stopvirus

WP Antivirus Site Protection is the security plugin to prevent/detect and remove malicious viruses and suspicious codes. 
It detects: backdoors, rootkits, trojan horses, worms, fraudtools, adware, spyware, hidden links, redirection and etc. 
WP Antivirus Site Protection scans not only theme files, it scans and analyzes all the files of your WordPress website (theme files, all the files of the plugins, files in upload folder and etc).
<blockquote>
This plugin will be especially useful for everybody who downloads WP themes and plugins from torrents and websites with free stuff instead of purchase the original copies from the developers. You will be shocked, how many free gifts they have inside 🙂
</blockquote>
Main features:
<ul>
<li>Deep scan of every file on your website.</li>
<li>Daily update of the virus database.</li>
<li>Heuristic Logic feature.</li>
<li>Quarantine & Malware removal feature</li>
<li>Alerts and Notifications in admin area and by email.</li>
<li>Daily cron feature.</li>
<li>Scanner can detect a wide list of malware types.</li>
<li>Whitelist solution after manual review.</li>
<li>Possibility to upload suspicious files for review by experts.</li>
<li>View Security reports online</li>
<li>Bruteforce protection</li>
</ul>
<blockquote>
Protect your website before the problems come. Monitor your website and minimize incident time with our automated scans.
</blockquote>
WP Antivirus Site Protection plugin is a great solution for all website owners. It was developed by our engineers who has a many years experience in website security. Our plugin intelligently crawl your website and identify all possible infections and backdoors on your website. Every day we update database and add new logics and functions (Heuristic Logic feature) to keep your website safe.
Here is the list of malware types what our scanner can detect:
<ul>
<li>MySQL and JavaScript injections (There is a lot of different attacks on your website but the most popular type and the easiest is probably MySQL injection. Our scanner will help you detect all possible issues with JavaScript and MySQL)</li>
<li>Website Defacements (When hackers break in to your website they can change the appearance of your website or a webpage. We have set up a feature that can help you prevent any changes on your website)</li>
<li>Hidden iFrames (If hacker gets an access to your website Ftp they usually set up a hidden iFrame. That way they can use your website to get the viruses on your visitors computers)</li>
<li>PHP Mailers (Sometimes hackers use your website to send a SPAM emails from your web server. Our smart scanning module was made to detect all possible PHP mailing scripts on your website and prevent your website from sending SPAM)</li>
<li>Social Engineering Attacks (There are a lot of social engineering methods to get an access to your website. Our scanning software will help you to protect your website)</li>
<li>Phishing Page Detection (Hackers can install a phishing page on your website without you knowing it. Sometimes they can use your website)</li>
<li>Redirects</li>
<li>Website Backdoors (Allow to get full control on website and server)</li>
<li>Website Anomalies</li>
<li>Drive-by-Downloads</li>
<li>Cross Site Scripting (XSS)</li>
<li>.htaccess (Hack Detection)</li>
<li>Rootkits and variants of this type of malware</li>
<li>Trojan horses</li>
<li>Internet worms</li>
<li>Fraudtools</li>
<li>Adware and spyware scrips 
and much more…</li>
</ul>
WordPress security Scanner
The malware scanner checks all the files of your website.
<ul>
<li>Basic scanning using more than 1000 signatures.</li>
<li>Advanced scanning.</li>
<li>Scan schedules – daily, monthly, and custom.</li>
<li>Automatic update malware signatures in real time through a threat protection channel.</li>
<li>Recover modified files by overwriting them with the original version.</li>
<li>Delete unknown and unwanted files.</li>
<li>Checks the content security by scanning the contents of files, messages and comments for dangerous URLs and suspicious content.</li>
</ul>
WordPress Firewall
Our web application firewall (WAF) detects and blocks malicious traffic to your WordPress website.
<ul>
<li>Protection brute force attacks by restricting login attempts.</li>
<li>Advanced firewall rules and malware signatures</li>
<li>Real-time IP Block List blocks all requests from malicious IP addresses, protecting your site and reducing load.</li>
<li>Advanced malware scanner blocks requests containing malicious code or content.</li>
<li>Block intruders by IP address or create advanced rules based on a range of IP addresses, hostname, user agent, and referrer.</li>
</ul>
How it works:
1) Registration. To communicate with API server, your website has to get session access key. 
Plugins sends information about your website (domain and email) to server. After successful 
registration your website will get uniq access key. Please note: This action requires your permission 
and confirmation (nothing will be sent to server without your permission).
2) Scan process. During the scanning process, plugin will read all the files of your website and will analyze 
them. Information about the files with suspicious codes will be sent to server for extra analyze 
and for report generation. Generated report will be sent back to you (the copy of the report you will get by 
email)
Please note: Plugin sends and receives the data to API server.

