sequence by host.id with maxspan=1s
[process where host.os.type == "linux" and event.type == "start" and event.action in ("exec", "start") and (
(process.name == "tar" and process.args : "--checkpoint=*" and process.args : "--checkpoint-action=*") or
(process.name == "rsync" and process.args : "-e*") or
(process.name == "zip" and process.args == "--unzip-command")
) and not process.executable : "/tmp/newroot/*"
] by process.entity_id
[process where host.os.type == "linux" and event.type == "start" and event.action in ("exec", "start") and
process.parent.name : ("tar", "rsync", "zip") and
process.name : ("bash", "dash", "sh", "tcsh", "csh", "zsh", "ksh", "fish")
] by process.parent.entity_id
Install detection rules in Elastic Security
Detect Potential Shell via Wildcard Injection Detected 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).