CAS Antivirus

Lightweight Security. Powerful Protection. CAS Antivirus is a lightweight yet powerful security plugin designed to protect WordPress websites through an intuitive, modern and easy-to-use interface. Whether you manage a personal blog, a business website or an online store, CAS Antivirus helps defend your WordPress installation against common security threats without compromising performance. It is suitable for both beginners and advanced users looking for reliable protection with minimal configuration. Unlike many free security plugins, CAS Antivirus includes a powerful malware scanner with WordPress core integrity verification and automatic core restoration. Modified core files can be detected and restored safely using the official WordPress core. The plugin also provides six essential HTTP Security Headers to improve browser-level security together with Two-Factor Authentication (TOTP) to protect administrator accounts from unauthorized access. All QR codes are generated locally, ensuring authentication data never depends on third-party services. Why Choose CAS Antivirus?

• Lightweight and optimized for performance.
• No third-party services: only official WordPress.org endpoints (see External services).
• Local QR code generation for maximum privacy.
• Automatic WordPress core restoration.
• Easy to configure with a modern interface.
• Fully translated into 19 languages.

CAS Antivirus is fully translated into 19 languages: English, Spanish, French, German, Italian, Danish, Portuguese, Polish, Dutch, Swedish, Finnish, Norwegian Bokmål, Russian, Chinese, Japanese, Czech, Romanian, Hungarian and Slovak, providing a native experience for WordPress users worldwide. Free Features

• Malware scanner with WordPress core integrity verification.
• Automatic WordPress core restoration.
• Six essential HTTP Security Headers.
• Two-Factor Authentication (TOTP).
• Local QR code generation.
• Modern and intuitive administration interface.
• Fully translated into 19 languages.

Professional Features The Pro version includes everything in the Free version, plus:

• Advanced real-time firewall.
• Additional security hardening shields.
• Custom login URL protection.
• Custom 404 page.
• Login activity monitoring.
• Failed login log.
• Security event logging.
• Additional monitoring tools.
• Extra security modules.

The free version provides essential protection for WordPress, while the Pro version delivers a complete security suite with advanced firewall protection, monitoring and access control.

3.1

• Added Two-Factor Authentication (TOTP).
• Added local QR code generation.
• Added WordPress core restoration.
• Improved malware scanner.
• Improved HTTP Security Headers.
• Performance improvements.
• Various bug fixes.

3.0

• Initial public release.
• 6 HTTP Security Headers.
• Malware scanner with WordPress core integrity verification.
• Automatic WordPress core restoration.