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SpoofCard Caller ID Spoofing Cheat Sheet ​

Overview ​

SpoofCard is a commercial caller ID spoofing service that allows users to change their caller ID information when making phone calls. Originally designed for legitimate purposes like privacy protection and business communications, it has become a popular tool in social engineering and vishing (voice phishing) attacks. SpoofCard enables attackers to impersonate trusted entities, making their calls appear to come from banks, government agencies, or other legitimate organizations.

⚠️ Warning: This tool is intended for authorized penetration testing and social engineering awareness training only. Unauthorized use of caller ID spoofing for fraudulent purposes is illegal in many jurisdictions. Ensure you have proper authorization before conducting vishing campaigns.

Service Overview ​

SpoofCard Features ​

bash
# Core Features:
# - Caller ID spoofing (number and name)
# - Voice changing/modulation
# - Call recording
# - Background noise injection
# - SMS spoofing
# - International calling support
# - Mobile app and web interface
# - API access for automation

# Supported Platforms:
# - Web interface (spoofcard.com)
# - iOS mobile app
# - Android mobile app
# - API integration
# - Third-party integrations

Account Setup ​

bash
# Account Registration:
# 1. Visit spoofcard.com
# 2. Create account with email
# 3. Verify phone number
# 4. Purchase credits/subscription
# 5. Download mobile app (optional)

# Credit System:
# - Pay-per-use model
# - Credit packages available
# - Monthly subscriptions
# - Enterprise plans
# - API access tiers

Basic Usage ​

Web Interface ​

bash
# Access SpoofCard Web Interface:
# 1. Login to spoofcard.com
# 2. Navigate to "Make a Call"
# 3. Enter target phone number
# 4. Enter spoofed caller ID number
# 5. Optionally set caller ID name
# 6. Select voice changer (optional)
# 7. Enable call recording (optional)
# 8. Click "Call Now"
# 9. Answer the call when your phone rings
# 10. You'll be connected to target with spoofed ID

# Web Interface Features:
# - Real-time call setup
# - Call history tracking
# - Credit balance monitoring
# - Recording playback
# - Contact management

Mobile App Usage ​

bash
# iOS/Android App:
# 1. Download SpoofCard app
# 2. Login with account credentials
# 3. Tap "Make Call"
# 4. Enter target number
# 5. Enter spoof number
# 6. Configure additional options
# 7. Tap "Call"
# 8. Follow prompts to connect

# Mobile App Features:
# - Contact integration
# - Quick dial presets
# - Voice effects
# - Call recording
# - SMS spoofing
# - Push notifications

API Integration ​

python
# SpoofCard API Usage (Python)
import requests
import json

class SpoofCardAPI:
    def __init__(self, api_key, account_id):
        self.api_key = api_key
        self.account_id = account_id
        self.base_url = "https://api.spoofcard.com/v1"
        self.headers = {
            'Authorization': f'Bearer {api_key}',
            'Content-Type': 'application/json'
        }
    
    def make_call(self, target_number, spoof_number, spoof_name=None, voice_changer=None, record=False):
        """Make a spoofed call"""
        endpoint = f"{self.base_url}/calls"
        
        payload = {
            'account_id': self.account_id,
            'target_number': target_number,
            'spoof_number': spoof_number,
            'spoof_name': spoof_name,
            'voice_changer': voice_changer,
            'record_call': record,
            'callback_url': 'https://your-server.com/webhook'
        }
        
        response = requests.post(endpoint, headers=self.headers, json=payload)
        return response.json()
    
    def send_sms(self, target_number, spoof_number, message):
        """Send spoofed SMS"""
        endpoint = f"{self.base_url}/sms"
        
        payload = {
            'account_id': self.account_id,
            'target_number': target_number,
            'spoof_number': spoof_number,
            'message': message
        }
        
        response = requests.post(endpoint, headers=self.headers, json=payload)
        return response.json()
    
    def get_call_history(self, limit=50):
        """Get call history"""
        endpoint = f"{self.base_url}/calls/history"
        params = {'limit': limit}
        
        response = requests.get(endpoint, headers=self.headers, params=params)
        return response.json()
    
    def get_recordings(self, call_id):
        """Get call recordings"""
        endpoint = f"{self.base_url}/calls/{call_id}/recording"
        
        response = requests.get(endpoint, headers=self.headers)
        return response.json()
    
    def check_balance(self):
        """Check account balance"""
        endpoint = f"{self.base_url}/account/balance"
        
        response = requests.get(endpoint, headers=self.headers)
        return response.json()

