Serte installing an antivirus will keep you protected against most threats, but no product offers a 100% detection guarantee.
Upload a suspicious file to VirusTotal and within seconds you’ll see the scan results of 56 major antivirus software, along with an in-depth scan of the file you suspect.
One problem with this multi-antivirus is that you will regularly see false positive alerts, where most engines say the file is safe, but a few mark it as unsafe. If it’s a small number of engines reporting that there are alerts (between five or less), and the most trusted engines say it’s safe, you could run the file anyway, but sometimes that increases your risk of infection. preferably wait a day or two and try scanning the affected file again if you have any doubts.
VirusTotal is the king of online virus scanners, but there are competitors around, and Metascan Online is one of the best.
The basic idea is the same. upload a file to Metascan online, and it will be scanned by a multitude of antiviruses, with their verdicts listed in a detailed report.
MetaScan online uses fewer engines than VirusTotal – 43 versus 56 – but that’s not necessarily a bad thing. Removing some antivirus products that are weak should mean fewer false alerts, and we’ve also found that the scan results are generated much faster.
MetaScan Online can also scan files slightly larger than VirusTotal (140MB vs. 128MB), and has a neat scan history page to show how a file’s detection rate has changed over time. Overall, VirusTotal is still our favorite online, but MetaScan online has too many positives. Give it a try and see how the site works for you.