Free Malware Sample Sources for Researchers

Malware researchers frequently seek malware samples to analyze threat techniques and develop defenses. In addition to downloading samples from known malicious URLs, researchers can obtain malware samples from the following free sources:

Be careful not to infect yourself when accessing and experimenting with malicious software.

My other lists of online security resources outline Automated Malware Analysis Services and On-Line Tools for Malicious Website Lookups. Also, take a look at tips sharing malware samples with other researchers.

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About the Author

Lenny Zeltser develops products and programs that use security to achieve business results. He is the CISO at Axonius and Faculty Fellow at SANS Institute. Lenny has been leading efforts to establish resilient security practices and solve hard security problems for over two decades. A respected author and practitioner, he has been advancing tradecraft and contributing to the community. His insights build upon real-world experience, a Computer Science degree from the University of Pennsylvania, and an MBA degree from MIT Sloan.

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