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

47 lines
1.5 KiB
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
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
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 "/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