About us

Quttera | Heuristic Based Malware Detection Technology

Quttera is a cybersecurity software and services company that delivers a technology platform and solutions to help organizations monitor and protect their web assets from malware. We specialize on detection of web based security threats: exploits, trojans, worms, shell-codes and other kinds of malicious software.

Quttera provides Website Security Solutions for Small&Medium Businesses, Small&Medium Enterprises and Organizations. Quttera technology helps companies to quickly establish the efficient cybersecurity risk management to ensure hacking does not disrupt the business. Quttera scanning and malware detection capabilities have become a brand in the security industry. We help search engine providers and security vendors to improve the domain/URL safety scoring to make the internet a safer place.

The software, tools, scanning solutions and malware removal framework have been designed for ease of use without compromising functionality. We provide corporate-strength protection against constantly changing landscape of web malware, including viruses, trojans, spyware, phishing and hacking attacks. We develop and build a cutting age, non-signature based and heuristic technology to identify malicious web content. This patented technology is able to leverage Artificial Intelligence in order to detect anomalies, unknown and previously unseen malware.

We have been testing our algorithms for more than 12 years now, sharpening them and expanding the functional characteristics to detect unknown malware bits. Our online scanners are constantly crawling the Internet and process approx. 150k websites and millions of URLs monthly, generating security reports with detailed detection breakdown.

Quttera has become widely recognized as one of the global leaders in protecting website owners and all who are vulnerable to malicious hacker attacks. Our mission is to build a platform that is always up to date with the new threats and requires a minimum human involvement.

Case Studies


POC examples

Testing of Malware Detection (Vulnerability Exploit and Payload)  (from Quttera R&D BLOG)
Blog posts on Malicious Javascript detection (from Quttera R&D BLOG)
Blog posts on Malicious Ransomware detection (from Quttera R&D BLOG)
Blog posts on website hacking detection & cleanup (from Quttera R&D BLOG)


Annual Website Malware Report | 2016 (PDF, 723 KB)
Quttera investigation engine added value and user benefits (PDF, 413 KB)
May 2014 Top Ten Online Malware Report (PDF, 373 KB)


ThreatSign! Website Anti-Malware (YouTube video, 1:03)
How to scan a website/ URL with Quttera FREE online URL scanner (YouTube video, 1:40)

WWW as a major source of computer security risks

Today, when Internet became the primary channel of information and entertainment, propagation of malicious software is very simple and in general based on the exploitation of security vulnerabilities which are frequently discovered in modern web browsers and media viewers. According to Common Vulnerabilities and Exposures database, only in 2010 there were discovered 114 security vulnerabilities in Mozilla Firefox, 172 security vulnerabilities in Google Chrome, 49 vulnerabilities in Opera and 68 in Microsoft Internet Explorer (5,6,7,8).

Quttera supplies cloud services providing protection from web-based security threats and help to keep web-surfing devices away from viruses, trojans, worms and other kinds of malicious software.

Quttera's malicious content detection services utilize cutting edge heuristic detection technologies capable of detecting fully new, previously unknown security threats as well as already known threats which are spread as a part of legitimate web content included in websites. Our technology is based on years of research and systematic investigations of web-based security threats, and it provides very good(high rate) capabilities in the detection of JavaScript exploits, malicious PDF documents and media files that are downloaded and accessed by web browser implicitly during web surfing. Our services run on remote servers and do not require local installation.

Try our free Online Website Malware Scanner service and don't leave bad guys a chance.

More about information security

How can existing information security solutions adopt Quttera engine?

There is no doubt that a web-based malware is an emerging security threat for websites and web users. The dynamic content has increased the delivery of sophisticated web threats that evade detection by traditional security technologies. Hackers insensibly hack websites by exploiting security weaknesses of hosted web applications, gain access to the hacked Web site and install malware files that further spread to mobile devices and desktop stations.

To improve existing identification capabilities, we have developed a heuristic malicious content detection engine which is capable of recognizing and protecting from various kinds of web threats. Our malicious content detection engine comprises multiple non-signature based investigation and analytic methods capable of identifying JavaScript based attacks, security vulnerability exploits, JavaScript obfuscation techniques and JavaScript packers which are used to hide malicious content from signature/pattern based identification engines.

Quttera investigation engine embeds number of homemade execution emulators which penetrate the analyzed code and detects web treats regardless of targeted web browser or operating system.

