161 lines
4.5 KiB
SQL
161 lines
4.5 KiB
SQL
-- Pick out exotic processes based on their command-line (state-based)
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--
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-- false positives:
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-- * possible, but none known
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--
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-- tags: transient process state
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-- platform: linux
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SELECT
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DATETIME(f.ctime, 'unixepoch') AS p0_changed,
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DATETIME(f.mtime, 'unixepoch') AS p0_modified,
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(strftime('%s', 'now') - p0.start_time) AS p0_runtime_s,
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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.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_f.mode AS p1_mode,
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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.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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LEFT JOIN file f ON p0.path = f.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 file p1_f ON p1.path = p1_f.path
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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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-- Known attack scripts
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(
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p0.name IN (
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'bitspin',
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'bpftool',
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'heyoka',
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'nstx',
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'dnscat2',
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'tuns',
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'iodine',
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'esxcli',
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'vim-cmd',
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'minerd',
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'cpuminer-multi',
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'cpuminer',
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'httpdns',
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'rshell',
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'rsh',
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'xmrig',
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'incbit',
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'insmod',
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'kmod',
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'lushput',
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'mkfifo',
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'msfvenom',
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'nc',
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'socat'
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)
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OR p0.name LIKE '%pwn%'
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OR p0.name LIKE '%xig%'
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OR p0.name LIKE '%xmr%'
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OR p0.cmdline LIKE '%--pool%'
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OR p0.cmdline LIKE '%--algo%'
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OR p0.cmdline LIKE '%--wss%'
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OR p0.cmdline LIKE '%wormhole%'
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OR p0.cmdline LIKE '%bitspin%'
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OR p0.cmdline LIKE '%lushput%'
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OR p0.cmdline LIKE '%incbit%'
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OR p0.cmdline LIKE '%traitor%'
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OR p0.cmdline LIKE '%ethereum%'
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OR p0.cmdline LIKE '%msfvenom%'
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-- Unusual behaviors
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OR p0.cmdline LIKE '%ufw disable%'
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OR p0.cmdline LIKE '%dd if=/dev/%'
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OR p0.cmdline LIKE '%iptables -P % ACCEPT%'
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OR p0.cmdline LIKE '%iptables -F%'
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OR p0.cmdline LIKE '%chattr -ia%'
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OR p0.cmdline LIKE '%chflags uchg%'
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OR p0.cmdline LIKE '%bpftool%'
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OR p0.cmdline LIKE '%tar % .%'
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OR p0.cmdline LIKE '%tar %/.%'
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OR p0.cmdline LIKE '%.config%gcloud%'
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OR p0.cmdline LIKE '%.config/%chrome%'
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OR p0.cmdline LIKE '%touch%acmr%'
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OR p0.cmdline LIKE '%ld.so.preload%'
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OR p0.cmdline LIKE '%urllib.urlopen%'
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OR p0.cmdline LIKE '%nohup%tmp%'
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OR p0.cmdline LIKE '%chrome%--load-extension%'
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OR (
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p0.cmdline LIKE '%UserKnownHostsFile=/dev/null%'
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AND NOT p1.name = 'limactl'
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AND NOT p0.cmdline LIKE '%@localhost%'
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AND NOT p0.cmdline LIKE '%@localhost -A%'
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) -- Crypto miners
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OR p0.cmdline LIKE '%hashrate%'
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OR p0.cmdline LIKE '%hashvault%'
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OR p0.cmdline LIKE '%minerd%'
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OR p0.cmdline LIKE '%nanopool%'
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OR p0.cmdline LIKE '%nicehash%'
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OR p0.cmdline LIKE '%stratum%' -- Random keywords
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OR p0.cmdline LIKE '%plant%' -- Reverse shells
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OR p0.cmdline LIKE '%/dev/%cp/%'
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OR p0.cmdline LIKE '%fsockopen%'
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OR p0.cmdline LIKE '%openssl%quiet%'
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OR p0.cmdline LIKE '%pty.spawn%'
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OR (
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p0.cmdline LIKE '%sh -i'
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AND NOT p0.path = '/usr/bin/docker'
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AND NOT p1.name IN (
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'code',
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'containerd-shim',
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'emacs',
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'goland',
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'java',
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'pycharm',
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'sh',
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'vim',
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'vim.nox'
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)
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AND NOT p1.cmdline LIKE '%pipenv shell'
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AND NOT p0.cgroup_path LIKE '/system.slice/docker-%'
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AND NOT p0.cgroup_path LIKE '/user.slice/user-1000.slice/user@1000.service/user.slice/nerdctl-%'
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)
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OR p0.cmdline LIKE '%SOCK_STREAM%'
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OR INSTR(p0.cmdline, '%Socket.%') > 0 -- Keep the shell running, as in https://blog.aquasec.com/threat-alert-kinsing-malware-container-vulnerability
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OR (
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p0.cmdline LIKE '%tail -f /dev/null%'
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AND NOT p0.cmdline LIKE 'docker run%'
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AND NOT p0.cgroup_path LIKE '/system.slice/docker-%'
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AND NOT p1.pid == 0
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)
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)
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AND NOT p0.cmdline like '%socat UNIX-LISTEN:%com.discordapp%discord-ipc%'
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AND NOT p0.cmdline IN ('nc 127.0.0.1 5900')
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AND NOT p0.name IN (
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'cc1',
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'git',
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'emacs',
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'espeak',
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'compile',
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'bwrap',
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'cmake',
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'cc1plus',
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'chrome_crashpad'
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)
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AND NOT p1.name IN ('bwrap')
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