# Usage Example
api = SpoofCardAPI('your_api_key', 'your_account_id')

# Make spoofed call
call_result = api.make_call(
    target_number='+1234567890',
    spoof_number='+1800123456',
    spoof_name='Bank Security',
    voice_changer='deeper',
    record=True
)

print(f"Call initiated: {call_result}")

Advanced Techniques ​

Voice Social Engineering Scripts ​

bash
# Bank Impersonation Script:
"Hello, this is [Name] from [Bank Name] Security Department. 
We've detected suspicious activity on your account ending in [last 4 digits].
For your security, we need to verify your identity.
Can you please confirm your full account number and PIN?"

# IT Support Impersonation:
"Hi, this is [Name] from IT Support. 
We're experiencing a security incident and need to verify your credentials.
Can you please provide your username and password so we can secure your account?"

# Government Agency Impersonation:
"This is [Name] from the IRS/Social Security Administration.
There's an urgent matter regarding your account.
We need to verify your Social Security Number and date of birth immediately."

# Utility Company Impersonation:
"This is [Name] from [Utility Company].
Your service will be disconnected today due to non-payment.
To avoid disconnection, please provide your account information and payment details."

Voice Modulation Techniques ​

bash
# SpoofCard Voice Options:
# - Normal (no change)
# - Deeper (lower pitch)
# - Higher (higher pitch)
# - Robotic (electronic effect)
# - Whisper (quiet/secretive)
# - Echo (reverb effect)
# - Slow (reduced speed)
# - Fast (increased speed)

# Voice Training Tips:
# - Practice different accents
# - Study target organization's communication style
# - Use appropriate technical terminology
# - Match the urgency level to the scenario
# - Prepare for common questions/objections

Background Noise Injection ​

bash
# Available Background Sounds:
# - Office environment
# - Call center noise
# - Traffic/street sounds
# - Airport/travel sounds
# - Restaurant/public spaces
# - Static/poor connection
# - Construction noise
# - Emergency sirens

# Strategic Use of Background Noise:
# - Office sounds for business calls
# - Call center noise for support calls
# - Poor connection to limit conversation time
# - Emergency sounds for urgency
# - Public spaces for mobile/urgent calls

Alternative Spoofing Methods ​

Open Source Solutions ​

bash
# Asterisk PBX Setup for Caller ID Spoofing
# Install Asterisk
sudo apt update
sudo apt install asterisk

# Configure extensions.conf
sudo tee -a /etc/asterisk/extensions.conf << 'EOF'
[spoofing]
exten => _X.,1,Set(CALLERID(num)=${ARG1})
exten => _X.,n,Set(CALLERID(name)=${ARG2})
exten => _X.,n,Dial(SIP/${EXTEN}@provider)
EOF

# Configure sip.conf for SIP provider
sudo tee -a /etc/asterisk/sip.conf << 'EOF'
[provider]
type=peer
host=sip.provider.com
username=your_username
secret=your_password
context=spoofing
EOF

# Restart Asterisk
sudo systemctl restart asterisk

# Make spoofed call
asterisk -rx "originate Local/1234567890@spoofing extension 100@default"

SIP-based Spoofing ​

python
# Python SIP spoofing with pjsua
import pjsua as pj

class SIPSpoofer:
    def __init__(self):
        self.lib = pj.Lib()
        self.account = None
    
    def initialize(self, sip_server, username, password):
        """Initialize SIP library and account"""
        try:
            # Initialize library
            self.lib.init(log_cfg=pj.LogConfig(level=3, callback=self.log_cb))
            
            # Create transport
            transport = self.lib.create_transport(pj.TransportType.UDP, 
                                                pj.TransportConfig(5060))
            
