JayShield® · malware scanner

Find the malware hiding in your website.

When a site gets hacked, attackers leave webshells, backdoors and miners behind. JayShield finds them and seals them in a quarantine vault in seconds. It never deletes a file you did not approve.

v1.2.1MIT licensedzero dependenciesNode 18+54 testsmacOS · Windows · Linux

What it catches.

One engine, five classes of threat, tuned against real WordPress, Laravel and jQuery so it flags attacks and not your own code.

Webshells and backdoors

c99, r57 and WSO shells, eval-based droppers and remote code execution left behind after a breach.

signature + heuristic

Obfuscated payloads

Base64 chains, packed JavaScript and hidden iframes, code that works hard not to be seen.

entropy + pattern

Image polyglots

Executable PHP disguised inside PNG and JPG files, a favorite hiding spot in upload folders.

content inspection

Miners and skimmers

CoinHive-style cryptominers, session skimmers and card sniffers injected into front-end code.

signature + heuristic

Known malicious files

Ships with a hash list of known malware including EICAR, and you can extend it with your own.

sha-256 hash list

Two ways to run it.

The scanner is open source and free forever. Pro adds the automation, alerting and scale that teams need to keep sites clean without watching a terminal.

Open Source
$0forever
MIT · GitHub · npm

The full JayShield scanner and remover, for developers who live in the terminal.

Install free
  • Full scanner and remover engine
  • Every detection signature
  • Quarantine vault and byte-for-byte restore
  • JSON output and CI exit codes
  • Runs on any pipeline, zero dependencies
  • MIT license, audit every line
  • Community support
MOST POPULAR JayShield Pro
$79/ year
or $8/mo · lifetime $199

Everything in open source, running on a schedule, watching every site, alerting you the moment something changes.

JayShield Pro is in active development. Get notified
  • Everything in Open Source, plus
  • Scheduled and real-time monitoring
  • Instant signature updates
  • Email and Slack alerts
  • Multi-site dashboard
  • One-click auto-remediation
  • PDF audit reports
  • REST API access
  • Commercial license
  • Priority support

Compare in full.

FeatureOpen SourcePro
Webshell and backdoor detection
Quarantine and byte-for-byte restore
CLI, JSON output and exit codes
On-demand manual scans
Signature updateswith releasesinstant
Scheduled and real-time scans
Email and Slack alerts
Multi-site dashboard
One-click auto-remediation
PDF audit reports
REST API access
Commercial license
Supportcommunitypriority

Start scanning in one command.

No account, no install for a first look. Point it at a folder and read the report.

$ npx @jayhackpro/jayshield ./public_html
one-off scan, nothing installed
$ npm install -g @jayhackpro/jayshield
install globally
$ jayshield ./public_html --quarantine
scan and isolate threats in one pass

Questions.

Is the open-source version really free?

Yes. The full scanner and remover is MIT licensed, published on GitHub and npm, and free forever. There are no feature nags and nothing is held back to push you toward Pro. If the terminal tool is all you need, it is all you need.

What does Pro actually add?

Automation and scale. Pro runs JayShield on a schedule and in real time across every site you manage, pushes signature updates instantly, alerts you by email and Slack the moment something changes, and gives you a dashboard, one-click remediation, PDF reports, a REST API and a commercial license. It is built for people responsible for more than one site.

Does anything get sent back to JayHackPro?

The open-source scanner sends nothing, ever. It runs entirely on your machine. Pro syncs only the scan results you choose to connect to your dashboard, and never the contents of your files.

Can I try Pro and get a refund?

Pro is covered by a 14-day refund. If it is not right for you, email info@JayHackPro.com and the company will make it right.

Your site is worth an afternoon of certainty.

Run the free scan now. Upgrade when you want it watching for you.

Install free Pro coming soon