Here is McAfee VirusScan for mac (also known as Virex). This is an enterprise version that never expires and requires no serial or activation. Enjoy!



Benefits:

      * Enforces security policies
      VirusScan for Mac offers continuous policy enforcement for multiple files,             directories, or volumes, including volumes on remote computers connected through the network
    * Get broad protection
      VirusScan for Mac protects your Macintosh systems against all types of viruses and other threats, including emerging malware
    * Scan when you want to and need to
      Because VirusScan for Mac uses the Mac OS X interface, you can initiate on-demand scanning using file drag and drop
    * Scanning is reliable and accurate
      False positives can be a problem with some anti-virus software, but with VirusScan for Mac, they are few and far between
    * Stay up-to-date
      With a single keystroke, you can keep VirusScan for Mac fully up to date for maximum protection
    * It's easy to manage
      Using McAfee ePolicy Orchestrator, you can control, manage, and report using a single-console display

Features:

    * On-access scanning
      VirusScan for Mac scans files as they are accessed to determine if they are infected with malware
    * Proven anti-virus technology
      VirusScan for Mac for Macintosh stops every type of virus and malicious code threat, even compressed files; using advanced heuristics and generic detection, VirusScan for Mac protects against new viruses and other threats
    * Easy Macintosh-like interface
      VirusScan for Mac uses Apple's Mac OS X Aqua user interface, so you have an instantly familiar Macintosh screen; and with DropScan, you have easy on-demand scanning
    * One-click updating
      Keeping your Macintosh systems up to date is as easy as a mouse click; the rapid update system automatically grabs the latest virus updates to ensure full compliance and protection against viruses, worms, and other malicious code threats