Scanning your website for malware

If you think your site is hacked or just want to confirm it isn't, multiple options for malware scanning are available — server-side automatic, on-demand, and via security plugins.

Server-side automatic scanning (us)

We run Imunify360 on every hosting server. It scans accounts on a schedule and flags suspicious files.

If we detect malware on your account:

• We email you with the file paths and the type of threat.
• The portal shows a security notice.
• For active threats (malware actively serving from your site), we may quarantine specific files immediately.

You don't have to do anything to enable this — it's running in the background.

On-demand scan via cPanel

For an immediate scan:

1. Open cPanel from your hosting service.
2. Look for Imunify360 tool or Imunify360 under Security.
3. Click Start scan.

Scanning takes a few minutes for typical accounts. Results show:

• Files detected as malware.
• Suspicious patterns (not necessarily malware but worth reviewing).
• Recommended actions (delete, clean, ignore).

For each detected file, options:

• Clean — Imunify360 attempts to remove the malicious code while keeping the file.
• Delete — remove the file entirely.
• Ignore — mark as a false positive (don't flag again).

Clean works for some types of infection (injected JavaScript, modified WordPress core files). For wholesale-malicious files (PHP backdoors, web shells), delete is the right action.

WordPress-specific scanning

If you're running WordPress, plugin-based scanners are more thorough for WordPress-specific threats:

Wordfence

• Free and paid tiers.
• Comprehensive scan: file integrity (compares your WordPress files to known-good versions), malware signatures, suspicious patterns, vulnerable plugins.
• Scheduled and on-demand.
• Results show specifically what's wrong and how to fix.

To install: wp-admin → Plugins → Add New → search "wordfence" → Install → Activate.

Run a full scan from wp-admin → Wordfence → Scan. Initial scan takes 5–30 minutes depending on site size.

Sucuri

• Subscription-based (no free tier comparable to Wordfence's).
• Off-site scanner — runs from Sucuri's infrastructure, looks at your site like an external visitor.
• Catches some things server-side scanners miss (cloaked malware that only shows to specific user agents).

MalCare

• Combination of WordPress plugin + cloud-based scanner.
• Auto-cleanup options.
• Less popular than Wordfence but specialized in clean-after-detection.

For most sites, Wordfence is the right choice. Free tier covers detection; paid adds real-time protection and faster updates.

Online malware scanners (free)

For a quick external check:

• Sucuri SiteCheck — sitecheck.sucuri.net — free, scans a public URL.
• Quttera — quttera.com — free, similar.
• VirusTotal — virustotal.com — multi-engine scan; flags if any of 70+ engines detect malware on a URL.

These are external scanners; they only see what your site serves publicly. Useful as a sanity check, not as comprehensive as server-side or WordPress-plugin scans.

What to do if malware is found

Once a scan flags something:

1. Don't panic — most infections are cleanable.
2. Take a snapshot before changes (preserves evidence).
3. Identify the entry point:
   • Outdated plugin/theme with known exploit (most common).
   • Weak admin password that was brute-forced.
   • Compromised FTP credentials that were used to upload malware.
4. Clean or delete the malware — using the scanner's tools.
5. Restore from a known-clean backup if cleanup is uncertain.
6. Update everything — WordPress core, all plugins, all themes.
7. Change all passwords — admin, FTP, hosting, database.
8. Audit users — make sure no unauthorized admin accounts were created.

For more detailed incident response, see What to do if my website is hacked.

Preventing future infections

Most infections come from:

• Outdated plugins or themes — patch promptly.
• Weak passwords — strong, unique, two-factor.
• Vulnerable themes from random sources — only install themes from reputable sources.
• Compromised FTP credentials — use strong passwords or SSH keys; restrict FTP IPs if possible.

The best malware scan is the one you don't need to run because the site stays clean.

Power-user note

For continuous monitoring of file changes (catching new infections as they happen), tools like:

• WordPress's Wordfence "Live Traffic" — shows requests in real time.
• Tripwire-like file integrity monitoring — alerts on any file change.
• fail2ban on a VPS — auto-bans IPs based on log patterns.

For high-stakes sites, multiple layers of protection (firewall + WAF + scanner + monitoring) is the right level. Most sites are fine with the default protection plus good update hygiene.