Please check new websites and scan any downloaded files before you install new software. VirusTotal is a free service that analyzes suspicious files and URLs and facilitates the quick detection of viruses, worms, trojans, and all kinds of malware.
VirusTotal is a website, originally developed by Hispasec, that provides free checking of files for viruses. It uses 55 different antivirus products and 61 online scan engines to check for viruses that the user’s own antivirus solution may have missed, or to verify against any false positives. Files up to 128 MB can be uploaded to the website or sent via email ~ Wikipedia