            # Start library
            self.lib.start()
            
            # Create account
            acc_cfg = pj.AccountConfig()
            acc_cfg.id = f"sip:{username}@{sip_server}"
            acc_cfg.reg_uri = f"sip:{sip_server}"
            acc_cfg.auth_cred = [pj.AuthCred("*", username, password)]
            
            self.account = self.lib.create_account(acc_cfg)
            
            print("[+] SIP account initialized successfully")
            return True
            
        except pj.Error as e:
            print(f"[-] SIP initialization failed: {e}")
            return False
    
    def make_spoofed_call(self, target_number, spoof_number, spoof_name=None):
        """Make call with spoofed caller ID"""
        try:
            # Set caller ID
            call_cfg = pj.CallConfig()
            call_cfg.vid_cnt = 0
            
            # Create custom headers for spoofing
            headers = []
            headers.append(f"From: \"{spoof_name or spoof_number}\" <sip:{spoof_number}@spoofed.com>")
            headers.append(f"P-Asserted-Identity: <sip:{spoof_number}@spoofed.com>")
            headers.append(f"Remote-Party-ID: \"{spoof_name or spoof_number}\" <sip:{spoof_number}@spoofed.com>")
            
            # Make call
            call = self.account.make_call(f"sip:{target_number}@sip.provider.com", 
                                        call_cfg, headers)
            
            print(f"[+] Spoofed call initiated to {target_number} from {spoof_number}")
            return call
            
        except pj.Error as e:
            print(f"[-] Call failed: {e}")
            return None
    
    def log_cb(self, level, str, len):
        """Logging callback"""
        print(f"[SIP] {str.strip()}")
    
    def cleanup(self):
        """Cleanup SIP resources"""
        if self.lib:
            self.lib.destroy()

# Usage
spoofer = SIPSpoofer()
if spoofer.initialize("sip.provider.com", "username", "password"):
    call = spoofer.make_spoofed_call("+1234567890", "+1800123456", "Bank Security")
    
    # Keep call active
    input("Press Enter to hang up...")
    
    if call:
        call.hangup()
    
    spoofer.cleanup()

FreePBX Integration ​

bash
# Install FreePBX for advanced call routing
# Download and install FreePBX
wget http://mirror.freepbx.org/modules/packages/freepbx/freepbx-15.0-latest.tgz
tar xzf freepbx-15.0-latest.tgz
cd freepbx

# Install dependencies
sudo apt install apache2 mysql-server php php-mysql php-mbstring

# Configure FreePBX
sudo ./install -n

# Access web interface at http://localhost/admin
# Configure trunks and outbound routes for spoofing

# Custom dialplan for spoofing
# Add to extensions_custom.conf:
[custom-spoofing]
exten => _X.,1,Set(CALLERID(num)=${CALLERID(num):0:10})
exten => _X.,n,Set(CALLERID(name)=Spoofed Name)
exten => _X.,n,Dial(${TRUNK}/${EXTEN})

Automation and Scripting ​

Automated Vishing Campaign ​

python
#!/usr/bin/env python3
# Automated vishing campaign using SpoofCard API

import csv
import time
import random
import logging
from datetime import datetime
from spoofcard_api import SpoofCardAPI

class VishingCampaign:
    def __init__(self, api_key, account_id):
        self.api = SpoofCardAPI(api_key, account_id)
        self.targets = []
        self.results = []
        self.scripts = {}
        
        # Setup logging
        logging.basicConfig(
            level=logging.INFO,
            format='%(asctime)s - %(levelname)s - %(message)s',
            handlers=[
                logging.FileHandler('vishing_campaign.log'),
                logging.StreamHandler()
            ]
        )
        self.logger = logging.getLogger(__name__)
    
    def load_targets(self, csv_file):
        """Load target list from CSV file"""
        try:
            with open(csv_file, 'r') as f:
                reader = csv.DictReader(f)
                self.targets = list(reader)
            
            self.logger.info(f"Loaded {len(self.targets)} targets from {csv_file}")
            return True
            
        except Exception as e:
            self.logger.error(f"Failed to load targets: {e}")
            return False
    
    def load_scripts(self, scripts_file):
        """Load vishing scripts from JSON file"""
        try:
            with open(scripts_file, 'r') as f:
                self.scripts = json.load(f)
            
            self.logger.info(f"Loaded {len(self.scripts)} scripts")
            return True
            
        except Exception as e:
            self.logger.error(f"Failed to load scripts: {e}")
            return False
    
    def select_spoof_number(self, target_info):
        """Select appropriate spoof number based on target"""
        # Bank numbers for financial targets
        bank_numbers = [
            '+18001234567',  # Generic bank
            '+18009876543',  # Credit union
            '+18005551234'   # Investment firm
        ]
        
