Persistence (TA0003)(external, opens in a new tab or window)
text code block:file where host.os.type == "linux" and event.action == "creation" and file.path : ( // system-wide configurations "/etc/profile", "/etc/profile.d/*", "/etc/bash.bashrc", "/etc/bash.bash_logout", "/etc/zsh/*", "/etc/csh.cshrc", "/etc/csh.login", "/etc/fish/config.fish", "/etc/ksh.kshrc", // root and user configurations "/home/*/.profile", "/home/*/.bashrc", "/home/*/.bash_login", "/home/*/.bash_logout", "/home/*/.bash_profile", "/root/.profile", "/root/.bashrc", "/root/.bash_login", "/root/.bash_logout", "/root/.bash_profile", "/root/.bash_aliases", "/home/*/.bash_aliases", "/home/*/.zprofile", "/home/*/.zshrc", "/root/.zprofile", "/root/.zshrc", "/home/*/.cshrc", "/home/*/.login", "/home/*/.logout", "/root/.cshrc", "/root/.login", "/root/.logout", "/home/*/.config/fish/config.fish", "/root/.config/fish/config.fish", "/home/*/.kshrc", "/root/.kshrc" ) and not ( process.executable in ( "/bin/dpkg", "/usr/bin/dpkg", "/bin/dockerd", "/usr/bin/dockerd", "/usr/sbin/dockerd", "/bin/microdnf", "/usr/bin/microdnf", "/bin/rpm", "/usr/bin/rpm", "/bin/snapd", "/usr/bin/snapd", "/bin/yum", "/usr/bin/yum", "/bin/dnf", "/usr/bin/dnf", "/bin/podman", "/usr/bin/podman", "/bin/dnf-automatic", "/usr/bin/dnf-automatic", "/bin/pacman", "/usr/bin/pacman", "/usr/bin/dpkg-divert", "/bin/dpkg-divert", "/sbin/apk", "/usr/sbin/apk", "/usr/local/sbin/apk", "/usr/bin/apt", "/usr/sbin/pacman", "/bin/podman", "/usr/bin/podman", "/usr/bin/puppet", "/bin/puppet", "/opt/puppetlabs/puppet/bin/puppet", "/usr/bin/chef-client", "/bin/chef-client", "/bin/autossl_check", "/usr/bin/autossl_check", "/proc/self/exe", "/usr/bin/pamac-daemon", "/bin/pamac-daemon", "/usr/lib/snapd/snapd", "/usr/sbin/adduser", "/usr/sbin/useradd", "/usr/local/bin/dockerd", "/usr/sbin/gdm", "/usr/bin/unzip", "/usr/bin/gnome-shell", "/sbin/mkhomedir_helper", "/usr/sbin/sshd", "/opt/puppetlabs/puppet/bin/ruby", "/usr/bin/xfce4-session", "/usr/libexec/oddjob/mkhomedir", "/sbin/useradd", "/usr/lib/systemd/systemd", "/usr/sbin/crond", "/usr/bin/pamac-daemon", "/usr/sbin/mkhomedir_helper", "/opt/pbis/sbin/lwsmd", "/usr/sbin/oddjobd", "./usr/bin/podman", "/usr/bin/dnf5", "/bin/dnf5", "/usr/libexec/gnome-terminal-server", "/usr/bin/buildah", "/usr/lib/venv-salt-minion/bin/python.original" ) or file.extension in ("swp", "swpx", "swx", "dpkg-remove") or file.Ext.original.extension == "dpkg-new" or process.executable like ( "/nix/store/*", "/var/lib/dpkg/*", "/tmp/vmis.*", "/snap/*", "/dev/fd/*", "/usr/lib/virtualbox/*", "/usr/libexec/platform-python*", "./snap/snapd/*/usr/lib/snapd/snap-update-ns", "/opt/alt/python*/bin/python*" ) or process.executable == null or process.name in ("adclient", "mkhomedir_helper", "teleport", "mkhomedir", "adduser", "desktopDaemon", "executor", "crio") or (process.name == "sed" and file.name like "sed*") or (process.name == "perl" and file.name like "e2scrub_all.tmp*") )
Install detection rules in Elastic Security
Detect Shell Configuration Creation 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(external, opens in a new tab or window).