Sold by: OPSWAT
Deployed on AWS
Stop malicious content from infiltrating your Amazon S3 bucket by conducting real-time, on-demand, or scheduled inspections for vulnerabilities, zero-day threats, and sensitive data in files stored in the cloud.
4.5
Overview
Video
Event-Based S3 Integration Demo
Video
Polling-Based S3 Integration Demo
Video
Product video
Note: This is a BYOL listing for MetaDefender Storage Security. To inquire about a Private Offer, please contact us at apn-sales@opswat.com .
MetaDefender Storage Security is a powerful tool that adds a scalable file-security layer to AWS S3 Buckets. It scans user-uploaded files for malware, detects suspicious files, removes potentially malicious content, and automatically redacts or reports sensitive data. It integrates easily with cloud and on-premises storage services and provides IT security professionals with automated audit reports for quick remediation.
Before newly uploaded files enter a protected S3 bucket, real-time scanning triggers an S3 event to scan the file. During the scan, files are inspected and analyzed for vulnerabilities, zero-day threats, and compliance violations. Additionally, you can schedule weekly or monthly on-demand file scans using the polling process.
Highlights
- Flexible file scanning: Real-time scanning instantly scans files prior to being uploaded to S3 buckets. Scans can also be scheduled or run on-demand.
- Detect malware: Leverage Multiscanning with 30+ anti-malware engines to detect nearly 100% of known malware threats.
- Prevent zero-day attacks: Disarm active embedded threats and reconstruct a sanitized version of files to prevent zero-day threats and advanced evasive malware using Deep Context Disarm and Reconstruction (Deep CDR).
Details
Sold by
Delivery method
Delivery option
64-bit (x86) Amazon Machine Image (AMI)
Latest version
Operating system
AmazonLinux 2023
Deployed on AWS
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Features and programs
Financing for AWS Marketplace purchases
AWS Marketplace now accepts line of credit payments through the PNC Vendor Finance program. This program is available to select AWS customers in the US, excluding NV, NC, ND, TN, & VT.
Pricing
Pricing and entitlements for this product are managed through an external billing relationship between you and the vendor. You activate the product by supplying a license purchased outside of AWS Marketplace, while AWS provides the infrastructure required to launch the product. AWS Subscriptions have no end date and may be canceled any time. However, the cancellation won't affect the status of the external license.
Additional AWS infrastructure costs may apply. Use the AWS Pricing Calculator to estimate your infrastructure costs.
Vendor refund policy
We do not currently support refunds, but you can cancel at any time.
Legal
Vendor terms and conditions
Upon subscribing to this product, you must acknowledge and agree to the terms and conditions outlined in the vendor's End User License Agreement (EULA) .
Content disclaimer
Vendors are responsible for their product descriptions and other product content. AWS does not warrant that vendors' product descriptions or other product content are accurate, complete, reliable, current, or error-free.
Delivery details
64-bit (x86) Amazon Machine Image (AMI)
Amazon Machine Image (AMI)
An AMI is a virtual image that provides the information required to launch an instance. Amazon EC2 (Elastic Compute Cloud) instances are virtual servers on which you can run your applications and workloads, offering varying combinations of CPU, memory, storage, and networking resources. You can launch as many instances from as many different AMIs as you need.
Version release notes
Additional details
Usage instructions
Format this to html
- Launch the product via 1-Click.
- Use a web browser to access the application at http://<EC2_Instance_IP>/ or https://<EC2_Instance_IP>/
- Register and login with new user account
- Follow the onboarding steps 4.1 Select new configuration 4.2 Provide MetaDefender License to activate the instance (Pre-requisite to contact sales to get the license) 4.3 Add MetaDefender Core instance to process the files (Pre-requisite to install it to connect to it) 4.4 Configure the storage integration
More detailed information about the onboarding can be found at https://www.opswat.com/docs/mdss/operating/onboarding For setup instructions and detailed documentation, visit the MetaDefender Storage Security User Guide - https://www.opswat.com/docs/mdss/operating
Resources
Vendor resources
Support
Vendor support
NOTE: Pricing displayed in the Pricing Section above is for illustration purposes only and varies depending on customer environment, requirements and other factors. Please contact us at apn-sales@opswat.com for more details.
