Defender Security – Malware Scanner, Login Security & Firewall
Keep your sites safe from hackers, brute force attacks and malware with Defender, your easy-to-set-up, enterprise-level security plugin. With Defender, you can rely on the protection of a firewall, one-click hardening and 2FA, without having to be a cybersecurity expert. As hackers continue to evolve, you know you need to stay on top of your site’s security. But you don’t have the time to learn to code, stay abreast of every emerging threat, or apply complicated technical settings. Defender is here to give you the powerful security tools you need, without the technical headaches. Trusted by over 1 million WordPress users, this plugin works immediately with no confusing setup. Just activate Defender and let it handle the rest! Trusted by 1+ Million Sites | 4.8/5 Star Rating Defender makes it easy to: Run on-demand malware scans to find suspicious files and code Block malicious IPs with a global firewall Enforce strong passwords, 2FA, and login limits Apply recommended hardening settings in one click Get clear reports that show what needs attention Protect against compromised passwords before they are used on your site Free Malware Scanner: Stop security threats before they harm your site If your site has been infected by malware, this malicious code can cause a lot of damage before you even realize it’s there. Hackers use malware, often hidden in themes, extensions and plugins, to steal personal data, encrypt files for ransom, or spy on your activity. Defender gives you a highly-effective yet easy-to-use malware scanner that runs deep diagnostics across your entire site, making sure no malware is lurking in the shadows. Defender will scan your site for: Files that have changed unexpectedly: The scan will compare all core files and extensions against the official WordPress repository and flag any modifications or rogue additions instantly. Known vulnerabilities: Defender will check verified exploit registries to catch any security gaps in your active themes, plugins and core version, and help you fix them before they can be targeted. Suspicious code: By continually checking your server files, Defender will spot any potential code injections or backdoors, a common way bad actors try to gain access to your site. Outdated & removed plugins: Plugins that have been delisted from the repository or have not been updated in over two years become a significant risk to your site’s integrity. Defender flags these weak spots before they can cause a problem. AntiBot Global Firewall: Block harmful IPs with data from over 750,000 sites Put the collective threat intelligence of a massive network to work for your site. Powered by real-time threat data from over 750,000+ sites, the free AntiBot Global Firewall automatically blocks harmful traffic and spam bots with a single click. When any site on our network flags a threat, all other sites get protected too. It’s like having a bouncer for your website. If an IP is on the blocklist (updated every 12 hours), they’re not getting in! The most important part is, you’ll be in complete control. User-friendly setup: Defender Pro gives you AntiBot on every site you connect, regardless of where they’re hosted. Just flip the switch and it’ll start working so efficiently you won’t even notice it’s there. Choose your security level: Basic Mode offers balanced, everyday protection, while Strict Mode offers tighter security that blocks even the slightest suspicious activity. Manage IPs in The Hub: Manually block specific IPs, apply blocklists and allowlists across all sites, implement Geo IP blocking and configure everything from one central dashboard. Want to see AntiBot in action? You can click here to get a real-time look at the malicious IPs and suspicious requests it’s detected and blocked in the last 24 hours. Firewall Security & IP Management: Take control over your site’s traffic Defender’s advanced Web Application Firewall (WAF) makes it easy to lock out hackers, scrapers, and malicious bots without touching a single line of code. Advanced IP Lockouts: Manually block specific IPs, import custom blocklists, or set automated timed and permanent lockouts for repeat offenders. Geo IP Blocking: Instantly ban traffic from specific countries or geographic locations with a single click. User Agent Banning: Instantly block spam and scrapers using built-in bad bot presets. We automatically allowlist major search engines to protect your SEO. Malicious Bot Detector: Deploy layered defenses to trap aggressive bots that ignore your robots.txt rules and catch fake crawlers impersonating legitimate search engines. Login Security & 2FA: Prevent unauthorized access Make sure the only users logging into your WordPress site are the ones you actually want. Defender can protect your sites from unauthorized access or brute force attacks with sophisticated login security features. These features keep your site safe from malicious logins, while still ensuring legitimate users can log in easily. Hide Login URL: Change the location of WordPress’s default login area, making it harder for automated bots to find and more convenient for your users. Session Security: Protect your site from session hijacking, preventing attackers