osquery-defense-kit/detection/execution/unexpected-root-signer-maco...

82 lines
2.8 KiB
SQL

-- Programs running as root from unusual signers on macOS
--
-- platform: darwin
-- tags: transient seldom process state
SELECT
p.pid,
p.name,
p.path,
p.euid,
p.gid,
f.ctime,
f.directory AS dir,
REGEX_MATCH (p.path, '(/.*?/.*?)/', 1) AS top_dir,
p.cmdline,
hash.sha256,
pp.path AS parent_path,
pp.name AS parent_name,
pp.cmdline AS parent_cmdline,
pp.euid AS parent_euid,
hash.sha256 AS parent_sha256,
signature.identifier,
signature.authority
FROM
processes p
LEFT JOIN file f ON p.path = f.path
LEFT JOIN hash ON hash.path = p.path
LEFT JOIN users u ON p.uid = u.uid
LEFT JOIN processes pp ON p.parent = pp.pid
LEFT JOIN signature ON p.path = signature.path
WHERE
-- query optimization: Exclude SIP protected directories
p.euid = 0
AND top_dir NOT IN (
'/Library/Apple',
'/System/Library',
'/usr/bin',
'/usr/libexec',
'/usr/sbin'
)
AND signature.authority NOT IN (
'Developer ID Application: Adobe Inc. (JQ525L2MZD)',
'Developer ID Application: Docker Inc (9BNSXJN65R)',
'Developer ID Application: Dropbox, Inc. (G7HH3F8CAK)',
'Developer ID Application: Foxit Corporation (8GN47HTP75)',
'Developer ID Application: Fumihiko Takayama (G43BCU2T37)',
'Developer ID Application: Google LLC (EQHXZ8M8AV)',
'Developer ID Application: Kolide Inc (YZ3EM74M78)',
'Developer ID Application: Logitech Inc. (QED4VVPZWA)',
'Developer ID Application: Mersive Technologies (63B5A5WDNG)',
'Developer ID Application: Keybase, Inc. (99229SGT5K)',
'Developer ID Application: Microsoft Corporation (UBF8T346G9)',
'Developer ID Application: Objective Development Software GmbH (MLZF7K7B5R)',
'Developer ID Application: Objective-See, LLC (VBG97UB4TA)',
'Developer ID Application: Opal Camera Inc (97Z3HJWCRT)',
'Developer ID Application: OSQUERY A Series of LF Projects, LLC (3522FA9PXF)',
'Developer ID Application: Parallels International GmbH (4C6364ACXT)',
-- I'm not too thrilled to have this as an exception, to be honest.
'Developer ID Application: Private Internet Access, Inc. (5357M5NW9W)',
'Developer ID Application: Sanford, L.P. (N3S6676K3E)',
'Software Signing'
)
AND NOT (
signature.authority = ""
AND p.path LIKE "/nix/store/%-nix-%/bin/nix"
AND pp.path = "/sbin/launchd"
)
AND NOT (
signature.authority = ""
AND p.path LIKE "/opt/%/bin/socket_vmnet"
AND pp.path IN ("/usr/bin/sudo", "/sbin/launchd")
)
AND NOT (
signature.authority = ""
AND p.path LIKE "/opt/homebrew/Cellar/mariadb/%/bin/mariadbd"
AND cmdline LIKE "/opt/homebrew/opt/mariadb/bin/mariadbd %"
)
AND NOT (
signature.authority = "Developer ID Application: Node.js Foundation (HX7739G8FX)"
AND p.name = "node"
AND parent_name IN ("vim", "nvim")
)