        # Government numbers
        gov_numbers = [
            '+18001234567',  # IRS
            '+18009876543',  # Social Security
            '+18005551234'   # Medicare
        ]
        
        # IT support numbers
        it_numbers = [
            '+18001234567',  # Microsoft
            '+18009876543',  # Apple
            '+18005551234'   # Google
        ]
        
        # Select based on target type or random
        target_type = target_info.get('type', 'general')
        
        if target_type == 'financial':
            return random.choice(bank_numbers)
        elif target_type == 'government':
            return random.choice(gov_numbers)
        elif target_type == 'tech':
            return random.choice(it_numbers)
        else:
            return random.choice(bank_numbers + gov_numbers + it_numbers)
    
    def make_vishing_call(self, target):
        """Make individual vishing call"""
        try:
            # Select spoof number and script
            spoof_number = self.select_spoof_number(target)
            script_type = target.get('script_type', 'bank')
            script = self.scripts.get(script_type, {})
            
            # Prepare call parameters
            call_params = {
                'target_number': target['phone'],
                'spoof_number': spoof_number,
                'spoof_name': script.get('caller_name', 'Security Department'),
                'voice_changer': script.get('voice_effect', 'normal'),
                'record': True
            }
            
            # Log call attempt
            self.logger.info(f"Calling {target['phone']} from {spoof_number}")
            
            # Make call
            result = self.api.make_call(**call_params)
            
            # Record result
            call_result = {
                'timestamp': datetime.now().isoformat(),
                'target_phone': target['phone'],
                'target_name': target.get('name', 'Unknown'),
                'spoof_number': spoof_number,
                'script_type': script_type,
                'call_id': result.get('call_id'),
                'status': result.get('status'),
                'success': result.get('success', False)
            }
            
            self.results.append(call_result)
            
            if call_result['success']:
                self.logger.info(f"Call successful: {target['phone']}")
            else:
                self.logger.warning(f"Call failed: {target['phone']} - {result.get('error')}")
            
            return call_result
            
        except Exception as e:
            self.logger.error(f"Call error for {target['phone']}: {e}")
            return None
    
    def run_campaign(self, delay_min=30, delay_max=300):
        """Run complete vishing campaign"""
        self.logger.info(f"Starting vishing campaign with {len(self.targets)} targets")
        
        for i, target in enumerate(self.targets):
            # Make call
            result = self.make_vishing_call(target)
            
            # Random delay between calls
            if i < len(self.targets) - 1:  # Don't delay after last call
                delay = random.randint(delay_min, delay_max)
                self.logger.info(f"Waiting {delay} seconds before next call...")
                time.sleep(delay)
        
        # Generate final report
        self.generate_report()
        
        self.logger.info("Vishing campaign completed")
    
    def generate_report(self):
        """Generate campaign report"""
        try:
            total_calls = len(self.results)
            successful_calls = len([r for r in self.results if r['success']])
            success_rate = (successful_calls / total_calls * 100) if total_calls > 0 else 0
            
            report = {
                'campaign_summary': {
                    'total_targets': len(self.targets),
                    'total_calls': total_calls,
                    'successful_calls': successful_calls,
                    'success_rate': f"{success_rate:.2f}%",
                    'start_time': self.results[0]['timestamp'] if self.results else None,
                    'end_time': self.results[-1]['timestamp'] if self.results else None
                },
                'detailed_results': self.results
            }
            
            # Save report
            timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
            report_file = f"vishing_report_{timestamp}.json"
            
            with open(report_file, 'w') as f:
                json.dump(report, f, indent=2)
            
            self.logger.info(f"Campaign report saved: {report_file}")
            self.logger.info(f"Success rate: {success_rate:.2f}% ({successful_calls}/{total_calls})")
            
        except Exception as e:
            self.logger.error(f"Failed to generate report: {e}")

# Usage example
def main():
    # Initialize campaign
    campaign = VishingCampaign('your_api_key', 'your_account_id')
    
    # Load targets and scripts
    if campaign.load_targets('targets.csv') and campaign.load_scripts('scripts.json'):
        # Run campaign
        campaign.run_campaign(delay_min=60, delay_max=300)
    else:
        print("Failed to load campaign data")

if __name__ == "__main__":
    main()

