event.category:file and event.type:(change or creation) and
file.name:("authorized_keys" or "authorized_keys2" or "/etc/ssh/sshd_config" or "/root/.ssh") and
not process.executable:
(/Library/Developer/CommandLineTools/usr/bin/git or
/usr/local/Cellar/maven/*/libexec/bin/mvn or
/Library/Java/JavaVirtualMachines/jdk*.jdk/Contents/Home/bin/java or
/usr/bin/vim or
/usr/local/Cellar/coreutils/*/bin/gcat or
/usr/bin/bsdtar or
/usr/bin/nautilus or
/usr/bin/scp or
/usr/bin/touch or
/var/lib/docker/* or
/usr/bin/google_guest_agent or
/opt/jc/bin/jumpcloud-agent or
/opt/puppetlabs/puppet/bin/puppet or
/usr/bin/chef-client
)
Install detection rules in Elastic Security
Detect SSH Authorized Keys File Modification 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).