Antivirus Solution

Adds more security for your website. Server-side scanning. Performs deep website scans of all the files. Virus/Malware detection and removal.

Themeisle

Creativemotion

Titan includes anti-spam, firewall, malware scanner, site accessibility checking, security and threats audits for WordPress websites. Our security functions provide Titan with the latest firewall rules, malware signatures, and database of malicious IP addresses – all you need to ensure the security of your website.
Titan is a comprehensive WordPress security solution, completed by a set of additional features as add-ons, which was placed into a simple and intuitive interface.
Why did we update Anti-Spam and what is Titan?
Let me tell you before we start: your favorite Anti-Spam had not disappeared! Instead of that it revived and became stronger to stand guard over the secure of your site! 
The latest update of Anti-Spam is called Titan Anti-spam & Security and represents the brand new version of a plugin.
Why TITAN?
We aim to create a plugin as reliable as this metal – and easy-to-use at the same time. The new name of our plugin sets the pace with newest and highest standards of quality.
What has been changed except the name? 
Whilst the process of modernization we had to take some complicated decisions. One of them was: 
What should we do: keep Anti-Spam like a simple plugin with the only one function or complicate it with a huge complex of tools made for the security of your site? 
Constant feedback from users and versatile development experience lets us claim that the situation when there is too many tools couldn’t exist! 
We considered all possibilities thoroughly to secure the best future for the plugin. 
Let me introduce new secure functionality that was developed with spending a lot of time, effort and consideration:
<h3>Features</h3>
<h3>ANTI-SPAM</h3>
ANTI-SPAM CHECKS YOUR COMMENTS THROUGH OUR GLOBAL SPAM DATABASE, THEN A SELF-LEARNING NEURAL NETWORK RE-CHECKS UNFILTERED COMMENTS, TO PREVENT YOUR SITE FROM PUBLISHING MALICIOUS CONTENT.
<ul>
<li>No captcha.</li>
<li>We have created algorithms to ensure reliability and accuracy against spam bots. It will save your time and resources, allowing you to focus on developing and improving your website and business. Antispam provides logs of all the processed requests that allows you to check the spam filters results. Regular analysis of parameters allows you to find new spam behavior patterns.</li>
<li>A comment posted by a user appears on the site right away. The background check marks spam comments as spam and hides them on a site. This helps to improve user experience and increase engagement.</li>
<li>[PRO] Checking the already existing comments and users for spam.</li>
<li>[PRO] We provide 24/7 technical support.</li>
<li>[PRO] To identify and block spam bots AntiSpamPro uses a series of tests running in the background, totally transparent to the website User. It allows 100% protection from spam bots No extra protection needed.</li>
<li>[PRO] Anti-spam is a comprehensive and transparent anti-spam protection. We provide detailed statistics of all logged comments and logins. You can always be sure that there are no errors.</li>
<li>[PRO] Protect Register Form.</li>
<li>[PRO] Advanced protection of comment forms.</li>
<li>We regularly release updates to the anti-spam module. Our modules always meet new versions of CMS and we are constantly expanding supported CMS.</li>
</ul>
<h3>WORDPRESS FIREWALL</h3>
The web application firewall detects and blocks malicious traffic. It protects your website at the endpoint by providing deep integration with WordPress. In contrast to cloud alternatives, it does not violate encryption, cannot be bypassed and does not contribute to data leakage.
<ul>
<li>Protection brute force attacks by restricting login attempts.</li>
<li>[PRO] Update real-time firewall rules and malware signatures through the threat protection channel.</li>
<li>[PRO] Real-time IP Block List blocks all requests from malicious IP addresses, protecting your site and reducing load.</li>
<li>[PRO] An integrated malware scanner blocks requests containing malicious code or content.</li>
