Method and device for wireless terminal identifying pseudo-wifi network

Abstract

The invention relates to the field of wireless networks, and discloses a method and a device for a wireless terminal to identify a pseudo-WiFi network. In the present invention, the following steps are included: monitoring whether there is a four-way handshake packet in the current network communication data packet; if there is a four-way handshake packet, at least perform one of the following steps or a combination thereof: Step A, judge the four-way handshake packet Whether the handshake information in is consistent with the handshake information used when accessing the WiFi network last time, if not, it is determined that the current WiFi network has the risk of belonging to a pseudo WiFi network; step B, after accessing the WiFi network, obtain the specified IP The first route of the address is to determine whether the first route is consistent with the second route to the specified IP address when accessing the WiFi network last time, and if not, it is determined that the current WiFi network has a risk of belonging to a pseudo WiFi network. A more accurate identification method is given for pseudo-WiFi networks to reduce misjudgments and missed judgments.

Description

technical field [0001] The invention relates to the field of wireless networks, in particular to a technology for a wireless terminal to identify a pseudo-WiFi network. Background technique [0002] In a wired network, the data packets are delivered to the target node on the physical link. Usually, the data may be leaked only when the physical link is directly connected to the physical link or the physical link is damaged. Malicious behavior is possible. In a wireless network, data is transmitted through wireless electromagnetic waves, and no specific propagation medium is required. As long as the terminal nodes are within the coverage of radio waves, the terminal nodes can receive wireless signals to obtain data. Therefore, data leakage and malicious behavior are more likely to occur. . The principle of fake WiFi is to build a false network access point (AccessPoint, referred to as "AP") controlled by the attacker, attracting users to connect to the AP, so that all data t...

AI Technical Summary

Problems solved by technology

Attack-type pseudo WiFi is to force the user to switch to a pseudo WiFi line through attack behavior after the user has connected to a real WiFi network, which cannot be identified by existing technical solutions

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