WordPress plugin intelligence profile

Quttera ThreatSign – Web Malware Scanner for WordPress

WordPress multi-level security scanner detecting malware, 0-day threats, brute-force attacks, bot attacks, and unauthorized admin changes.

WP PlugIndex snapshot

Current directory snapshot

Tested up to WordPress 7.1
Current version4.1.0.50
WordPress coverageTested up to WordPress 7.1
Minimum stackWP 3.3.2 · PHP 7.2
Directory statusactive
Last directory update1 Nov 202621h ago
Active installations10K+Adoption metric — not a quality score
WordPress.org rating3.9 / 5 from 47 ratings
Official packageDirect from WordPress.org

Repository metrics are context, not quality scores. Active installations measure adoption and can strongly reflect a plugin’s age and historical popularity. Ratings, recent updates and “Tested up to” metadata also do not guarantee modern code, error-free operation, security, feature completeness or suitability for a particular site. Why active installs don’t tell the whole story →

WP PlugIndex currently records Quttera ThreatSign – Web Malware Scanner for WordPress version 4.1.0.50 as active, updated 21h ago and tested up to WordPress 7.1.

Overview

About this plugin

Quttera ThreatSign protects your WordPress website with multi-layered security:

Malware Detection: Powered by Quttera’s AI-driven heuristic engine, the scanner detects malicious PHP, obfuscated JavaScript, hidden iframes, redirects, spam, SEO malware, and credit-card skimmers targeting checkout pages. The plugin performs on-demand scans directly from your WordPress admin and checks your domain against more than 40 global security authorities, including Google, McAfee, Norton, and Yandex.

Detection capabilities are continuously enhanced using insights from Quttera’s worldwide threat intelligence network.

Brute Force Protection: Prevents unauthorized login attempts with IP locking, configurable rate limiting, and environment-aware protection policies. Supports both shared hosting (aggressive locking) and dedicated servers (progressive delays). Includes emergency bypass mechanism for critical situations.

). Protects REST API, XML-RPC, and WooCommerce endpoints with endpoint-specific risk scoring.

Admin User Monitoring: Real-time detection and alerting for unauthorized admin additions, removals, and role changes with database audit trail and snapshots.

For complete protection—including automated malware removal, scheduled scanning, WAF, and 24/7 monitoring—you can upgrade to a ThreatSign Website Security plan.

Malware Detection Features:

  • One-click on-demand scans from WP admin
  • 0-day (unknown threat) detection via heuristic & behavioral analysis
  • Detection of malicious PHP (backdoors, shells, injections)
  • Detection of obfuscated or polymorphic JavaScript
  • Identification of malicious iframes, redirects & hidden links
  • Detection of spam & SEO malware
  • Checkout skimmer detection
  • Inspection of WordPress core file integrity
  • Detection of alien or unauthorized files in core directories
  • External links and outbound reference analysis
  • Blacklist checks across 40+ security authorities
  • Cloud-based scanning to reduce server resource load
  • Detailed investigation reports with severity levels

Brute Force Protection Features:

  • IP-based locking with configurable thresholds
  • Multi-stage failure detection with soft and hard locks
  • Environment-aware policies for shared hosting and dedicated servers
  • IP whitelist/blacklist with CIDR notation support
  • Emergency bypass mechanism via constant or filter
  • User account lockout alerts via email
  • Combo-lock (IP + username) detection
  • Rate limiting with progressive delays

Bot Protection Features:

  • Multi-stage risk evaluation with heuristic analysis
  • Token-bucket rate limiting across multiple lanes (global, REST, XML-RPC, checkout, cart)
  • Legitimate bot recognition (Googlebot, Bingbot with elevated rate limits)
  • REST API enumeration and authentication protection
  • WooCommerce endpoint protection (checkout & cart)
  • Configurable operation modes (Observe, Balanced, Aggressive)
  • Risk-based challenge mechanisms and exponential backoff

Admin User Monitoring Features:

  • Real-time detection of admin user additions and removals
  • Admin role change tracking
  • Database snapshot comparison for audit trail
  • WP-Cron scheduled checks (1-minute intervals)
  • Immediate detection via WordPress hooks
  • Email alerts for unauthorized changes
  • Comprehensive alarm system integration

com or sign up for any

of our ThreatSign annual plans, which include cleanup & blacklist removal:

com/anti-malware-website-monitoring-signup

Credits

  • Quttera

Plugin’s other home

  • WordPress Malware Scanner
WordPress.org metadata

Plugin tags

Topics listed for this plugin in the WordPress.org directory.

  • bot protection
  • brute force protection
  • malware removal
  • malware scanner
  • wordpress security
Compatibility & maintenance

Compatibility & maintenance

Tested with WP 7.1

Marked as tested with the current WordPress 7.1 release.

Current WordPress releaseWordPress 7.1
WordPress.org Tested up to7.1
Minimum requirementsWordPress 3.3.2 · PHP 7.2
Update activity1 Nov 202621h ago

“Tested up to” is directory metadata supplied by the plugin author. WP PlugIndex does not turn an older declaration into a claim that the plugin is incompatible.

Changes recorded by WP PlugIndex

Recent tracked changes

Version4.1.0.494.1.0.50
Version4.1.0.474.1.0.49
WordPress compatibility7.1.37.1.4
Version4.1.0.464.1.0.47
Version4.1.0.454.1.0.46
Version4.1.0.444.1.0.45
Version4.1.0.434.1.0.44
Version4.1.0.424.1.0.43
WordPress compatibility7.1.27.1.3
Version4.1.0.414.1.0.42
Tracking & source

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