mirror of
https://github.com/chainguard-dev/osquery-defense-kit
synced 2024-12-17 19:44:31 +00:00
50 lines
1.3 KiB
SQL
50 lines
1.3 KiB
SQL
-- Find root-run processes which link against libpf
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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: posix
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-- tags: persistent state process sniffer
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SELECT
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pmm.pid,
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pmm.path AS lib_path,
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p.path,
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p.name,
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p.cmdline,
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p.cwd,
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p.euid,
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p.parent,
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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_cmdline,
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pp.cwd AS parent_cwd,
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pp.euid AS parent_euid,
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hash.sha256 AS child_sha256,
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phash.sha256 AS parent_sha256
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-- Using processes is much faster than process_memory_map
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FROM
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processes p
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LEFT JOIN process_memory_map pmm ON p.pid = pmm.pid
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LEFT JOIN processes pp ON p.parent = pp.pid
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LEFT JOIN hash ON p.path = hash.path
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LEFT JOIN hash AS phash ON pp.path = phash.path
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WHERE
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p.euid = 0
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AND (
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lib_path LIKE '%:bpf%'
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OR lib_path LIKE '%libbpf%'
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)
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AND p.path NOT IN (
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'/usr/bin/qemu-system-x86_64',
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'/usr/lib/systemd/systemd',
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'/usr/lib/systemd/systemd-nsresourced',
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'/var/opt/Elastic/Endpoint/elastic-endpoint',
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'/opt/Elastic/Endpoint/elastic-endpoint'
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)
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AND p.cmdline != '/usr/bin/python3 /usr/sbin/execsnoop-bpfcc'
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AND p.path NOT LIKE '/nix/store/%/lib/systemd/systemd'
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GROUP BY
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pmm.pid
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