When I do it by my thought, I get the error message that it tell me the dependence package "libssl0.9.8" loss.
In Lubuntu 16.04, the libssl1.0.0 package is installed, not include libssl0.9.8.
Maybe we can install Libssl0.9.8 on 16.04 but does not replace the older one as well, I think. That is both package can be existed on the same operating system. Then I will browse directly the package repository by using Ubuntu Package Search
To do the search package, we have to firstly set the related condition as "libssl0.9.8" keyword、Search on packages names only、"any" distribution、"any" region and so on.
To click the right architecture as "amd64" and begin to download the libssl0.9.8 package
and install it by using GDebi tool.
Once the above process finish and no any error message, we will install the Comodo package again by executing the sudo dpkg -i cav-linux_x64.deb command or GDebi mode and the result is normal now.
To execute the Comodo Antivirus program, we will see a "Filesystem filter driver is not loaded!" issue error.
How to fix this problem? To download driver.tar(redirfs 0.11E12A) from "redirfs,avflt,dazuko" WebSite (# 2) next to replace the original file.
In the moment, I will update the antivirus pattern next to fix it.
To go to folder where you downloaded the driver next to replace the /opt/COMODO/driver.tar by using the sudo mv driver.tar /opt/COMODO/driver.tar command
Please follow the interactive mode as be careful at end of licence you NEED to accept with Y and then you can add email address, and choose Language 8 and so on.
Once the process finish and no any error, we have to restart the computer next to execute the initial scanning files/folders.
So does that the Comoda Antivirus is running on Lubutu 16.04 x64 normally.
Reference:
(# 1) Comodo source for Linux