MetaDefender Core

Advanced Threat Prevention Platform

Cyberattacks become ever-more sophisticated. Cyberthreats are incessantly evolving and being built to evade traditional signature-based and behavior-based anti-malware defenses. Nowadays your IT and OT infrastructures need an advanced multi-layer threat prevention to beat zero-day attacks, advanced persistent threats (APT) and advanced malware.

MetaDefender Core enables you to integrate advanced malware prevention and detection capabilities into your existing IT solutions and infrastructure for better handling common attack vectors: securing web portals from malicious file upload attacks, augmenting cybersecurity products, and developing your own malware analysis systems.

Soundly Detect, Analyze and Eliminate Threats and Zero-day Attacks with Powerful Advanced Technologies


​Prevent File-borne Threats bypassing your defenses

Use MetaDefender Core to enhance the security of your application or solution by leveraging MetaDefender’s advanced threat detection and prevention. MetaDefender’s Deep Content Disarm and Reconstruction (Deep CDR) technology prevents unknown file-borne threats by sanitizing and reconstructing files ensuring that any possible embedded threats are neutralized while maintaining full usability with safe content.

​Maximize Threat Detection

MetaDefender’s multiscanning technology leverages 30+ anti-malware engines and significantly improves detection of known and unknown threats and provides the earliest protection against malware outbreaks. In addition, MetaDefender’s file-based vulnerability assessment technology can detect vulnerabilities in installers, binary files and Internet of Things (IoT) firmware before they are executed on endpoints.

Protect Personal Identifiable Information (PII)

MetaDefender proactive data loss prevention (Proactive DLP) can help companies prevent Personal Identifiable Information (PII) from leaving or entering the company’s systems by content-checking files before they are transferred. MetaDefender can search over 30 file types for sensitive content, including Microsoft Office, PDF, CSV, HTML and image files.

Low Total Cost of Ownership & Centralized Management

Utilizing MetaDefender Core helps you avoiding the cost and complexities that come with managing multiple security vendors. From a centralized console, you can perform global operations such as view managed anti-malware engines, manage virus definition and engine updates, and check licensing status.

Easy Deployment via REST API

Embed MetaDefender REST API calls directly into your application. The MetaDefender REST API interface is language-agnostic and accessible from virtually all web languages and websites. We provide sample code and detailed API documentation to help you bootstrap your integration. Use the MetaDefender Core in your own environment or use the MetaDefender Cloud API to harness OPSWAT’s fast cloud services.

High Performance

MetaDefender Core offers fast scanning without affecting performance and is scalable to any volume with MetaDefender's built-in high-performance architecture and load balancing feature.

MetaDefender Core Features

Deep Content Disarm and Reconstruction (Deep CDR)

Rebuild over 90 common file types, ensuring maximum usability with safe content. Hundreds of file reconstruction options are available.


Choose from over 30 leading anti-malware engines in flexible package options. Proactively detects 99%+ of malware threats by using signatures, heuristics and machine learning.

File-Based Vulnerability Assessment

Scan and analyze binaries and installers to detect known application vulnerabilities before they are executed on endpoint devices, including IoT devices.

Proactive Data Loss Prevention (Proactive DLP)

Content-check 30+ common file types for personally identifiable information (PII) and redact or add watermark to this sensitive data before they are transferred.

100+ File Conversion Options

Keep files usable and intact through true “reconstruction” of file types or flatten files to less complex formats.

Custom Workflows

Create your own workflow for multiscanning and Deep CDR and customize the order and process in which files are handled.

Archive Extraction

Multiscanning and Deep CDR for more than 30 types of compressed files. Archive handling options are configurable, and encrypted archives are supported.

File Type Verification

Verify over 4,500 file types to determine the actual file type based on the content of the file, not the unreliable extension to combat spoofed file attacks.

Use Cases

Protect Web Portals from Malicious File Uploads

MetaDefender prevents malicious file uploads on web applications that are bypassing sandboxes and other threat solutions and helps prevent data leakage with Proactive DLP.

Enhanced Threat Prevention for Security Products

Enhance your security solution using advanced threat prevention technology to stop both known and unknown threats.

Enhanced Anti-Malware Analysis Solutions

Enhance your security solution using advanced threat prevention technology to stop both known and unknown threats and to detect and block sensitive content in files.

How Upwork prevented 100% of zero-day file attacks with MetaDefender, compared to only 70% blocked by standard AV

Teza Mukkavilli, Head of Security of Upwork, shares the story.

More success stories >

Use cybersecurity that works

Schedule a meeting with our OPSWAT technical experts.