Malware

All the malware you can wish for to reverse engineer.

Distribution Centers

Organization	Description	Directory
Any.Run	Interactive online malware analysis service for dynamic and static research of most types of threats using any environments.
Contagio Malware Dump	Password Required. A collection of the latest malware samples, threats, observations, and analyses.
Cape Sandbox	A malware sandbox derived from Cuckoo and is designed to automate the process of malware analysis with the goal of extracting payloads and configuration from malware.
Das Malwerk	The daily zip-file aims to serve you a batch of malware ranging from annoying adware to bank trojans and beyond!
Hatching Triage	A malware sandboxing solution. It leverages a unique architecture, developed with scaling in mind from the start!
Hybrid Analysis	A free malware analysis service for the community. Using this service you can submit files for in-depth static and dynamic analysis.
InQuest	A free malware analysis service for the community. Using this service you can submit files for in-depth static and dynamic analysis.
KernelMode.Info	A forum for reverse engineerin, OS internals and malware analysis.
Malshare	A free Malware repository providing researchers access to samples, malicious feeds, and Yara results.
Malware Bazaar	Project operated by abuse.ch. A project to collect and share malware samples.
Malware Samples	An ongoing and updated archive of files collected which are associated with specific public malicious threat reports
Malware-DB (theZoo)	theZoo is a project created to make the possibility of malware analysis open and available to the public.
Objective-See	Mac malware samples collected by the Objective-See team
Packet Total	Simple, free, high-qualityh PCAP file analysis
PhishingKitTracker	An extensible and freshly updated collection of phishingkits for forensics and future analysis topped with simple stats
Polyswarm	Threat Intelligence Marketplace
SNDBOX	Malware sandbox platform
SoReL-20M	Sophos-ReversingLabs 20 Million dataset. HUGE dataset.
URLhaus	Project operated by abuse.ch. A project to collect and share malware samples.
VirusBay	A web-based, collaboration platform that connects security operations center (SOC) professionals with relevant malware researchers.
VirusShare	Because Sharing is Caring
VirusSign	A huge collection of high quality malware samples
Virus Samples	Over 150,000+ malicious files, viruses, malware, trojans, executables, scripts, and other forms of malware payloads across a variety of file types and architectures
VX-Underground	Over 150,000+ malicious files, viruses, malware, trojans, executables, scripts, and other forms of malware payloads across a variety of file types and architectures.
Yori	Free sandbox-based file analysis service.

Ransomware/Malware/Worms/etc.

Tool	Description	Directory
Coldfire	Golang malware development library.
GonnaCry	A linux ransomware that encrypts all the user files with a strong encryption scheme.
Neurax	A framework for constructing self-spreading binaries.

Scanners

Organization	Description	Directory
Hybrid Analysis	A free malware analysis service for the community that detects and analyzes unknown threats using a unique Hybrid Analysis technology.
ID Ransomware	Upload a ransom note and/or sample encrypted file to identify the ransomware that has encrypted your data.	N/A
Jotti	Free service that lets you scan suspicious files with several anti-virus programs.
Kaspersky Threat Portal	Сheck any suspicious threat indicator, whether it is a file, file hash, IP address or web address.
Opswat	Simply submit suspicious files to MetaDefender Cloud for analysis.
VirusTotal	Analyze suspicious files and URLs to detect types of malware, automatically share them with the security community.
VTSCAN	VirusTotal API script.