HTTP tunnel detection method based on decision tree classification algorithm
A technology of decision tree classification and detection method, which is applied in the field of HTTP tunnel detection based on decision tree classification algorithm, can solve problems such as poor stability, and achieve the effect of good stability, good stability and low memory consumption
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[0032] 1. Traffic capture.
[0033] Use a traffic acquisition card to capture network traffic at the gateway exit, only capture the uplink traffic with the destination port 80 and the transport protocol as TCP. The cycle is one week, and it is saved in the PCAP file format.
[0034] 2. Network stream recombination and statistical feature calculation.
[0035] Using the University of Cambridge Computer Laboratory ( http: / / www.cl.cam.ac.uk / research / srg / netos / brasil / ) provides a program to complete packet analysis, flow assembly, and flow statistical feature calculation for the captured network data flow.
[0036] 3. Data set screening.
[0037]The dataset consists of two parts: normal HTTP data and HTTP tunnel data. In order to obtain the normal HTTP data flow, first, classify and summarize the data flow according to the destination IP of the data flow analyzed in the second step, and arrange them in descending order. Then, domain name analysis was performed on the top 30 I...
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