"This tutorial shows how you can install and use AVG Antivirus
on an Ubuntu Feisty Fawn desktop. Although there aren't many Linux
viruses out there, this can be useful if you often exchange files
with Windows users--it can help you to not pass on any Windows
viruses (that don't do any harm to Linux systems) to Windows users.
AVG Antivirus for Linux is free for private and non-commercial