The system must update the virus scan program every seven days or more frequently.

Virus scanning software can be used to protect a system from penetration from computer viruses and to limit their spread through intermediate systems. The virus scanning software should be configured to check for software and virus definition updates with a frequency no longer than seven days. If a manual process is required to update the virus scan software or definitions, it must be documented with the Information System Security Officer (ISSO).

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Verify the system is using a virus scan program and the virus definition file is less than seven days old. Check for the presence of "McAfee VirusScan Enterprise for Linux" with the following command: # systemctl status nails nails - service for McAfee VirusScan Enterprise for Linux > Loaded: loaded /opt/NAI/package/McAfeeVSEForLinux/McAfeeVSEForLinux-2.0.2.; enabled) > Active: active (running) since Mon 2015-09-27 04:11:22 UTC;21 min ago If the "nails" service is not active, check for the presence of "clamav" on the system with the following command: # systemctl status clamav-daemon.socket systemctl status clamav-daemon.socket clamav-daemon.socket - Socket for Clam AntiVirus userspace daemon Loaded: loaded (/lib/systemd/system/clamav-daemon.socket; enabled) Active: active (running) since Mon 2015-01-12 09:32:59 UTC; 7min ago If "McAfee VirusScan Enterprise for Linux" is active on the system, check the dates of the virus definition files with the following command: # ls -al /opt/NAI/LinuxShield/engine/dat/*.dat If the virus definition files have dates older than seven days from the current date, this is a finding. If "clamav" is active on the system, check the dates of the virus database with the following commands: # grep -I databasedirectory /etc/clamav.conf DatabaseDirectory /var/lib/clamav # ls -al /var/lib/clamav/*.cvd -rwxr-xr-x 1 root root 149156 Mar 5 2011 daily.cvd If the database file has a date older than seven days from the current date, this is a finding.

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SV-86839r2_rule The system must update the virus scan program every seven days or more frequently.

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