QtFprot is a frontend for FPROT 4.x, a free (for personal use) Linux virus-scanner.
These are the steps you have to do to use the program:
1. get f-prot @ http://www.f-prot.com/download/download_fplinux_personal.html
2. unpack qtfprot-0.2.1b.tar.bz2 - well you apparently already have...
3. compile, make and install (binary will be installed to /usr/local/kde/bin/)
4. start the binary: