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Free Comodo Antivirus For Linux

Free Comodo Antivirus For Linux.

Comodo Antivirus for Linux (CAVL) offers the same comprehensive virus protection for Linux as their Windows software, but with an added benefit of a fully configurable anti-spam system for Linux users.

CAVL also uses cloud-based behavioral analysis for unknown files, to provide unrivaled protection against zero-day malware. The powerful AV engine is complemented by a highly configurable email gateway to filter spam and block email-borne threats.

In addition, it is very user-friendly and former Windows users who feel unsafe using command based AV-solutions can relax once it is installed.

However you should read the license agreement:

1.5. Updates. Comodo is not obligated to provide updates to the Products. If an update is provided and the update is not accompanied by an additional agreement, this agr
eement applies to your use and installation of the update. Some Products update automatically without notice.

How about that?

Note this: COMODO Antivirus and Mail Gateway for Linux - Debian 64-bit package:

  • COMODO Antivirus and Mail Gateway for Linux.
  • COMODO Antivirus provides real-time protection for file system. COMODO Mail Gateway brings inbound and outbound email security with real-time antivirus function.
  • After installation: Please run /opt/COMODO/ script manually to configure it. Please start COMODO from Menu or Desktop.
  • (Converted from a rpm package by alien version 8.86.)


  • Preventive Antivirus protection captures all known threats.
  • Automatic updates for current virus protection.
  • Includes scanner scheduler, detailed logbook and customizable scan profiles.
  • Postfilter is compatible with Postfix, qmail, Sendmail and Exim MTAs.
  • Install and forget about it. No annoying false alarm, a solid virus protection.

Operatingsystems support 32 - 64 bit:

  • CentOS 5.9, 6.2
  • Debian 6.0
  • Debian Jessie 8.xx (Working 100% ) Thanks to a private person fixing their script.
  • Debian Stretch 9 ( Works without on-access scan )
  • Debian Buster 10 ( Works without on-access scan )
  • Debian Bullseye 11 ( Works withou on-access scan )
  • Linux Mint 13, 17, 20.x ( Works without on-access scan )
  • Ubuntu 12.04
  • Red Hat Enterprise
  • Linux Server 5.9, 6.3
  • Fedora 17
  • OpenSUSE Linux 12.1
  • SUSE Linux Enterprise Server 11

Mail systems supported:

  • Sendmail 8.14.4
  • qmail 1.06
  • Postfix 2.5.x or higher
  • Exim 4.x
  • Amavis 2.6.4

The below solution also works for Linux Mint 17.1 (Tested) and probably later, but has not been tested.

Step by step installation:

First run this command to see which version of libssl you have installed:

sudo apt list libssl*

Then download openssl0.9.8 and install via a terminal window ( gDebi doesn't work ).

sudo dpkg -i libssl0.9.8_0.9.8o-7ubuntu3.1_amd64.deb

Press Enter.

Make sure you have openssl installed and libssl0.9.8, Comodo AV is dependent on it and will not work without it installed. Debian 8.7, for example, has libssl1.0.0 installed.

dpkg -l | grep -i openssl

You could install it with the ignore dependency command, like this:

sudo dpkg --ignore-depends=libssl0.9.8 -i cav-linux_x64.deb

Press Enter.

Next step:

Download Comodo Antivirus.

The file can be found in the Download folder if you have not selected another folder.

cd downloads

When openssl is installed, it is time to install Comodo Antivirus with the command:

sudo dpkg -i cav-linux_1.1.268025-1_amd64.deb

Press Enter.

The next step is to run located in / opt / COMODO / folder.

But first, we will make the file executable, either with chmod 755 or as below chmod + x.

cd /opt/COMODO

$ sudo chmod +x

[sudo] password for user: Enter your password

When done.

sudo sh ./


COMODO Antivirus for Linux 1.1

End User License Agreement

Please review the end user license agreement.

Press Enter to display it.You can not skip the license, so hold down the "Spacebar" until you get:

Do you agree with this license?[Y/n], Y och tryck Enter.

Receive the latest COMODO products news, updates and offers
COMODO will NOT share your information with any third parties.
Please input your email address(optional): @ ( NOTE! At least one character else does not work )

Next step is to select language:

1. Arabic, Saudi Arabia
2. Bulgarian, Bulgaria
3. Chinese, People's Republic of China
4. Chinese, Taiwan
5. Croatian, Croatia
6. Czech, Czech Republic
7. Dutch, Netherlands
8. English, United States
9. Estonian, Estonia
10. French, France
11. German, Germany
12. Greek, Greece
13. Hungarian, Hungary
14. Italian, Italy
15. Polish, Poland
16. Portuguese, Brazil
17. Russian, Russia
18. Serbian, Serbia and Montenegro
19. Slovak, Slovakia
20. Spanish, Spain
21. Swedish, Sweden
22. Turkish, Turkey
23. Ukrainian, Ukraine
Please select the language[number,default:8]: 21


You will find COMODO in all applications.

Start the program and update the virus definitions before running your first scan of your computer.

Possibly it shows that: The antivirus database has been updated - Never, but isf click on the "Never" link and it will change to today's date.

NOTE! It is highly likely that Realtime scanning does not work and that redirfs.ko and afflt.ko packages are missing, download available here.

To solve this problem, you must load and replace driver.tar in the / opt / COMODO folder.

Tested with Kernel 3.5, 3.6, 3.7, 3.8, 3.9, 3.10, 3.11, 3.12, 3.13, 3.14, 3.15, 3.16, 3.17, 3.18, 4.1, 4.2

The following solution requires that you first turn off Comodo Antivirus:

  • Right-click the red C icon at the time and date.
  • Left click on Close.
  • Yes button.

If you saved driver.tar in Downloads, open the Terminal window and type:

Restart the computer is not required, but recommended.

⇔ If now, courageously, this did not solve the problem altogether, following the instructions below: ⇔

You should edit the following at the beginning of the listed files:

Change #! / Bin / sh to #! / Bin / bash in /opt/COMODO/, /opt/COMODO/, /opt/COMODO/

sudo gedit /opt/COMODO/

Gedit text editor opens with Root rights and you can easily make the change and save the file.

Close Gedit text editor after each change and re-run command but change to:

sudo gedit /opt/COMODO/


sudo gedit /opt/COMODO/

How to uninstall using the commandline:

sudo apt-get --purge remove cav-linux

Press Enter.

Final note: Due to the fact that this software is badly maintained (in.example that a private person had to fix the redirfs.ko and afflt.ko packages ), I do not recommend it for use with newer Linux distributions.

Developers website