osquery-defense-kit/fd/unexpected-pcap-user-macos.sql

-- Find root-run processes which link against libpcap
-- WARNING: This check consumes an unusual amount of system memory (up to 225MB)
SELECT
  pmm.pid,
  p.uid,
  p.gid,
  pmm.path AS lib_path,
  p.path AS child_path,
  p.name AS child_name,
  p.cmdline AS child_cmd,
  p.cwd AS child_cwd,
  h.sha256 AS child_sha256,
  pp.path AS parent_path,
  pp.name AS parent_name,
  pp.cmdline AS parent_cmd,
  pp.cwd AS parent_cwd,
  pp.euid AS parent_euid,
  ph.sha256 AS parent_sha256,
  s.authority,
  s.identifier
FROM
  process_memory_map pmm
  LEFT JOIN processes p ON pmm.pid = p.pid
  LEFT JOIN hash h ON p.path = h.path
  LEFT JOIN processes pp ON p.parent = pp.pid
  LEFT JOIN hash AS ph ON pp.path = ph.path
  LEFT JOIN signature s ON p.path = s.path
WHERE
  pmm.path LIKE "%libpcap%"
  AND p.euid = 0
  AND child_path NOT LIKE "/usr/local/kolide-k2/bin/osqueryd-updates/%/osqueryd"
  AND child_path NOT LIKE "/nix/store/%-systemd-%/lib/systemd/systemd-journald"
  AND child_path NOT LIKE "/nix/store/%-systemd-%/lib/systemd/systemd-logind"
  AND child_path NOT LIKE "/nix/store/%-systemd-%/bin/udevadm"
  AND child_path NOT LIKE "/opt/homebrew/Cellar/telepresence%"
  AND child_path NOT LIKE "/System/Library/%"
  AND child_path NOT LIKE "/nix/store/%/bin/nix"
  AND child_path NOT IN (
    "/usr/libexec/UserEventAgent",
    "/usr/sbin/systemstats",
    "/usr/bin/libvirtd",
    "/usr/sbin/cupsd"
  )
  AND child_cmd NOT IN (
    "/nix/var/nix/profiles/default/bin/nix-daemon",
    "/run/current-system/systemd/lib/systemd/systemd",
    "/usr/bin/python3 -s /usr/sbin/firewalld --nofork --nopid"
  )
GROUP BY
  pmm.pid