How can I install bitdefender antivirus?
It is possible to install BitDefender antivirus via the terminal. You need to first add the repository by doing
sudo apt-add-repository "deb http://download.bitdefender.com/repos/deb/ bitdefender non-free"
Next, get and add the repository key
wget https://download.bitdefender.com/repos/deb/bd.key.asc
sudo apt-key add bd.key.asc
Then
sudo apt-get update
Finally install by doing
sudo apt-get install bitdefender-scanner-gui
Once BitDefender is installed you can launch it with the following command:
/opt/BitDefender-scanner/bin/bdgui
Troubleshooting
If BitDefender fails or crashes when trying to update virus signatures, you can try the following steps taken from here. One additional caveat to this answer is that you may need to wait at least 1 hour from your last attempt to update using the GUI. The application warns about not checking for updates again within that time frame.
sudo touch /opt/BitDefender-scanner/var/lib/scan/bdcore.so.linux-x86_64
sudo ln -fs /opt/BitDefender-scanner/var/lib/scan/bdcore.so.linux-x86_64 /opt/BitDefender-scanner/var/lib/scan/bdcore.so
sudo bdscan --update
Now it may show 0 signatures. However, after your first scan, it will display the correct number of signatures.