process where host.os.type == "linux" and event.action in ("exec", "exec_event", "start") and
((process.args == "tail" and process.args == "-c" and process.args == "funzip")) and
not process.args : "/var/log/messages" and
not process.parent.executable : ("/usr/bin/dracut", "/sbin/dracut", "/usr/bin/xargs") and
not (process.parent.name in ("sh", "sudo") and process.parent.command_line : "*nessus_su*")
Install detection rules in Elastic Security
Detect Suspicious Content Extracted or Decompressed via Funzip in the Elastic Security detection engine by installing this rule into your Elastic Stack.
To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).