osquery-defense-kit/process/unexpected-privilege-escalation.sql

SELECT p.pid AS child_pid,
    p.path AS child_path,
    p.name AS child_name,
    p.cmdline AS child_cmdline,
    p.euid AS child_euid,
    p.state AS child_state,
    file.mode AS child_mode,
    hash.sha256 AS child_hash,
    p.parent AS parent_pid,
    pp.path AS parent_path,
    pp.name AS parent_name,
    pp.cmdline AS parent_cmdline,
    pp.euid AS parent_euid,
    pfile.mode AS parent_mode,
    hash.sha256 AS parent_hash
FROM processes p
    JOIN processes pp ON p.parent = pp.pid
    LEFT JOIN file ON p.path = file.path
    LEFT JOIN hash ON p.path = hash.path
    LEFT JOIN file AS pfile ON pp.path = file.path
    LEFT JOIN hash AS phash ON pp.path = hash.path
WHERE p.euid < pp.euid
    AND p.path NOT IN (
        '/usr/bin/fusermount',
        '/usr/bin/fusermount3',
        '/usr/bin/login',
        '/usr/bin/sudo',
        '/usr/bin/doas',
        '/bin/ps',
        '/usr/bin/top'
    )
    AND p.path NOT LIKE "/nix/store/%/bin/sudo"
    AND p.path NOT LIKE "/nix/store/%/bin/dhcpcd"
    AND NOT (
        p.name = 'polkit-agent-he' AND parent_path='/usr/bin/gnome-shell'
    )
    AND NOT (
        p.name = 'fusermount3' AND parent_path='/usr/lib/xdg-document-portal'
    )