malsub
A Python RESTful API framework for querying multiple online malware analysis and threat intelligence services.
What is malsub?
malsub is a Python RESTful API framework that consolidates access to multiple online malware analysis and threat intelligence services. It allows security analysts to programmatically submit files/URLs, retrieve analysis reports, download samples, and check quotas across services like VirusTotal and Hybrid Analysis through a unified command-line interface. The framework solves the problem of writing individual wrappers for each service by providing a modular, reusable architecture.
Incident responders, forensic analysts, malware researchers, and security practitioners who need to automate interactions with multiple threat intelligence platforms for investigations and analysis.
Developers choose malsub because it eliminates the need to write separate API clients for each service, offering a consistent, multi-threaded interface that saves time and reduces code duplication. Its modular design makes it easy to extend with new services, and its focus on automation streamlines threat intelligence workflows.
Overview
A Python RESTful API framework for online malware analysis and threat intelligence services.
Use Cases
Best For
- Automating malware sample submissions across multiple analysis platforms
- Retrieving consolidated threat reports for hashes, domains, or IPs from various services
- Security teams needing a CLI tool for batch processing of threat intelligence queries
- Incident responders who require quick access to multiple malware analysis APIs
- Researchers building custom pipelines for threat data aggregation
- Forensic analysts downloading malware samples from services like MalShare
Not Ideal For
- Real-time security monitoring systems requiring event-driven API callbacks or webhooks
- Teams needing a graphical user interface for collaborative threat analysis by non-technical staff
- Organizations with strict data privacy policies that prohibit using external cloud APIs for sensitive investigations
- Projects requiring deep integration with specific security orchestration platforms like SIEMs out-of-the-box
Pros & Cons
Pros
Wraps over 20 malware analysis services like VirusTotal and Hybrid Analysis into a single CLI, eliminating the need to write separate API clients for each service.
Dispatches API calls across thread pools per input argument, enabling efficient parallel submission or retrieval for multiple files, hashes, or URLs.
New services can be added by subclassing a provided base template, making it easy to extend and reuse code without rewriting wrappers from scratch.
Includes a pause interval between requests to handle API cooldown periods, helping avoid quota issues when processing large batches.
Cons
Some bundled services have restricted operations due to reliance on free API keys, which may not support all features available with paid subscriptions.
Requires users to manually register for API keys and configure them in a YAML file, adding complexity compared to tools with built-in key management.
The README notes documentation as future work, so advanced usage and module development may lack guidance, increasing the learning curve.
Frequently Asked Questions
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