Detect WooCommerce Malware & Credit Card Skimmers
Free security scanner to detect malware, payment hijacking, credit card skimmers, and hidden malicious code in WordPress WooCommerce stores.
Critical Threat to WooCommerce Stores
WooCommerce stores are prime targets for credit card skimming malware. Hackers inject malicious code that steals customer payment information during checkout, leading to financial losses, chargebacks, and destroyed reputation.
Average cost of a WooCommerce breach: $50,000 - $200,000 (including fines, legal fees, lost sales, and reputation damage)
Common WooCommerce Malware Attacks
💳 Credit Card Skimmers (Magecart)
Malicious JavaScript injected into checkout pages that captures credit card numbers, CVV codes, and billing information before they reach your payment processor.
What Our Scanner Detects:
- ✓ Obfuscated JavaScript in checkout pages
- ✓ Event listeners on payment form fields
- ✓ Base64-encoded data exfiltration code
- ✓ External script injections from unknown domains
🔀 Payment Gateway Hijacking
Malware that redirects customers to fake payment pages that look identical to your real checkout, stealing full payment details.
What Our Scanner Detects:
- ✓ Suspicious redirects during checkout process
- ✓ Hidden iframes loading external payment forms
- ✓ Modified payment gateway URLs
- ✓ JavaScript redirects to phishing domains
🪟 Hidden Admin Backdoors
Malicious code that creates hidden admin accounts or backdoor access, allowing hackers to maintain persistent access to your store.
What Our Scanner Detects:
- ✓ eval() and base64_decode() in PHP files
- ✓ Obfuscated admin creation scripts
- ✓ Hidden file upload functionality
- ✓ Suspicious external connections
📧 Customer Data Exfiltration
Malware that silently collects customer emails, addresses, and order history, sending them to attacker-controlled servers.
What Our Scanner Detects:
- ✓ Hidden form submissions to external domains
- ✓ AJAX requests to suspicious endpoints
- ✓ Base64-encoded data transmission
- ✓ Cookie theft and session hijacking code
Warning Signs Your WooCommerce Store is Infected
Sudden Drop in Conversions
Customers abandon checkout at unusually high rates
Chargeback Spike
Increase in fraudulent transactions and chargebacks
Slow Checkout Pages
Payment pages load slower than usual
Unknown Files in wp-content
Suspicious PHP or JS files you didn't create
Google Safe Browsing Warning
"Deceptive site ahead" or malware warnings
Customer Complaints
Reports of unauthorized charges or fraud
Unauthorized Admin Users
Unknown admin accounts in WordPress
Unusual Server Traffic
Spike in outbound connections to unknown IPs
How to Scan Your WooCommerce Store
Scan Your Homepage
Start by scanning your main store URL to detect any cloaking or malicious redirects.
https://yourstore.com
Scan Checkout Page
Most critical - scan your checkout page where credit card skimmers are typically injected.
https://yourstore.com/checkout
Scan Product Pages
Check high-traffic product pages for injected malware or suspicious scripts.
https://yourstore.com/product/your-bestseller
Review Scan Results
Look for these critical indicators:
- High/Critical severity: Immediate action required
- Obfuscated JavaScript: eval(), base64, hex encoding
- Hidden iframes: External domains loading in checkout
- Suspicious redirects: Unexpected payment gateway URLs
- External script sources: Unknown CDNs or domains
Real-World Case Study
Fashion E-commerce Store - $85,000 in Losses
Industry: Fashion & Apparel | Platform: WordPress + WooCommerce
The Problem:
A mid-sized fashion store noticed conversion rates dropped from 3.2% to 0.8% over two weeks. Customers complained about payment errors, and chargebacks increased by 400%.
What Our Scanner Found:
- Base64-encoded JavaScript in
wp-content/themes/storefront/footer.php - Hidden iframe loading fake Stripe payment form from external domain
- Event listener capturing all form input on checkout page
- Obfuscated code sending data to attacker's server in Romania
The Impact:
- 427 customer credit cards compromised
- $85,000 in chargebacks and refunds
- $15,000 in PCI compliance fines
- 2 months to recover customer trust
- Payment processor threatened to terminate account
✅ How It Was Fixed:
- Removed malicious code from theme files
- Changed all WordPress admin passwords
- Updated all plugins and themes to latest versions
- Implemented weekly security scans with our tool
- Added Web Application Firewall (WAF)
💡 Key Lesson: The store owner had installed a nulled (pirated) premium theme from a "free download" site. The theme contained pre-installed malware. Always use legitimate themes and plugins from official sources.
Immediate Actions If Malware is Detected
🚨 Step 1: Take Store Offline (Critical)
Enable WordPress maintenance mode immediately to prevent further customer data theft.
Install "WP Maintenance Mode" plugin or add to wp-config.php:
define('WP_MAINTENANCE_MODE', true);
🔐 Step 2: Change All Passwords
Change passwords for: WordPress admin, hosting control panel, FTP, database, and all admin users.
🗑️ Step 3: Remove Malicious Code
Delete or clean infected files identified in scan results. Check theme files, plugin folders, and wp-content/uploads.
🔄 Step 4: Update Everything
Update WordPress core, all plugins, and themes to latest versions. Delete unused plugins/themes.
🔍 Step 5: Scan for Backdoors
Use our scanner again + Wordfence/Sucuri to ensure all malware is removed. Check for hidden admin accounts.
📧 Step 6: Notify Customers
If payment data was compromised, notify affected customers and your payment processor. Legal requirement in most jurisdictions.
🛡️ Step 7: Implement Security Measures
Install security plugin (Wordfence/iThemes Security), enable 2FA, implement WAF, and schedule weekly scans.
Prevention Best Practices
Use Official Themes/Plugins Only
Never install nulled or pirated themes. They often contain pre-installed malware.
Keep Everything Updated
Update WordPress, plugins, and themes within 24 hours of new releases.
Enable 2FA for Admin
Require two-factor authentication for all admin accounts.
Regular Security Scans
Scan your store weekly with our tool + Wordfence/Sucuri.
Use Strong Passwords
16+ character passwords with password manager. Change every 90 days.
Limit Admin Access
Only give admin access to trusted users. Use role-based permissions.
Implement WAF
Use Cloudflare or Sucuri WAF to block malicious traffic.
Daily Backups
Automated daily backups stored off-site. Test restoration monthly.
Why WooCommerce Stores Are Targeted
High-Value Data
Credit cards, addresses, and personal information worth $5-$50 per record on dark web.
Easy Targets
Many stores use outdated plugins, weak passwords, and lack security monitoring.
Scale
30% of all e-commerce sites use WooCommerce - massive attack surface for hackers.
Protect Your WooCommerce Store Today
Free security scan - detect malware, credit card skimmers, and payment hijacking in under 60 seconds.
100% Free • No Registration • Results in 30-60 Seconds