Install BitDefender for Ubuntu

Reference: http://download.bitdefender.com/repos/

1. Add the BitDefender repository key to the list of apt trusted keys:

   wget http://download.bitdefender.com/repos/deb/bd.key.asc
   apt-key add bd.key.asc

   NOTE that the second command must be run as root or by using sudo
2. Add the following line to the /etc/apt/sources.list file:
   

   deb http://download.bitdefender.com/repos/deb/ bitdefender non-free

3. Refresh your apt cache by running:
   

   apt-get update

   or
   

   aptitude update

4. Install the desired BitDefender packages using your prefered apt front-end
   For example:
   

   apt-get install bitdefender-scanner

5. To update
   

   bdscan --update

6. To scan
   

   bdscan filename