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|1. (WO2018040944) SYSTEM, METHOD, AND DEVICE FOR IDENTIFYING MALICIOUS ADDRESS/MALICIOUS PURCHASE ORDER|
|Applicants:||ALIBABA GROUP HOLDING LIMITED
|Title:||SYSTEM, METHOD, AND DEVICE FOR IDENTIFYING MALICIOUS ADDRESS/MALICIOUS PURCHASE ORDER|
The present invention relates to the technical field of the Internet, and discloses a system, method, and device for identifying a malicious address/malicious purchase order, solving the problem of a poor identification rate of malicious addresses/malicious purchase orders in the prior art. The method of the present invention primarily comprises: receiving an address to be identified and sent by a client end; processing the address to be identified to obtain address levels, and acquiring all address levels of the address to be identified; calculating, by employing an address level jump probability distribution obtained by analyzing past normal addresses, for each of the address levels, a jump probability of jumping from said address level in the address to be identified to the next adjacent address level, the address level jump probability distribution comprising jump probabilities of jumping from an arbitrary address level to another address level; and multiplying all acquired jump probabilities to acquire a probability of the address to be identified being a normal address.