AbuseIPDB - AbuseIPDB is an IP address blacklist for webmasters and sysadmins to report IP addresses engaging in abusive behavior on their networks, or check the report history of any IP.

URLscan.io - urlscan.io is a free service to scan and analyse websites. When a URL is submitted to urlscan.io, an automated process will browse to the URL like a regular user and record the activity that this page navigation creates.

Metadefender - Metadefender, by OPSWAT, allows you to quickly multi-scan your files for malware using 43 antivirus...

Joe Sandbox - Automated Malware Analysis - Development and Licensing of Automated Malware Analysis Tools to Fight Malware

MalShare - MalShare is a public malware repository providing access to malware samples that have been reported by users.

VirusTotal - VirusTotal is a free service that analyzes suspicious files and URLs and facilitates the quick...