Technology and tools
What is VirusTotal?
A Google-owned service that scans files, URLs, domains and IPs with dozens of security engines and shows the results and relationships.
VirusTotal checks files, URLs, domains and IP addresses against dozens of antivirus engines and URL scanners, and adds sandbox reports and relationships between items. Searching by hash shows whether a file is already known.
Uploads are shared with the security community and paying subscribers can download submitted files. Uploading a sensitive internal document or a targeted sample can therefore alert the attacker or leak data. Searching by hash is safe. Uploading needs thought.