Current engine version is capable of recognizing and identifying:

  • Security vulnerability exploits referencing system internals(x86 architecture)
  • Security vulnerability exploits referencing process internals(x86 architecture)
  • Sensible sequences of CPU instructions inside text and binary files(x86 architecture)
  • Hidden JavaScript code generated during emulation of the original script or web page
  • Suspicious JavaScript containing code obfuscation or injection of hidden JavaScript
  • Hidden HTML elements generated during emulation of the original script or web page
  • PDF files containing embedded malicious PE files
  • PDF files containing hidden suspicious actions
  • PDF files containing hidden suspicious elements
  • PDF files containing JavaScript code obfuscation
  • Malformed PDF files
  • Encrypted PDF files
Quttera is designed and implemented as a generic investigation engine, and it can be adopted and integrated into any information security software like::
  • Intrusion detection/prevention systems (IDS/IPS)
  • Antiviruses and malware detection tools
  • Malicious and suspicious web sites detection systems
  • Websites investigation systems
  • Security Internet suits
  • Application gateways
  • Mail servers
Quttera includes three main modules:
  • X86 emulator for emulation and detection of shellcodes and sensible malicious sequences of executable instructions
  • JavaScript emulator for emulation and detection of malicious JavaScript scripts and HTML pages
  • PDF reader emulator for detection of malicious PDF files.

Please contact us to verify how Quttera can reinforce your protection along with a solution you are, already, using.


I am extremely happy with your prompt and professional service. My client was on Google's blacklist for four months even though the malicious code on her small business site was removed immediately after the incident. We tried and tried to contact Google and were ignored. Your team responded promptly and had everything back up and running within a matter of days.

Sabra Vidali, www.textweaver.com

I just started using the service of Quttera and can say I am amazingly pleased with the results. I had 2 different websites that were thoroughly infected with malware. I tried testing for malware on other sites and none of them registered a problem. Only Google and Quttera could recognize the issue at hand. What happened next was an introduction to fair pricing along with excellent customer service team who cleaned my sites within a 24 hour period. Then they actually took it upon themselves to get one of the sites off Google's blacklist. I am up and running while at the same time being monitored to prevent future issues. Very cool.

Anthony Campagna, Jump On It, Inc.

Ghotit Dyslexia Software is engaged in development and sales of spelling and grammar correction software for children and adults with dyslexia. It's important for Ghotit that parents of the kids with dyslexia to enjoy a safe browsing of our site; this is particularly important since the web-site is used as a web-store to sell our dyslexia software.

"Zero-day protection" from malware is declared by many vendors whereas only Quttera is placing a real technology to deliver this promise. Since we are software people, we are understanding the revolutionary Quttera technology with examples at Quttera blog, and we are thankful for the daily scans and protection of our web-site.

Dr. Robert Iakobashvili, CTO Ghotit Dyslexia Ltd.

Found malware on my site, janeco.ca, downloaded the Quttera plugin which gave me a breakdown of affected pages. Simply asked for the team at Quttera to look into it, they then proceeded to remove ALL Malware within a few hours of initial notification! All I can say is a BIG THANK YOU!

Christian Koriati

Great job! You've solved the malware issue in a short time and saved my work and the work of so many people! A big thank you to Quttera and its support staff! Such a professionalism at a price which is affordable for everyone all over the web!

Chiara Marescalco

Contact us to add feedback or place testimonial.

Contact details

Quttera, Ltd
9 Hamenofim St., Ackerstein Towers (A)
P.O.B 2148
Herzliya Pituach
Israel 4672560

Level 26, 1 Bligh Street
Australia NSW 2000

P(US): +1 (323) 540-5642
P(IL): +972 (0) 337-413-04

Please contact us for additional information, feedback or suggestions.

For additional information:
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These days, maintaining an SSL certificate without letting it lapse is vital. The Quttera ThreatSign DNS WAF protects you against a broad range of threats and offers you free SSL management.


Using Quttera Web Malware Scanner Plugin to Clear WordPress Malware | Quttera

Blog: Using Quttera Web Malware Scanner Plugin to Clear WordPress Malware

The popularity of WordPress also makes it a target for attacks. Here’s how you can detect and clear WordPress malware with the Quttera Web Malware Scanner plugin.


Q1 2020 Quttera Web Application Firewall Statistics
 | Quttera

Blog: Q1 2020 Quttera Web Application Firewall Statistics

The Quttera Web Application Firewall guards your site against many kinds of cyberattacks, including ones that haven’t been seen yet. Here’s a look at Quttera’s Q1 2020 WAF statistics.


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