Whats new in version 2.6.4.316:
- ClamAV engine updated 0.98.4
- ClamXav now supports going full screen on OS X 10.7+
- Fixed issue where ClamXav might incorrectly report a file being moved to quarantine
- Fixed issue where ClamXav would crash if the RunFreshclam tool was missing
- Fixed issue where clamdscan gets stuck in a loop using 100% CPU
- Improvements for OS X 10.10 Yosemite
- If you have edited freshclam.conf and clamd.conf by hand, you can find your old files inside /tmp.
Publisher review:ClamXav is a graphical interface for free antivirus ClamAV . However, you do not need to download it separately since it is included in the archive. The interface is basic but can run a scan on the directory of your choice and download updates to the database of the antivirus.
ClamXav is a virus scanner. The engine used is none other than ClamAV, a popular Open Source antivirus. Although Mac OS X is at present one spared by the virus system, it is essential to remain vigilant attachments, macros in Office documents or files downloaded with your browser.
ClamXav is localized in English, Danish, French, German, Japanese, Korean and Spanish.
Operating system:Mac OS X 10.6 or later
ClamXav 2.6.4.316 details 
