65 lines
1.5 KiB
SQL
65 lines
1.5 KiB
SQL
-- Linux program uses LibTomCrypt (rare)
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--
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-- reference:
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-- * https://www.deepinstinct.com/blog/bpfdoor-malware-evolves-stealthy-sniffing-backdoor-ups-its-game
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--
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-- tags: persistent
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-- interval: 3600
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-- platform: posix
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SELECT
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yara.strings,
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-- Child
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p0.pid AS p0_pid,
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p0.path AS p0_path,
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p0.name AS p0_name,
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p0.start_time AS p0_start,
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p0.cmdline AS p0_cmd,
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p0.cwd AS p0_cwd,
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p0.cgroup_path AS p0_cgroup,
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p0.euid AS p0_euid,
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p0_hash.sha256 AS p0_sha256,
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-- Parent
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p0.parent AS p1_pid,
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p1.path AS p1_path,
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p1.name AS p1_name,
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p1.start_time AS p1_start,
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p1.euid AS p1_euid,
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p1.cmdline AS p1_cmd,
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p1_hash.sha256 AS p1_sha256,
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-- Grandparent
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p1.parent AS p2_pid,
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p2.name AS p2_name,
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p2.start_time AS p2_start,
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p2.path AS p2_path,
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p2.cmdline AS p2_cmd,
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p2_hash.sha256 AS p2_sha256
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FROM
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processes p0
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JOIN yara ON p0.path = yara.path
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LEFT JOIN hash p0_hash ON p0.path = p0_hash.path
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LEFT JOIN processes p1 ON p0.parent = p1.pid
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LEFT JOIN hash p1_hash ON p1.path = p1_hash.path
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LEFT JOIN processes p2 ON p1.parent = p2.pid
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LEFT JOIN hash p2_hash ON p2.path = p2_hash.path
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WHERE
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p0.pid IN (
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SELECT
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pid
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FROM
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processes
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WHERE
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start_time > (strftime('%s', 'now') - 3600)
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AND path != ""
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GROUP BY
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path
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)
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AND yara.sigrule = '
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rule redflags {
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strings:
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$libtomcrypt = "LibTomCrypt"
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$email = "tomstdenis@gmail.com"
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condition:
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filesize < 10MB and 1 of them
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}'
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AND yara.count > 0
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