"ClamAV is a free and open-source antivirus software and a cross-platform antivirus toolkit. Its primary purpose is to detect various kinds of malicious software, i.e. viruses, worms, trojans, rootkits, and many other forms of possible threats to your system."
As ClamAV only offers a command line interface to its features, I elected to make a pretty UI to give less technical end users an easy way to manage this antivirus backend.