osquery-defense-kit/detection/credentials/macos_keyboard_sniffer.sql

77 lines
2.7 KiB
SQL

-- Find programs that are sniffing keyboard events on macOS
--
-- references:
-- * https://attack.mitre.org/techniques/T1056/001/ (Input Capture: Keylogging)
--
-- platform: darwin
-- tags: persistent state sniffer
SELECT
et.enabled,
et.process_being_tapped,
et.tapping_process,
CONCAT (
REPLACE(
p0.path,
RTRIM(p0.path, REPLACE(p0.path, '/', '')),
''
),
',',
s.identifier,
',',
s.authority
) AS exception_key,
---
s.authority,
s.identifier,
-- Child
p0.pid AS p0_pid,
p0.path AS p0_path,
p0.name AS p0_name,
p0.cmdline AS p0_cmd,
p0.cwd AS p0_cwd,
p0.euid AS p0_euid,
p0_hash.sha256 AS p0_sha256,
-- Parent
p0.parent AS p1_pid,
p1.path AS p1_path,
p1.name AS p1_name,
p1_f.mode AS p1_mode,
p1.euid AS p1_euid,
p1.cmdline AS p1_cmd,
p1_hash.sha256 AS p1_sha256,
-- Grandparent
p1.parent AS p2_pid,
p2.name AS p2_name,
p2.path AS p2_path,
p2.cmdline AS p2_cmd,
p2_hash.sha256 AS p2_sha256
FROM
event_taps et
LEFT JOIN processes p0 ON et.tapping_process = p0.pid
LEFT JOIN signature s ON p0.path = s.path
LEFT JOIN hash p0_hash ON p0.path = p0_hash.path
LEFT JOIN processes p1 ON p0.parent = p1.pid
LEFT JOIN file p1_f ON p1.path = p1_f.path
LEFT JOIN hash p1_hash ON p1.path = p1_hash.path
LEFT JOIN processes p2 ON p1.parent = p2.pid
LEFT JOIN hash p2_hash ON p2.path = p2_hash.path
WHERE
et.event_tapped IN ('EventKeyDown', 'EventKeyUp')
AND s.authority != 'Software Signing' -- Popular programs that sniff keyboard events, but do not appear to be malware.
AND NOT exception_key IN (
'BetterTouchTool,com.hegenberg.BetterTouchTool,Developer ID Application: folivora.AI GmbH (DAFVSXZ82P)',
'Contexts,com.contextsformac.Contexts,Developer ID Application: Usman Khalid (RZ7E748ZSC)',
'Hyperkey,com.knollsoft.Hyperkey,Developer ID Application: Ryan Hanson (XSYZ3E4B7D)',
'iTerm2,com.googlecode.iterm2,Developer ID Application: GEORGE NACHMAN (H7V7XYVQ7D)',
'lghub_agent,com.logi.ghub.agent,Developer ID Application: Logitech Inc. (QED4VVPZWA)',
'logioptionsplus_agent,com.logi.cp-dev-mgr,Developer ID Application: Logitech Inc. (QED4VVPZWA)',
'MonitorControl,me.guillaumeb.MonitorControl,Developer ID Application: Joni Van Roost (CYC8C8R4K9)',
'Rocket,net.matthewpalmer.Rocket,Developer ID Application: Matthew Palmer (Z4JV2M65MH)',
'skhd,skhd,',
'Rocket,net.matthewpalmer.Rocket,Developer ID Application: Matthew Palmer (Z4JV2M65MH)',
'TextExpander,com.smileonmymac.textexpander,Developer ID Application: SmileOnMyMac, LLC (7PKJ6G4DXL)',
'osqueryd,io.osquery.agent,Developer ID Application: OSQUERY A Series of LF Projects, LLC (3522FA9PXF)'
)
GROUP BY
p0.path