VirusTotal, company based in Spain with only a handful of employees, performs the free service by pooling data from scores of "antivirus engines, website scanners, file and URL analysis tools," according to its site.
The quality and power of our malware research tools will keep improving, most likely faster; and Google's infrastructure will ensure that our tools are always ready, right when you need them.
"Our goal is simple: to help keep you safe on the web," VirusTotal said in the post today. "And we've worked hard to ensure that the services we offer continually improve. But as a small, resource-constrained company, that can sometimes be challenging. So we're delighted that Google, a long-time partner, has acquired VirusTotal."
Users can upload small files for checking, or just input a URL, to see if it's on a blacklist, and VirusTotal shares its results with other security vendors to allow them to beef up their defenses.
Neither Google nor VirusTotal have revealed any further plans about how this might affect Google services, but it is possible that VirusTotal's solutions could be integrated throughout Google Apps to protect users against malicious files shared through Gmail and other programs.