Hi,
I have the latest version installed, and my ClamAV has detected infected files.
The instalation is from : deb https://packages.graylog2.org/repo/debian/ stable 2.2
/usr/share/graylog-server/plugin/graylog-plugin-collector-2.2.3.jar: Js.File.MaliciousHeuristic-6260279-2 FOUND
/usr/share/graylog-server/plugin/graylog-plugin-enterprise-integration-2.2.3.jar: Js.File.MaliciousHeuristic-6260279-2 FOUND