Target List Management ​

python
# Target list generator and manager
import csv
import json
import random
from faker import Faker

class TargetListManager:
    def __init__(self):
        self.fake = Faker()
        self.targets = []
    
    def generate_test_targets(self, count=100):
        """Generate test target list"""
        target_types = ['financial', 'government', 'tech', 'general']
        
        for _ in range(count):
            target = {
                'name': self.fake.name(),
                'phone': self.fake.phone_number(),
                'email': self.fake.email(),
                'type': random.choice(target_types),
                'script_type': random.choice(['bank', 'irs', 'tech_support']),
                'priority': random.choice(['high', 'medium', 'low']),
                'notes': self.fake.text(max_nb_chars=100)
            }
            self.targets.append(target)
    
    def save_targets_csv(self, filename):
        """Save targets to CSV file"""
        if not self.targets:
            return False
        
        fieldnames = self.targets[0].keys()
        
        with open(filename, 'w', newline='') as f:
            writer = csv.DictWriter(f, fieldnames=fieldnames)
            writer.writeheader()
            writer.writerows(self.targets)
        
        return True
    
    def load_targets_csv(self, filename):
        """Load targets from CSV file"""
        try:
            with open(filename, 'r') as f:
                reader = csv.DictReader(f)
                self.targets = list(reader)
            return True
        except:
            return False
    
    def filter_targets(self, criteria):
        """Filter targets based on criteria"""
        filtered = []
        
        for target in self.targets:
            match = True
            
            for key, value in criteria.items():
                if key in target and target[key] != value:
                    match = False
                    break
            
            if match:
                filtered.append(target)
        
        return filtered

# Usage
manager = TargetListManager()
manager.generate_test_targets(50)
manager.save_targets_csv('test_targets.csv')

Script Templates ​

json
{
  "bank": {
    "caller_name": "Bank Security",
    "voice_effect": "normal",
    "script": "Hello, this is {caller_name} from {bank_name}. We've detected suspicious activity on your account. For security purposes, we need to verify your identity. Can you please confirm your account number and PIN?",
    "followup_questions": [
      "What was your last transaction amount?",
      "Can you verify your mother's maiden name?",
      "What is your date of birth?"
    ],
    "urgency_phrases": [
      "immediate action required",
      "account will be frozen",
      "suspicious activity detected"
    ]
  },
  "irs": {
    "caller_name": "IRS Agent",
    "voice_effect": "deeper",
    "script": "This is {caller_name} from the Internal Revenue Service. There's an urgent matter regarding your tax return. You have unpaid taxes and penalties. To avoid legal action, we need to process payment immediately.",
    "followup_questions": [
      "What is your Social Security Number?",
      "Can you confirm your full name and address?",
      "Do you have access to online banking?"
    ],
    "urgency_phrases": [
      "legal action will be taken",
      "arrest warrant issued",
      "immediate payment required"
    ]
  },
  "tech_support": {
    "caller_name": "Microsoft Support",
    "voice_effect": "normal",
    "script": "Hello, this is {caller_name} from Microsoft Technical Support. We've detected malware on your computer that's compromising your personal information. We need remote access to fix this immediately.",
    "followup_questions": [
      "Are you near your computer?",
      "Can you see the Windows key?",
      "What antivirus software do you use?"
    ],
    "urgency_phrases": [
      "computer is infected",
      "personal data at risk",
      "immediate action needed"
    ]
  }
}

Integration with Other Tools ​

GoPhish Integration ​

python
# Combine SpoofCard with GoPhish for multi-vector attacks
import requests
from spoofcard_api import SpoofCardAPI

class MultiVectorCampaign:
    def __init__(self, spoofcard_api, gophish_api):
        self.spoofcard = spoofcard_api
        self.gophish = gophish_api
    
    def run_coordinated_attack(self, target):
        """Run coordinated email + voice attack"""
        # Send phishing email first
        email_result = self.gophish.send_email(
            target['email'],
            'Account Security Alert',
            'Your account requires immediate verification'
        )
        
        # Wait for email to be delivered
        time.sleep(300)  # 5 minutes
        
        # Follow up with spoofed call
        call_result = self.spoofcard.make_call(
            target['phone'],
            '+18001234567',
            'Security Department'
        )
        
        return {
            'email_result': email_result,
            'call_result': call_result
        }

