mirror of
https://github.com/chainguard-dev/osquery-defense-kit
synced 2024-12-21 21:39:59 +00:00
66 lines
2.0 KiB
SQL
66 lines
2.0 KiB
SQL
-- Find processes that run with a lower effective UID than their parent (state-based)
|
|
--
|
|
-- references:
|
|
-- * https://attack.mitre.org/techniques/T1548/001/ (Setuid and Setgid)
|
|
-- * https://cybersecurity.att.com/blogs/labs-research/shikitega-new-stealthy-malware-targeting-linux
|
|
--
|
|
-- related:
|
|
-- * unexpected-privilege-escalation-events.sql
|
|
--
|
|
-- tags: transient state process escalation
|
|
-- platform: darwin
|
|
SELECT
|
|
s.authority AS p0_auth,
|
|
s.identifier AS p0_id,
|
|
p0.uid AS p0_uid,
|
|
-- 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
|
|
processes p0
|
|
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
|
|
p0.euid < p0.uid
|
|
AND p0.path NOT IN (
|
|
'',
|
|
'/bin/ps',
|
|
'/Applications/Parallels Desktop.app/Contents/MacOS/Parallels Service',
|
|
'/Library/Application Support/org.pqrs/Karabiner-Elements/bin/karabiner_session_monitor',
|
|
'/Library/DropboxHelperTools/Dropbox_u501/dbkextd',
|
|
'/usr/bin/login',
|
|
'/usr/bin/su',
|
|
'/usr/bin/sudo',
|
|
'/usr/bin/top',
|
|
'/usr/local/bin/doas',
|
|
'/Applications/VMware Fusion.app/Contents/Library/vmware-vmx'
|
|
)
|
|
AND NOT (
|
|
p0.path LIKE '/var/folders/%/T/CanonOFI_TEMP/Data/Software/Install/UniversalInstaller.app/Contents/Frameworks/UIx.framework/Resources/relay'
|
|
AND s.authority = 'Developer ID Application: Canon Inc. (XE2XNRRXZ5)'
|
|
)
|