How to Check Website for Malware and Protect Your Site

Website malware is one of the biggest threats for website owners, bloggers, businesses, and WordPress users. A malware-infected website can redirect visitors to spam pages, steal user data, display unwanted pop-ups, damage SEO rankings, and even get the domain blacklisted by Google.

That is why it is very important to regularly check website for malware using trusted tools and manual security checks.

Malware can be hidden inside website files, database tables, plugins, themes, JavaScript files, ads, or even .htaccess files. Sometimes the website may look normal to the admin, but visitors or search engines may see harmful redirects or spam pages.

Important Points to Remember

Before checking your website for malware, keep these important points in mind:

• Malware can hide inside website files, database, plugins, themes, and scripts.
• WordPress websites are commonly targeted because of outdated plugins and weak passwords.
• Google may show warnings if your website contains malware or phishing content.
• Hosting providers may suspend your account if malware is detected.
• Online scanners can detect many threats, but manual checking is also important.
• Removing visible malware is not enough; hidden backdoors must also be removed.
• Regular backups, updates, and strong passwords help prevent future infections.

Common Signs Your Website Has Malware

Your website may be infected with malware if you notice any of the following issues:

• Website redirects to unknown spam, adult, casino, or phishing pages.
• Google shows a warning like “This site may harm your computer.”
• Your hosting account gets suspended due to malware or abuse.
• Unknown admin users appear in your WordPress dashboard.
• New unknown files appear inside your hosting file manager.
• Website becomes slow or shows unwanted pop-ups.
• Search results show Japanese, pharma, casino, or spam pages.
• Emails from your domain start going to the spam folder.
• Visitors complain that antivirus software blocks your website.
• Your .htaccess, index.php, or wp-config.php file contains strange code.

Best Tools and Websites to Check Website for Malware

Here is a useful table of important tools and websites you can use to scan a website for malware.

Tool / Website	Purpose	Best For	Free / Paid
Google Safe Browsing	Checks whether a website is marked unsafe by Google	Finding blacklist and security warning status	Free
Google Search Console	Shows security issues detected by Google for your website	Website owners who have verified their domain	Free
Sucuri SiteCheck	Scans website for malware, blacklist status, injected spam, and outdated software	Quick external malware scan	Free
VirusTotal URL Scanner	Scans URLs using multiple antivirus and security engines	Checking suspicious links and infected pages	Free
Quttera Web Malware Scanner	Detects suspicious files, malicious scripts, and hidden threats	Website malware scanning	Free / Paid
SiteGuarding Scanner	Checks malware, blacklisting, and security risks	Basic website security checking	Free / Paid
Wordfence Security	WordPress malware scanner and firewall plugin	WordPress website protection	Free / Paid
MalCare	WordPress malware scanner and one-click malware removal	WordPress malware cleanup	Free / Paid
Sucuri Security Plugin	WordPress monitoring, hardening, and malware alerts	WordPress security monitoring	Free / Paid
cPanel Virus Scanner	Scans hosting files for infected scripts and malware	Websites hosted on cPanel servers	Depends on hosting
ImunifyAV / Imunify360	Server-side malware scanner used by many hosting providers	Hosting-level malware detection	Free / Paid
ClamAV	Open-source antivirus scanner for servers	Linux server malware scanning	Free

How to Check Website for Malware Using Online Tools

The easiest way to start is by using online malware scanners. These tools scan your website from outside and check whether your domain has visible malware, spam links, redirects, or blacklist warnings.

Steps to scan your website online:

• Open a trusted malware scanner such as Sucuri SiteCheck, Google Safe Browsing, or VirusTotal.
• Enter your website URL.
• Run the scan.
• Check if the scanner reports malware, blacklist status, injected spam, or suspicious redirects.
• Scan both homepage and important internal pages.
• If malware is found, note the infected URLs or files.

Online scanners are useful, but they may not detect deeply hidden backdoors inside your hosting account. That is why manual checking is also important.

How to Manually Check Website Files for Malware

If you have access to cPanel, FTP, or SSH, you should inspect important website files and folders.

Check these important locations:

• public_html
• wp-content/uploads
• wp-content/plugins
• wp-content/themes
• wp-includes
• .htaccess
• index.php
• wp-config.php

Look for suspicious PHP functions such as:

eval(
base64_decode(
gzinflate(
shell_exec(
assert(
preg_replace(

These functions are not always malicious, but hackers often use them to hide malware code.

Important File Checking Tips

When checking your website files, look for:

• Unknown PHP files inside the uploads folder.
• Recently modified files you did not edit.
• Strange code at the top or bottom of PHP files.
• Hidden files with random names.
• Multiple fake index.php files.
• Suspicious redirects inside .htaccess.
• Unknown JavaScript code added to theme files.
• Files with long encoded strings.
• Backdoor files that look like normal system files.

If you have SSH access, you can list recently modified files using this command:

find public_html -type f -mtime -7

This command shows files modified in the last 7 days. It is helpful if the website was recently hacked.

How to Check WordPress Website for Malware

WordPress is one of the most targeted CMS platforms, mainly because many users install outdated plugins, nulled themes, or weak passwords.

To check WordPress for malware, follow these steps:

• Scan your website using Wordfence, Sucuri, or MalCare.
• Update WordPress core to the latest version.
• Update all plugins and themes.
• Delete unused plugins and themes.
• Remove unknown admin users.
• Check the wp-content/uploads folder for PHP files.
• Compare WordPress core files with a fresh WordPress copy.
• Check .htaccess for suspicious redirects.
• Check wp-config.php for unknown code.
• Search the database for spam links and injected scripts.
• Review all recently modified files.

What to Do If Malware Is Found

If your website has malware, do not panic. Follow a proper cleanup process.

Malware cleanup steps:

• Take a full backup of the infected website before cleaning.
• Put the website in maintenance mode if needed.
• Change cPanel, FTP, database, WordPress, and admin passwords.
• Remove unknown admin users.
• Delete infected files.
• Replace WordPress core files with fresh copies.
• Reinstall clean versions of plugins and themes.
• Remove nulled or cracked themes/plugins.
• Clean suspicious database entries.
• Check and clean .htaccess.
• Scan the website again after cleanup.
• Request a review from Google Search Console if your site was blacklisted.

How to Prevent Website Malware

Prevention is better than cleanup. After cleaning your website, secure it properly to avoid future attacks.

Important website security tips:

• Use strong passwords for all accounts.
• Enable two-factor authentication.
• Keep WordPress, plugins, and themes updated.
• Never use nulled themes or cracked plugins.
• Use a trusted hosting provider.
• Take regular backups.
• Install an SSL certificate.
• Limit admin login attempts.
• Use a firewall or security plugin.
• Remove unused files, plugins, and themes.
• Monitor file changes regularly.
• Scan your website at least once a week.

Final Thoughts

Learning how to check website for malware is very important for every website owner. Malware can damage your SEO, redirect visitors, steal sensitive data, and get your domain blacklisted by Google.

Start by using free tools like Google Safe Browsing, Google Search Console, Sucuri SiteCheck, and VirusTotal. Then manually check your website files, database, plugins, themes, and .htaccess file for hidden malware.

For WordPress websites, always keep plugins, themes, and core files updated. Avoid nulled scripts, use strong passwords, enable two-factor authentication, and take regular backups.

A clean and secure website protects your visitors, improves trust, and helps maintain better search engine rankings.