relates to a method for detecting anomalies in an infrastructure comprising the step of analyzing each of the data packets (PD) exchanged in the telecommunication system; identifying for each of the analysed data packets (PD) all the network protocols used and at least one field of each of the protocols; generating a virtual representation of the infrastructure (1) for each of the exchanged data packets (PD) and on the basis of the identified protocols and fields; storing the virtual representation generated for each of the exchanged data packets (PD); comparing the virtual representation stored with at least one comparison element, identifying at least one critical state of the infrastructure from the differences and/or similarities between the stored virtual representation and the comparison elements; signaling, by means of the computerized data processing means, an anomaly of the infrastructure when at least one of the critical states is identified in the virtual representation.
A method for detecting anomalies in a physical infrastructure (1) provided with:
The method according to one or more claims from 1, wherein said comparison elements comprise one or more thresholds of said values of the variable attributes relating to the physical state of said actuators and/or sensors, and
The method according to one or more claims from 1, wherein said comparison elements comprise one or more communication protocols not allowed for said network communication, and
The method according to one or more claims from 1, wherein said comparison elements comprise one or more fields not allowed for said communication protocols, and
The method according to one or more claims from 1, wherein said comparison step further comprises the comparison of two or more of said virtual representations generated in succession, and
The method according to one or more claims from 1, wherein before said comparison step said method comprises the step of defining said critical states, wherein said step of defining the critical states comprising the steps of
The method according to one or more claims from 1, wherein said method further comprises the step of defining risk values for each of said sensors and/or actuators and/or supervision unit and/or value and/or communication protocol and/or protocol field, said risk values being stored on said first or second storage means,
The method according to one or more claims from 1, wherein said data packets (PD) comprise at least one protocol field relating to the sender address and at least one protocol field relating to the recipient address, and wherein said virtual representation generated for each of said analysed data packets (PD) is obtained by defining said fields related to said addresses as nodes, the connections between said sender and said recipient as arcs and the remaining fields extracted from said data packets as values of said nodes and arcs.
An apparatus (100) for detecting anomalies in an infrastructure (1) provided with:
Dependencies are inferred from the claim text.