from stealing session tokens to impersonate users and gain unauthorized access to your website. Smart Password Rules: Enforce strong passwords for new registrations, automatically block compromised credentials using a public “pwned” passwords database, limit login attempts so hackers can’t guess passwords, and force a site-wide password reset upon the next login if you suspect a security breach. Two-Factor Authentication (2FA): Add an extra layer of protection and security to your WordPress sites to prevent brute force attacks and login security vulnerabilities. Defender’s two-factor authentication (2FA) features include plenty of ways to verify logins, from mobile app verification (Google Authenticator, Authy) to Biometric Authentication (fingerprint/facial recognition) to Hardware Key Authentication (USB security keys.) Plus, built-in backup code generation, lost device emails and WooCommerce 2FA. Security Hardening: Apply recommended settings with a single click WordPress security hardening is all about adding multiple layers of protection to your website, to reduce your risk of attacks and unauthorized access. Defender makes it easy to do this, with 12 recommended hardening settings you can apply with one click. For example, Defender’s hardening settings include: Disabling the file editor to stop internal tampering Updating outdated security keys Hiding PHP error reporting on the frontend Adding advanced security headers (XSS protection, Strict Transport, etc.) Disabling trackbacks and pingbacks to prevent spam Automated Defenses: Protect your entire site, on autopilot You’ve got a lot to handle while running your business, wouldn’t it be nice if security was something you could set and forget? Learn more about Defender Pro. With Defender, you can put your security on autopilot. It’ll be working around the clock with hands-off, automated defenses that run seamlessly in the background to keep intruders out and your data safe. Here’s what Defender will be doing while you work on other things: Performing scheduled scans for issues: Set up regular scans that look for malicious code, suspicious code injections, vulnerabilities, abandoned plugins, and missing hardening recommendations. Creating automated security reports: Stay informed with health updates and immediate threat summaries delivered directly to your inbox. Keeping audit logs: Defender logs key site activity — logins, user changes, plugin and theme updates, content edits, and settings changes — so you can track what happened and when. Why choose Defender? There are plenty of WordPress security plugins out there, but many make it needlessly complicated to protect your site. Defender keeps the essentials simple. You can scan for malware, block harmful traffic, strengthen login security, and harden your site from one plugin, without digging through confusing technical options. It’s built specifically for WordPress, trusted across the WPMU DEV ecosystem, and designed to help you protect your site without slowing down your work. With Defender, you get: Security trusted by over 1 million WordPress users Protection built specifically for WordPress vulnerabilities Regular updates and threat intelligence improvements Malware scanning, firewall protection, and login security in one plugin Support from the award-winning WPMU DEV team So you get serious WordPress security, without the overwhelming setup. Built for speed and security A security plugin should protect your site without getting in the way. Defender is built to stop threats before they waste your server resources, with lightweight protection that runs quietly in the background. With Defender, you can: Detect and limit 404 bots before they drain server resources Run malware scans without overloading your CPU Keep your site protected without adding performance drag So you get the security your site needs, without making visitors wait for it. Works with your existing setup You shouldn’t have to change your plugins, tools or workflow just to secure your site. Defender works smoothly with your current WordPress setup. With Defender, you can: Protect WooCommerce, BuddyPress, and sites built with major page builders Apply saved security configs across multiple sites in a few clicks Enable and configure protection alongside your favorite plugins So you get the security your site needs, without getting in the way of the plugins, tools, and workflows you already rely on. Get started in minutes Defender works as soon as you activate it. Install the plugin, run your first malware scan, enable your firewall, strengthen login security, and apply recommended hardening settings in just a few clicks. Defender shows you what needs attention, so you can lock down your site without editing code or guessing which settings matter. Just install Defender, switch on the protections you need, and let it handle the rest. About Us WPMU DEV is a premium supplier of quality WordPress plugins and themes. For premium support with any WordPress-related issues you can join us here: https://wpmudev.com/ Don’t forget to stay up to date on everything WordPress from the Internet’s number one resource: WPMU DEV Blog Hey, one more thing… we hope you enjoy our free offerings as much as we’ve loved making them for you!
