Introducing Ðeny WP Pro: Clean It, Lock It, Keep It That Way

Anyone who has cleaned a hacked WordPress site knows the worst part: it can come back a week later. Today we are launching Ðeny WP Pro, a WordPress security plugin built to clean up a compromised site and keep it clean. This post explains why reinfection happens, what the plugin does about it, how it works, and what it costs.

Why hacked WordPress sites get reinfected

Most cleanups focus on the visible symptom: a spam redirect, an injected script, a defaced page. Remove the obvious files and the site looks fine. But attackers rarely leave a single foothold behind, and anything that survives the cleanup can rebuild the infection.

The data backs this up. In its 2023 Hacked Website and Malware Threat Report, Sucuri found that:

• WordPress accounted for 95.5% of the infections its team detected.
• 49.21% of compromised websites had at least one backdoor at the point of infection.
• 55.2% of WordPress sites with database malware had at least one malicious admin user.
• 2.14% of compromised websites had at least one malicious cron job (a scheduled task) that dropped malware, usually backdoors.
• 39.1% of content management system installs were outdated at the time of infection.

Each of those is a way back in. A backdoor lets the attacker re-upload whatever you deleted. A rogue administrator account lets them log in through the front door. A scheduled task quietly re-drops malware on a timer. None of them necessarily shows up in a scan that only looks for known-bad files.

What a persistent infection looks like

Sucuri's analysis of a PHP reinfector targeting WordPress sites (November 2024) shows how these pieces combine. The malware spread obfuscated copies of itself across all active plugins and a code-snippets plugin, used WordPress cron to pull in new third-party scripts every 24 hours, created a hidden administrator with a random hexadecimal username that did not appear in the admin panel, and planted a PHP backdoor inside a legitimate plugin's folder. As the researchers put it, if the site isn't fully cleaned, even small remnants of the malware can cause it to quickly reinfect everything.

The window for patching keeps shrinking

Getting the site clean is only half the job. Patchstack's State of WordPress Security in 2026 whitepaper (February 2026) counted 11,334 new vulnerabilities in the WordPress ecosystem during 2025, a 42% increase on the previous year. Plugins accounted for 91% of them, and 46% were not fixed in time for public disclosure. For heavily targeted vulnerabilities, Patchstack reports a median time to mass exploitation of 5 hours, and it found that traditional hosting defenses blocked only 26% of the attacks it tested.

Put together, the picture is clear: a site that is cleaned but not locked down, or locked down but not kept up to date, is likely to be compromised again. For more on how quickly attackers are moving, see our article on agentic AI and WordPress exploits.

What Ðeny WP Pro does: detect, fix, prevent

Ðeny WP Pro is an all-in-one WordPress security plugin. Its one-line summary is the title of this post: clean it, lock it, keep it that way. The features fall into three groups.

Detect

• Malware scanning. A signature and heuristic scan of PHP across wp-content and the web root that decodes hidden payloads and is aware of common false positives.
• Integrity check. Verifies WordPress core and every wordpress.org plugin against official checksums, so tampered files stand out.
• Database audit. Surfaces rogue admin users, injected options and posts, and orphaned cron hooks that file scans miss.
• Known-vulnerability lookup. Checks your WordPress, plugin and theme versions against the National Vulnerability Database (NVD) maintained by NIST, using its Common Vulnerabilities and Exposures (CVE) records.
• Live traffic monitor. A real-time log of who is hitting the site, including IP address, country, host or ISP, and whether the visitor is a human or a bot, kept in indexed storage with a configurable retention window.
• AI code review (optional). Sends flagged files to your own Anthropic API key for a malicious, suspicious or benign second opinion, to cut false positives.

Fix

• Repair tampered files. One-click reinstall of tampered plugin files, and per-file restore of modified core files from the official release.
• Backup and restore. Full database and file backups, chunked so they complete on large sites, with one-click restore before risky changes.
• Secure file manager. Browse, edit, upload and delete files and fix permissions. It is off by default and auto-expires to reduce exploit surface.

