Service behavior portrait-based anti-crawler method suitable for power SCADA

Abstract

The invention discloses a service behavior portrait-based anti-crawler method suitable for power SCADA, comprising the following steps: analyzing data traffic generated by normal service behaviors ofa power SCADA system to form portraits corresponding to different normal service behaviors, the normal service behavior portraits comprising similarities corresponding to the normal service behaviors;and the similarities of the normal service behaviors being generated based on a request mode, a request interval, a data packet generation rate, a data packet format, request time distribution, a context request logic relationship, error waiting time and a data packet continuous traffic sum when the power SCADA system is normally operated; after a server receives the request traffic of an accesspage sent by the client, matching the normal service behavior portrait corresponding to the access traffic; and determining whether the access traffic is a normal service behavior or not based on thesimilarity in the normal service behavior portrait corresponding to the access traffic, and if not, determining the access traffic as a crawler behavior and carrying out anti-crawler processing.

Description

technical field [0001] The invention belongs to the field of network technology, and in particular relates to an anti-crawler method based on business behavior portraits suitable for electric power SCADA. Background technique [0002] Power SCADA (Supervisory Control And Data Acquisition) system, that is, data acquisition and monitoring control system, is a computer-based automatic monitoring system. It is responsible for monitoring and controlling on-site operating equipment in thermal power plants, hydropower stations, wind farms, and photovoltaic power stations. , in order to realize the information system of various functions such as data acquisition, equipment control, measurement, parameter adjustment and various signal alarms. [0003] A web crawler is a program that starts from one or several initial web pages in the information system, gradually visits each web page in the information system, and grabs and saves the required data in the web pages. [0004] With the...

AI Technical Summary

Problems solved by technology

For this reason, the existing enhanced anti-crawler technology will use the request interval time and the number of concurrent requests as identification parameters to further improve the ability of anti-crawlers, but there are still crawler programs that can reduce the crawling rate and increase the crawling interval. , reduce the number of concurrency, etc. to bypass, making the anti-crawler function invalid

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