Method and device for recognizing pseudo WiFi network by wireless terminal

Abstract

The invention relates to the wireless network field, and discloses a method and a device for recognizing a pseudo WiFi network by a wireless terminal. The method comprises the following steps: whether four handshake packets appear in the current network communication data packet is monitored; if yes, at least one following step or a step combination is executed: A, whether the handshake information in the four handshake packets is consistent with the handshake information used when the WiFi network is accessed last time, if not consistent, the current WiFi network is determined to have a risk of belonging to a pseudo WiFi network; and B, after the WiFi network is accessed, a first route arriving at a specified IP address is acquired, whether the first route is consistent with a second route arriving at the specified IP address when the WiFi network is accessed last time is judged, and if not consistent, the current WiFi network is determined to have a risk of belonging to a pseudo WiFi network. A more precise recognition method is given to the pseudo WiFi network, and error judgment and missed judgment can be reduced.

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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