<li>[PRO] Using the Attack Log you can track visits and hacking attempts that are not shown in other analytic packages in real time; including origin, IP address, current time, and time spent on your site.</li>
<li>[PRO] Block intruders by IP address or create advanced rules based on a range of IP addresses, hostname, user agent, and referrer.</li>
</ul>
<h3>WORDPRESS SECURITY SCANNER</h3>
<ul>
<li>The malware scanner checks the system files, themes and plugins for malware, invalid URLs, backdoors, SEO spam, malicious redirects and code injections.</li>
<li>Basic scanning using more than 1000 signatures.</li>
<li>[PRO] Advanced scanning with more than 6000 signatures.</li>
<li>[PRO] Configure three scan speeds to make sure the performance is not affected.</li>
<li>[PRO] Set scan schedules – daily, monthly, and manually.</li>
<li>[PRO] Update malware signatures in real time through a threat protection channel.</li>
<li>Compares your system, themes and plugins with those which are in the WordPress.org repository, checking their integrity and informing you of all changes.</li>
<li>Recover modified files by overwriting them with the original version.</li>
<li>Delete unknown and unwanted files easily via the Titan interface.</li>
<li>Checks your site for vulnerabilities and notifies in case of any problems or discrepancies. It also provides a notification of potential security issues when the plugin has been closed or inactivated.</li>
<li>Checks the content security by scanning the contents of files, messages and comments for dangerous URLs and suspicious content.</li>
</ul>
<h3>SITE CHECKER [PRO]</h3>
<ul>
<li>Check the availability of any URL</li>
<li>Push notifications in the browser to show URLs access issues in real time. 
Your browser will receive push notifications if one of the URLS is unavailable.</li>
</ul>
<h3>TWEAKS</h3>
<ul>
<li>Strong Password Requirement</li>
<li>Hide author login</li>
<li>Hide WordPress versions. WordPress itself and many plugins show their version at the visible areas of your site. An attacker who received this information may be aware of the vulnerabilities found in the version of the WordPress core or plugins.</li>
</ul>
<h3>Translations</h3>
<ul>
<li>English (default), always included</li>
<li>Korean — big thanks to @cansmile</li>
<li>Spanish (Venezuela) — big thanks to @yordansoares, @nobnob, @bragnieljimenez</li>
<li>Spanish (Spain) — big thanks to @garridinsi, @nobnob, @nobnob, @nilovelez, @fernandot</li>
<li>Italian — big thanks to @deadpool76</li>
<li>Persian — big thanks to @1farakav</li>
<li>Arabic — big thanks to @alzintani</li>
<li>Swedish — big thanks to @elbogen </li>
<li>Tibetan — big thanks to @bumpagyal </li>
<li>Albanian — big thanks to @besnik </li>
<li>Dutch — big thanks to @robelia </li>
</ul>
We are very need for your help with <a href="https://translate.wordpress.org/projects/wp-plugins/anti-spam/" rel="nofollow ugc">translating the 
Titan Anti-spam & Security plugin</a> into your native language. We want to make it international and understandable for everyone. Please contact us via email inside the plugin, or create a topic on our <a href="https://wordpress.org/support/plugin/anti-spam/" rel="ugc">support forum</a> if you can help with the translations. In exchange for your help, we will give you better support and our premium plugins absolutely free!

Titan Anti-spam & Security

Can't uninstall from the dashboard, requires sending data to 3rd party for the survey. Good that I have wp-cli or You can use FTP to uninstall.
NOT WORTH anymore.

Can't uninstall from dashboard, require send data to 3rd party

I liked anti-spam a lot as an anti-spam plugin... But sadly now it has too many things, and I don't like it. With the free option it doesn't offer a complete security system, there are a lot of firewall options that can't be used, so it is too much for only an anti-spam plugin and quite complicated. So I changed to another one, because I also don't want it to collide with the other security plugin I use.

Too much things for an anti-spam plugin too few (on free) for a security one

Anti-spam, Site Security Check & Malware Scanner.

Antivirus Solution vs Titan Anti-spam & Security