Prevent

• Auto-block firewall. Scores each request and blocks SQL injection, path traversal, cross-site scripting (XSS), bad-path scanning, fake search-engine bots, XML-RPC amplification, 404 floods and login brute-force attempts. A log-only trial mode lets you see what it would block first.
• One-click blocking. Block any IP address, IP range (CIDR block) or whole country directly from the traffic monitor.
• Install protection. Scans every plugin and theme package before it installs, from any source. Optional force-compliance blocks activating infected plugins.
• Read-only lockdown. Freezes all file changes using WordPress's DISALLOW_FILE_MODS setting, toggled from the admin toolbar. Unlocking opens a temporary window that re-locks automatically.
• Scheduled auto-updates. Stay locked, then once a day unlock, install core, plugin, theme and translation updates, and re-lock automatically.

Because much of the hostile traffic reaching WordPress is automated, the firewall and traffic monitor matter as much as the scanner. Our overview of 2026 bot threats to the marketing stack covers the wider bot picture.

How the WordPress security plugin works in three steps

1. Scan and verify. Scan PHP files for malware, check core and plugins against official checksums, audit the database for rogue admins and injected content, and look up installed versions against the NVD.
2. Clean and repair, with backups. Reinstall or restore tampered files one at a time, with a backup taken before every change, and review what the database audit surfaced.
3. Lock down and auto-update. Turn on the firewall, switch the site to read-only lockdown, and let the scheduled update window unlock, update and re-lock the site overnight.

The plugin is report-first. Nothing destructive runs unattended, every fix is backed up, and the most powerful tools, the file manager and lockdown, stay off until you turn them on.

What makes Ðeny WP Pro different

There are plenty of WordPress security plugins. These are the design choices we made specifically to close the reinfection loop described above:

• Enforcement in PHP and .htaccess. Blocks apply in PHP as well as in .htaccess, so they hold on nginx and managed hosts, not just Apache.
• Database audit alongside file scanning. Rogue admins, injected options and orphaned cron hooks are exactly the leftovers that bring infections back, so they are checked directly.
• An AI second opinion, on your terms. The optional AI review uses your own API key and exists to reduce false positives. Everything core works without it.
• NVD-backed vulnerability lookup. Known-vulnerable plugins and themes are flagged against the public CVE record before they are exploited.
• A locked-update window. You no longer have to choose between a frozen site and an up-to-date one. The site stays locked and still updates daily.
• A file manager that is off by default. Powerful tools are a liability when left on, so this one auto-expires.

Performance and compatibility

Scanning runs in the background in small chunks, and the firewall check per request is lightweight. Because blocks are enforced in PHP as well as .htaccess, protection holds on nginx, Apache and managed hosts.

Who Ðeny WP Pro is for

We built Ðeny WP Pro for two groups:

• Site owners who have been hacked before and want to make sure it does not happen again, or who run sites they cannot afford to have go down, such as e-commerce stores and lead-generation sites.
• Small agencies managing client WordPress sites, where one reinfected site means an unhappy client and hours of repeat cleanup.

A practical checklist after any WordPress compromise

Whether or not you use our plugin, work through these steps after a hack:

1. Take a full backup of files and database before changing anything.
2. Verify core and plugin files against official checksums and replace anything modified.
3. Review every administrator account and remove any you do not recognise.
4. Inspect scheduled tasks (WordPress cron) and remove hooks you cannot account for.
5. Search the database for injected options and posts, not just the file system.
6. Update WordPress, plugins and themes, and remove anything abandoned or unused.
7. Rotate passwords and keys, then put a firewall and file-change controls in place.

Pricing, licensing and updates

Ðeny WP Pro costs $99, which includes 24 months of updates.

• One license per website host. Each license is tied to one exact host.
• License key at checkout. Your license key is issued when you buy. Enter it in the plugin's settings to activate updates.
• How updates arrive. The plugin checks daily; updates appear on the Plugins screen, or install automatically during your scheduled update window.

Get started with Ðeny WP Pro

Reinfection is rarely bad luck. It is usually a backdoor, an admin account or a scheduled task that the first cleanup missed, followed by a vulnerability that went unpatched. Ðeny WP Pro is designed to find those leftovers, repair what was tampered with, and keep the site locked and updated afterwards.

See Ðeny WP Pro features and pricing to review the full feature list and buy a license for your site.