What is VirusTotal? How to Check Suspicious Links and Files as a Regular User

VirusTotal is Suitable for Initial Assessment

VirusTotal can query whether suspicious files, URLs, domains, or file hashes have been flagged by security vendors. It is suitable for gathering clues before clicking links or executing files, but it is not a guarantee of safety.

What is Suitable to Check

Unknown links, suspicious download files, APKs, compressed files, email attachments, or known file hashes can all be checked. If multiple engines flag something as malicious, you should stop opening, logging in, installing, or forwarding.

Don't Just Look at Red or Green Results

A low number of detections may be false positives; a complete lack of detections does not mean safety, especially for newly emerged scam websites or customized malicious files. When judging, consider the file's source, URL domain, what the other party is asking you to do, and whether you were expecting to receive this file.

Do Not Upload Sensitive Files Directly

Contracts, identity documents, company data, private photos, customer data, or unpublished code should not be uploaded to public analysis services recklessly. Such content should be handled by trustworthy internal security processes, company IT, or professionals.

Processes Regular Users Can Adopt

First, check if the source is reasonable; if unsure, check the URL or file hash; if results are suspicious, do not open it; if you have already executed it, keep track of the file's source, the time received, and any system anomalies, then scan your device with trusted security tools.

VirustTotal is most useful right before you click, log in, or install, helping to shift your risk assessment from 'just a feeling' to 'having more clues to judge'.