To obtain the software and related modules, please sign in or create an account at https://my.opswat.com . A license key will be provided by your OPSWAT Sales representative. Minimum system requirements and installation instructions are available here: https://docs.opswat.com/mdss/installation/user-guide . Operation of the product is covered here: https://docs.opswat.com/mdss/operating . Advanced installation instructions for Kubernetes environments are available here:
AWS infrastructure support
AWS Support is a one-on-one, fast-response support channel that is staffed 24x7x365 with experienced and technical support engineers. The service helps customers of all sizes and technical abilities to successfully utilize the products and features provided by Amazon Web Services.
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Customer reviews
Brody T.
Consistent Background Scanning with Easy to Understand Results
Reviewed on Jan 16, 2026
Review provided by G2
What do you like best about the product?
File scanning runs consistently in the background and we have not seen noticeable slowdowns in applications or file services. The scan results are easy for non security teams to understand, which helps reduce escalations to IT. Integration was also straightforward, allowing us to add file inspection into existing systems without introducing new tools for staff to manage.
What do you dislike about the product?
The main effort is during rollout. Policies need careful adjustment so business files are not blocked unnecessarily. Once tuned, ongoing maintenance is minimal.
What problems is the product solving and how is that benefiting you?
It reduces operational risk caused by infected or suspicious files entering the environment. This leads to fewer disruptions, fewer support tickets, and a more stable IT environment overall.
Nicolas M.
Fast, Clear Scanning with File Sanitization That Keeps Workflows Moving
Reviewed on Jan 15, 2026
Review provided by G2
What do you like best about the product?
MetaDefender protects against file based threats without forcing changes to existing security architecture. Scanning is fast and consistent, and the results are clear enough to automate actions. The option to sanitize files instead of blocking them helps maintain normal business workflows.
What do you dislike about the product?
Policy tuning requires attention, especially when dealing with archives or mixed file types. Early testing is important to prevent overly strict rules from interrupting normal traffic.
What problems is the product solving and how is that benefiting you?
It reduces exposure to file based threats coming from external users, vendors, and integrations. This lowers incident frequency, improves confidence in inbound content, and strengthens overall security posture without adding operational friction.
Parker S.
MetaDefender Simplifies Consistent, Scalable File Scanning Across Platforms
Reviewed on Jan 14, 2026
Review provided by G2
What do you like best about the product?
MetaDefender makes it easier to enforce consistent file scanning across shared platforms. It scales well as usage grows and avoids each application having to build its own file security logic. Policies are flexible enough to support different risk levels while keeping a common security baseline.
What do you dislike about the product?
Some upfront planning and tuning are needed to align policies with multiple application teams.
What problems is the product solving and how is that benefiting you?
It centralizes file security at the platform layer. This reduces exposure from third party content and helps maintain consistent protection as new services are added.
Emily B.
Effortless, Reliable File Scanning for Hassle Free Administration
Reviewed on Jan 13, 2026
Review provided by G2
What do you like best about the product?
It scans files reliably without putting noticeable strain on servers or interrupting user access. Monitoring is straightforward, and day to day operation does not require constant attention, which is important from a systems administration point of view.
What do you dislike about the product?
Initial setup and policy tuning take time, especially when defining how strict scanning should be for different file types.
What problems is the product solving and how is that benefiting you?
It prevents malicious files from entering servers and shared locations. This reduces remediation work and helps keep systems running smoothly with fewer incidents.
Daisy H.
Seamless Integration and Robust Protection for Real World Pipelines
Reviewed on Jan 09, 2026
Review provided by G2
What do you like best about the product?
MetaDefender fits well into real application pipelines and does not require heavy redesign. File scanning is fast and reliable, even under load, and the API is easy to automate. The combination of multi-engine detection and file sanitization gives strong protection without forcing users to change how they work. Logs and results are clear enough to connect with SIEM and monitoring tools.
What do you dislike about the product?
Policy tuning takes some effort at the start, especially for archives and uncommon file types. Careful testing is needed to avoid blocking safe files.
What problems is the product solving and how is that benefiting you?
It protects file upload and sharing points from hidden threats. This lowers incident risk and reduces manual security reviews while keeping systems available and responsive.