Social Media Intelligence ​

python
# Gather intelligence for targeted vishing
import requests
from bs4 import BeautifulSoup

class SocialIntelligence:
    def __init__(self):
        self.session = requests.Session()
    
    def gather_target_info(self, target_name, target_phone):
        """Gather information about target"""
        info = {
            'name': target_name,
            'phone': target_phone,
            'social_profiles': [],
            'employer': None,
            'interests': [],
            'family_members': []
        }
        
        # Search social media platforms
        # LinkedIn, Facebook, Twitter, etc.
        # (Implementation would depend on available APIs)
        
        return info
    
    def customize_script(self, target_info, base_script):
        """Customize vishing script based on target info"""
        customized = base_script
        
        # Personalize with gathered information
        if target_info.get('employer'):
            customized = customized.replace(
                'your company',
                target_info['employer']
            )
        
        if target_info.get('interests'):
            # Add relevant context based on interests
            pass
        
        return customized

Call Recording Analysis ​

python
# Analyze call recordings for success indicators
import speech_recognition as sr
from pydub import AudioSegment

class CallAnalyzer:
    def __init__(self):
        self.recognizer = sr.Recognizer()
    
    def analyze_recording(self, audio_file):
        """Analyze call recording for success indicators"""
        try:
            # Convert to WAV if needed
            audio = AudioSegment.from_file(audio_file)
            audio.export("temp.wav", format="wav")
            
            # Transcribe audio
            with sr.AudioFile("temp.wav") as source:
                audio_data = self.recognizer.record(source)
                transcript = self.recognizer.recognize_google(audio_data)
            
            # Analyze transcript for success indicators
            success_indicators = [
                'account number', 'social security', 'password',
                'pin number', 'date of birth', 'mother maiden name'
            ]
            
            indicators_found = []
            for indicator in success_indicators:
                if indicator.lower() in transcript.lower():
                    indicators_found.append(indicator)
            
            return {
                'transcript': transcript,
                'success_indicators': indicators_found,
                'success_score': len(indicators_found) / len(success_indicators)
            }
            
        except Exception as e:
            return {'error': str(e)}
bash
# Legal Framework:
# - Caller ID spoofing laws vary by jurisdiction
# - Truth in Caller ID Act (US) - prohibits malicious spoofing
# - Telephone Consumer Protection Act (TCPA)
# - General Data Protection Regulation (GDPR) - EU
# - Personal Information Protection and Electronic Documents Act (PIPEDA) - Canada

# Authorized Testing Requirements:
# - Written authorization from target organization
# - Clear scope and limitations
# - Data protection agreements
# - Incident response procedures
# - Legal review of testing methodology

Compliance Documentation ​

bash
# Required Documentation:
# 1. Authorization Letter
# 2. Scope of Work (SOW)
# 3. Rules of Engagement (ROE)
# 4. Data Handling Procedures
# 5. Incident Response Plan
# 6. Final Report Template

# Example Authorization Letter:
"[Organization] hereby authorizes [Tester] to conduct social engineering 
testing including voice phishing (vishing) attacks against specified 
employees for the purpose of security awareness assessment. This 
authorization is valid from [start date] to [end date] and covers 
the following activities: [list activities]."

Data Protection ​

python
# Secure data handling for vishing campaigns
import cryptography
from cryptography.fernet import Fernet

class SecureDataHandler:
    def __init__(self):
        self.key = Fernet.generate_key()
        self.cipher = Fernet(self.key)
    
    def encrypt_target_data(self, data):
        """Encrypt sensitive target information"""
        json_data = json.dumps(data)
        encrypted = self.cipher.encrypt(json_data.encode())
        return encrypted
    
    def decrypt_target_data(self, encrypted_data):
        """Decrypt target information"""
        decrypted = self.cipher.decrypt(encrypted_data)
        return json.loads(decrypted.decode())
    
    def secure_delete(self, filename):
        """Securely delete sensitive files"""
        import os
        import random
        
        # Overwrite file with random data
        filesize = os.path.getsize(filename)
        with open(filename, "r+b") as f:
            for _ in range(3):  # Multiple passes
                f.seek(0)
                f.write(os.urandom(filesize))
                f.flush()
                os.fsync(f.fileno())
        
