53 lines
1.6 KiB
SQL
53 lines
1.6 KiB
SQL
-- Find root-run processes which link against libpcap
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--
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-- WARNING: This check consumes an unusual amount of system memory (up to 225MB)
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--
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-- references:
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-- * https://attack.mitre.org/techniques/T1205/001/ (Traffic Signaling: Port Knocking)
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--
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-- platform: darwin
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-- tags: persistent state process sniffer
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SELECT
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pmm.pid,
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p.uid,
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p.gid,
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pmm.path AS lib_path,
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p.path AS child_path,
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p.name AS child_name,
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p.cmdline AS child_cmd,
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p.cwd AS child_cwd,
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h.sha256 AS child_sha256,
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pp.path AS parent_path,
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pp.name AS parent_name,
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pp.cmdline AS parent_cmd,
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pp.cwd AS parent_cwd,
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pp.euid AS parent_euid,
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ph.sha256 AS parent_sha256,
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s.authority,
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s.identifier
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FROM
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process_memory_map pmm
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LEFT JOIN processes p ON pmm.pid = p.pid
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LEFT JOIN hash h ON p.path = h.path
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LEFT JOIN processes pp ON p.parent = pp.pid
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LEFT JOIN hash AS ph ON pp.path = ph.path
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LEFT JOIN signature s ON p.path = s.path
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WHERE
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pmm.path LIKE '%libpcap%'
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AND p.euid = 0 -- These are all protected directories
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AND child_path NOT LIKE '/System/%'
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AND child_path NOT LIKE '/usr/libexec/%'
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AND child_path NOT LIKE '/usr/sbin/%'
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AND child_path NOT LIKE '/usr/bin/%'
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AND child_path NOT LIKE '/nix/store/%/bin/nix'
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AND child_path NOT LIKE '/opt/homebrew/Cellar/vim/%/bin/vim'
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AND child_path NOT LIKE '/usr/local/kolide-k2/bin/osqueryd-updates/%/osqueryd'
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AND NOT s.authority IN (
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'Software Signing',
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'Apple Mac OS Application Signing',
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'Developer ID Application: Kolide Inc (YZ3EM74M78)',
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'Developer ID Application: Docker Inc (9BNSXJN65R)'
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)
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GROUP BY
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pmm.pid
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