Unable to start Plesk Premium Antivirus ( Dr.Web ) on Plesk server

Symptoms

• Unable to start Plesk Premium Antivirus

  • From Plesk UI: Tools & Settings > Services Management > Plesk Premium Antivirus:

    PLESK_ERROR: Unable to manage service by drwebmng: ('start', 'drweb'). Error: /usr/local/psa/admin/bin/drwebmng[17360]: Unable to start drweb antivirus daemon

  • From the command-line interface:

    # service drwebd start
    Key file: /opt/drweb/drweb32.key - Key file was not found! (No such file or directory)
    A path to a valid license key file was not specified.

• The following error appears during enabling Plesk Premium Antivirus on a mailbox:

  PLESK_ERROR: Error: drwebmng failed: /usr/local/psa/admin/bin/drwebmng[20358]: Unable to update drweb antivirus service state: not all changes might be applied drwebmng: Some errors occurred in handlers actions System error 2: No such file or directory

Cause

drweb package is corrupted or installed from the 3rd-party repository.

Resolution

1. Connect to the server via SSH.

   Note: if direct SSH access to the server is not possible, contact server administrator for further assistance.

2. Remove Plesk Premium Antivirus:

   # plesk installer --select-release-current --remove-component drweb

3. Remove corresponding directories:

   # rm -rf /var/drweb/ /etc/drweb/

4. Check if 3rd-party repository is being used:

   • On RHEL-like (RHEL/CentOS/AlmaLinux/CloudLinux/Rocky Linux):

     # yum repolist | grep -i drweb
     drweb DrWeb - stable 72

   • On Ubuntu/Debian:

     # apt policy | grep drweb
     500 http://repo.drweb.com/drweb/debian 11.1/non-free amd64 Packages
     release o=drweb,a=stable,n=11.1,l=drweb 11.1,c=non-free,b=amd64
     origin repo.drweb.com

   If any repositories are found, disable them.

   1. Find the repository file:

      • On RHEL-like (RHEL/CentOS/AlmaLinux/CloudLinux/Rocky Linux):

        # find /etc/yum.repos.d/ -name *drweb*
        /etc/yum.repos.d/drweb-yum-x86_64.repo

      • On Ubuntu/Debian:

        # find /etc/apt/sources.list.d/ -name *drweb*
        /etc/apt/sources.list.d/drweb.list

   2. Move the repository file to some another directory to disable it:

      • On RHEL-like (RHEL/CentOS/AlmaLinux/CloudLinux/Rocky Linux):

        # mv /etc/yum.repos.d/drweb-yum-x86_64.repo /root/drweb-yum-x86_64.repo.bak

      • On Ubuntu/Debian:

        # mv /etc/apt/sources.list.d/drweb.list /root/drweb.list.back

      Note: the repositories names and files names may differ.

   3. Run yum update or apt update command to refresh the packages lists.

5. Re-install Plesk Premium Antivirus:

   • via Plesk UI:

     In Plesk> Tools & Settings > Updates and Upgrades > Add and Remove Product Components > Mail hosting > Plesk Premium Antivirus:
     

   • via command-line interface:

     # plesk installer --select-release-current --install-component drweb

6. Run the Plesk Premium Antivirus service:

   • via Plesk UI:

     Tools & Settings > Services Management > Plesk Premium Antivirus:
     

   • via command-line interface:

     # service drwebd start