        # Delete file
        os.remove(filename)

Defensive Measures ​

Detection Techniques ​

bash
# Caller ID Spoofing Detection:
# - Callback verification
# - Voice pattern analysis
# - Call timing analysis
# - Caller behavior assessment
# - Technical indicators (audio quality, background noise)

# Organizational Defenses:
# - Employee training programs
# - Verification procedures
# - Callback policies
# - Incident reporting systems
# - Regular security awareness updates

Employee Training ​

bash
# Vishing Awareness Training Topics:
# 1. Common vishing techniques
# 2. Caller ID spoofing capabilities
# 3. Verification procedures
# 4. Red flags and warning signs
# 5. Proper incident reporting
# 6. Company policies and procedures

# Training Scenarios:
# - Bank impersonation calls
# - IT support scams
# - Government agency impersonation
# - Vendor/supplier verification
# - Emergency situations

Technical Countermeasures ​

python
# Implement caller verification system
class CallerVerification:
    def __init__(self):
        self.trusted_numbers = set()
        self.verification_codes = {}
    
    def add_trusted_number(self, number, organization):
        """Add trusted caller number"""
        self.trusted_numbers.add((number, organization))
    
    def verify_caller(self, caller_number, claimed_organization):
        """Verify if caller is legitimate"""
        # Check against trusted numbers
        if (caller_number, claimed_organization) in self.trusted_numbers:
            return True
        
        # Generate verification code for callback
        import random
        code = random.randint(100000, 999999)
        self.verification_codes[caller_number] = code
        
        return False
    
    def callback_verification(self, number, provided_code):
        """Verify callback with code"""
        expected_code = self.verification_codes.get(number)
        return expected_code == provided_code

Troubleshooting ​

Common Issues ​

bash
# SpoofCard Service Issues:
# - Insufficient credits
# - Invalid phone numbers
# - Service outages
# - API rate limits
# - Account restrictions

# Technical Problems:
# - Poor call quality
# - Connection failures
# - Recording issues
# - Voice changer problems
# - Mobile app crashes

# Solutions:
# - Check account balance
# - Verify phone number formats
# - Test with different numbers
# - Contact SpoofCard support
# - Use alternative spoofing methods

Alternative Services ​

bash
# Other Caller ID Spoofing Services:
# - SpoofTel
# - Fake Caller ID
# - Caller ID Faker
# - Spoof My Phone
# - Bluff My Call

# Open Source Alternatives:
# - Asterisk PBX
# - FreePBX
# - SIP clients with spoofing
# - VoIP providers with CLI modification
# - Custom SIP implementations

Quality Assurance ​

bash
# Call Quality Checklist:
# - Clear audio quality
# - Appropriate background noise
# - Consistent caller ID display
# - Voice changer effectiveness
# - Recording functionality
# - Connection stability

# Testing Procedures:
# - Test calls to known numbers
# - Verify caller ID display
# - Check recording quality
# - Test voice effects
# - Validate API responses
# - Monitor success rates

Best Practices ​

Campaign Planning ​

  1. Target Research: Gather comprehensive information about targets
  2. Script Development: Create convincing, personalized scripts
  3. Timing Strategy: Call during optimal hours for target demographics
  4. Voice Training: Practice delivery and handle objections
  5. Technical Setup: Test all equipment and services beforehand

Operational Security ​

bash
# OPSEC Considerations:
# - Use anonymous payment methods
# - Rotate spoofed numbers
# - Vary call timing patterns
# - Use different voice effects
# - Avoid repeated targeting
# - Monitor for detection

# Infrastructure Security:
# - Use VPN/Tor for API access
# - Secure data storage
# - Encrypted communications
# - Regular security audits
# - Incident response procedures

Ethical Guidelines ​

bash
# Ethical Vishing Testing:
# - Obtain proper authorization
# - Limit scope to agreed targets
# - Protect captured information
# - Provide security awareness training
# - Document lessons learned
# - Follow responsible disclosure

# Post-Campaign Actions:
# - Immediate debriefing
# - Security awareness training
# - Policy recommendations
# - Technical improvements
# - Regular follow-up assessments

Resources ​

This cheat sheet provides a comprehensive reference for using SpoofCard and related caller ID spoofing techniques. Always ensure you have proper authorization before conducting vishing campaigns or voice-based social engineering tests.