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Malcure Malware Shield
Is your website acting strangely? Seeing ‘Deceptive Site Ahead’ warnings, Japanese SEO hack, or random redirects? Time to fix and monitor your site with Malcure Malware Shield. Malcure Malware Shield scans for infections, runs silent scheduled scans, and sends alerts before threats spread — turning one-time cleanup into always-on protection. Malcure scans files, databases, and user accounts to find malware casual scanners miss — backdoors hidden in images, injections in your database, rogue, hidden admin accounts buried in your tables that don’t show up in the admin area. Then it watches your site with scheduled scans and alerts, so one-time cleanup becomes always-on protection. Detection runs against 50,000+ signatures with real-time threat intelligence — the same definitions for every user, free or paid. You see every infection with exact file paths and line numbers. Activate → Scan → Know → Monitor What Our Users Say Quotes are verbatim from WordPress.org support reviews, except for bracketed edits (for example, competitor names removed). Best by far, better than [competitor name removed] and other giants “You can see it is a bunch of geeks that created this, with skill and visual creativity at that. I spent hours trying to find a plugin like this. So many options and such bad results until now. Great job guys. You deserve it. Simple and effective. (Disclaimer to other potential readers: there are many types of hacks/malware out there, every scenario is different, but start with the Malcure scan and see how it goes. 9/10 you won’t be disappointed, my guess)” — @dalingzaf The ONLY plugin that scans every file-type… “I am a web developer and have tried many malware removal plugins, including popular ones [competitor names removed]. However, none of them detected some unusual files that were actually malware causing regular attacks. Some of these files were in JPG format.” — @devzeeshanx Best Malware Removal Plugin in just few minutes “Most security plugins that are free only scan the code, but Malcure Malware Removal Plugin scans the wordpress database and the code files in few minutes. Accurately shows which Database table row is infected and it helps resolve the hacking attempt instantly. Saves a lot of time for the developers. Thank You Team Malcure” — @s3630 It’s not just a “teaser” “This plugin really found the malware, and removed it. Really for free. Thanks guys, I’m going to donate now!” — @halucska What Malcure Does Detection Upload Scanner: Every file uploaded through WordPress (Media Library, REST API, plugins, sideloads) is scanned in real time. Infected files are blocked and deleted before they reach the filesystem. Note: this catches uploads that go through the WordPress upload API. Files written directly to disk by exploited themes/plugins or external scripts are caught by the next malware scan. File Scan: Core files, themes, plugins, images, uploads — backdoors, shells, obfuscated code, and malware hidden inside image files and archives. Database Scan: Finds malicious injections, recurring malware, and SEO injection links that other non-thorough scanners never see. User Scan: Detects rogue admin accounts and compromised metadata, including application passwords that bypass your login page. DeepScan™: Scans every file-type without skipping within resource-limits and hidden files where malware hides. Checksum Verification: Compares your core, plugin, and theme files against official repository checksums. Tampered files are flagged by severity. SEO Hack Detection: Catches Japanese Keyword Hack, Pharma Hack, and other SEO hacks in page titles and database records. Vulnerability Scanner: Checks installed plugins and themes against a real-time vulnerability database. Checksum Intelligence: Checksum-based verification reduces false alarms compared to heuristic-only scanners. 50,000+ Signatures: Detects known variants — C99, R57, RootShell, and many more — plus unknown threats via behavioral analysis. Monitoring & Alerts Scheduled Scans: Set a cadence — daily, weekly, or monthly. Runs silently in the background. Weekly Security Pulse Email: A verdict-first security-critical weekly summary — gives you a heads-up — “All Clear”, “Please Review”, or “Needs Immediate Attention” — delivered to your inbox. Covers scan results, failed logins, privileged activity, file edits, and updates. Scheduled Scan Results Email: Email report of scheduled scans — clean or infected. Know immediately when a scheduled scan finishes. Gives you early heads-up if malware found and before it spreads and affects SEO or gets the site blacklisted. Configurable Recipients: Choose who gets notified. Licensee, Registrant and additional CC recipients. Send a test Pulse to verify your mail configuration. Event Log: 100-day forensic record of every security event for root-cause analysis. Session Inspector: See who’s logged in — IP, user-agent, login time, and session expiration. Hardening & Firewall Block Path Traversal: Stops attackers from accessing sensitive system files. Block PHP Uploads: Prevents malicious scripts from being uploaded. Stop User Enumeration: Blocks bots from fishing for usernames. REST API Protection: Prevents user data leakage via the WP REST API. Attack Counter: See how many attacks the firewall has blocked, right on your dashboard. Incident Response Session Nuke: Force-logout every user instantly to kick out intruders. Salt Shuffler: