A penetration tester attempts to obtain the preshared key for a client ' s wireless network. Which of the following actions will most likely aid the tester?
Obtaining a wireless preshared key (PSK) in a WPA/WPA2-Personal environment typically relies on capturing the 4-way handshake (or equivalent key exchange) between a client and the access point. PenTest+ emphasizes that the handshake is captured when a client authenticates or reauthenticates to the network; once the handshake is collected, the tester can attempt an offline password attack to determine the PSK (subject to rules of engagement and authorization).
Using aireplay-ng to perform a deauthentication attack forces connected clients to disconnect and then automatically reconnect, which triggers a new handshake that can be captured by the tester’s monitoring interface. This directly supports the goal of acquiring material needed to recover the PSK.
An evil twin (A) and captive portal (C) are social-engineering approaches more aligned with credential harvesting for enterprise/portal-based access, not reliably extracting a WPA2-PSK. Password spraying with Hydra (B) targets online login services and is not applicable to cracking a WPA/WPA2 PSK, which is derived from the handshake and performed offline.
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