Though , Ubuntu is virus free , you can use antivirus to clean your home and others also ;)

Its know as "clam" antivirus , find more about it on http://www.clamav.net/

Rather on Ubuntu apt:clamav

And run clamscan , output will be something like

----------- SCAN SUMMARY -----------

By default it scans the current directory , but you can :

(0) Scan a single file: clamscan file

(1) Scan a current working directory: clamscan

(2) Scan all files (and subdirectories) in /home : clamscan -r /home

(3) Load database from a file: clamscan -d /tmp/newclamdb -r /tmp