One-click rotation of security keys (salts) to invalidate all browser cookies. Real-Time Threat Intelligence Zero-Day: Threat definitions served in real time via the Malcure Cloud. No days-long delay. Google Search Console: Connect directly to fetch security warnings and blacklist status. Privacy: Scans send file checksums and your site’s domain to Malcure servers. No sensitive user data is transmitted. Use of the API is subject to our Terms of Use and Privacy Policy. Lightweight: Runs only on demand or on schedule. No persistent background processes. No bloat. Dashboard & Experience Dashboard Widget: At-a-glance malware status, attack count, and quick-scan CTA on the WP dashboard. Admin Skins: Classic and Dark skins to match your workflow. Scan Completion Audio Preferences: Configure sound-notifications for scans. Diagnostics Page: Environment diagnostics for troubleshooting. Who This Plugin Is For Agencies and developers who need fast triage across multiple sites. WooCommerce, membership, and lead-gen sites where downtime and SEO damage are expensive. Site owners who want clear results — what was flagged, exactly where. How It Works (Scan → Review → Clean → Monitor) Scan — Open Malcure Scanner in your Admin Dashboard. Run a scan to check files, database, users, and more. Review — Every finding comes with an exact location: file path, line number, or database record. Decide what to repair, delete, or keep. Clean & Recover — Shows every infection so you can clean it yourself. Advanced Edition adds repair tools, file operations, whitelisting, and WP-CLI automation. Monitor — Set up scheduled scans. Get email alerts the moment a threat is found. Is It Free? We believe in 100% transparency. Free Forever: Professional-grade Detection (Knowledge). You see every infected file and database row (exact file path & line number), so you can clean it yourself for free. Free Forever: Real-time Threat Intelligence, Scheduled Scans, Weekly Security Pulse email, and Firewall & Hardening. Pro Upgrade: File Repairs, Deletions, Whitelisting, Advanced Scan Filters, WP-CLI Automation, Auto-Definition Updates, Bulk Client-Servicing Features & Premium Support (Expertise). You are never forced to pay to find a hack. Advanced Edition For when detection is not enough — you need to remediate. 1-Click Repairs: Repair infected files from the official source via Malcure Cloud. Delete Files: Remove infected or irreparable files directly. File & DB Whitelisting: Suppress alarms on specific files and database records. WP-CLI Integration: Full command-line control — async scans, definitions sync, checksum refresh, reporting. Automatic Definition Updates: Hourly cron keeps definitions current without manual intervention. Advanced Scan Filters: Include or exclude directories, custom regex signatures for database and files. File Inspector: Inspect files inline instead of having to go via s/ftp or ssh or file-managers. Copy Scan Results: Copy results to clipboard for client reporting. PHP Config & Diagnostics: View full PHP configuration in diagnostics. Factory Reset: One-click plugin reset. Premium Support: Direct access to our security analysts. Get Malcure Advanced Edition Expert Malware Removal Service In over your head? Our security analysts will clean your site for you — 100% removal guarantee, same-day service, blacklist removal, and 15-day post-cleanup cover. Book Expert Malware Removal Troubleshooting Some files are detected by Malcure Malware Shield as “suspicious”. What gives? Malcure’s DeepScan checks each file for malware. However some files aren’t pure malware but may contain code that is suspicious and could potentially do nasty things. You should carefully review and analyse them to see if they indeed do anything nasty. I can’t get Malcure Malware Shield to work. It hangs / doesn’t complete the scan / breaks for some reason. If you think that the plugin is broken, please report it here. Malcure Malware Shield (or for that matter other plugins) may break on malware affected / broken websites. Malcure Advanced Edition integrates with WP CLI and allows you to complete the scan from WP CLI even when the site is blocked by the webhost or when you are unable to login to the website. My site is infected however Malcure Malware Shield doesn’t detect the infection. Malware keeps evolving. If you come across malware that Malcure Malware Shield is not able to identify, you may please report it here. The scan gets stuck midway. What should I do? In case of such an event, please file a support request with us and we’ll be more than happy to troubleshoot the issue. Please visit this page. I cleaned my site but it got infected again. What should I do? Malware cleanup is a waste of time and effort unless you find the root cause behind the malware infection and monitor for recurrence. How was someone able to infect your website? Have you plugged in that security hole? Please read Why Do Websites Get Hacked. Google Safe Browsing site status (or some other scanner) still shows my site as infected. What should I do? First make sure you purge your site cache. Second, Google (and other scanners) cache the results for some time. You’ll need to force or refresh the scan. You can also file a request with us to get your site off any blacklists. I found a suspicious file, what now? If Malcure flags it, it’s likely malicious. You can inspect the file content using our built-in inspector. If you’re unsure, consider our Expert Malware Removal Service.