Potential Execution via SSH Backdoor

sequence by host.id with maxspan=1m
  [process where host.os.type == "linux" and event.action == "end" and process.name == "sshd" and process.exit_code != 0 and
   process.command_line == "/usr/sbin/sshd -D -R" and process.parent.command_line == "sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups"] by process.entity_id
  [process where host.os.type == "linux" and event.type == "start" and event.action == "exec" and
   process.parent.name == "sshd" and process.parent.command_line == "/usr/sbin/sshd -D -R" and
   process.name in ("bash", "dash", "sh", "tcsh", "csh", "zsh", "ksh", "fish") and process.args == "-c" and not (
     process.args like (
       "rsync*", "systemctl*", "/usr/sbin/unix_chkpwd", "/usr/bin/google_authorized_keys", "/usr/sbin/aad_certhandler*",
        "bash -c bash -s", "/usr/lib/ssh/sftp-server", "stat /etc/is_upgrade_install > /dev/null 2>&1",
        "stat /opt/qradar/ha/.*", "/usr/bin/env -i PATH=*", "/opt/gitlab/*", "clamdscan*", "wc*", "export*",
        "test*", "md5sum*", "check_mk_agent", "/usr/bin/env*", "/usr/bin/check_mk_agent", "timeout*", "/usr/sbin/haproxy*",
        "/usr/libexec/openssh/sftp-server", "command*", "find*", "cd *", "scp*", "while*", "pvesh*", "/bin/true",
        "/usr/sbin/qm mtunnel", "multipath*", "/usr/lib/openssh/sftp-server"
     ) or
     process.command_line like ("sh -c /usr/bin/env -i PATH=*", "sh -c -- /usr/bin/env -i PATH=*", "*ansible*", "*BECOME-SUCCESS*")
   )
  ] by process.parent.entity_id