149 lines
4.0 KiB
SQL
149 lines
4.0 KiB
SQL
-- Unexpected process that spawns shell processes
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--
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-- false positives:
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-- * IDE's
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--
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-- references:
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-- * https://attack.mitre.org/techniques/T1059/ (Command and Scripting Interpreter)
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-- * https://attack.mitre.org/techniques/T1204/002/ (User Execution: Malicious File)
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--
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-- tags: transient process state
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-- platform: posix
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SELECT
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p.name,
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p.path AS path,
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p.cmdline AS cmd,
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p.pid,
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p.parent,
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pp.name AS parent_name,
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pp.path AS parent_path,
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pp.cmdline AS parent_cmd,
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hash.sha256 AS parent_sha256
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FROM
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processes p
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LEFT JOIN processes pp ON pp.pid = p.parent
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LEFT JOIN hash ON pp.path = hash.path
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WHERE
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p.name IN ('sh', 'fish', 'zsh', 'bash', 'dash', 'osascript')
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-- Ignore partial table joins
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AND parent_path != ''
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-- Editors & terminals mostly.
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-- I know it's tempting to list "electron" here but please find a more specific exclusion.
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AND pp.name NOT IN (
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'abrt-handle-eve',
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'alacritty',
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'bash',
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'build-script-build',
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'chezmoi',
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'clang-11',
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'Code Helper (Renderer)',
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'Code - Insiders Helper (Renderer)',
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'collect2',
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'conmon',
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'containerd-shim',
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'dash',
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'demoit',
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'direnv',
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'doas',
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'find',
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'FinderSyncExtension',
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'fish',
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'go',
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'goland',
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'helm',
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'java',
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'ko',
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'kubectl',
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'make',
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'monorail',
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'nix',
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'nix-build',
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'nix-daemon',
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'node',
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'nvim',
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'package_script_service',
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'perl',
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'PK-Backend',
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'python',
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'roxterm',
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'sdzoomplugin',
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'sh',
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'skhd',
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'sshd',
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'swift',
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'systemd',
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'terminator',
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'test2json',
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'tmux',
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'tmux:server',
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'vi',
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'vim',
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'watch',
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'wezterm-gui',
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'xargs',
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'xcrun',
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'xfce4-terminal',
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'yum',
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'zsh'
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)
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AND parent_path NOT IN (
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'/Applications/Docker.app/Contents/MacOS/Docker',
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'/bin/dash',
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'/bin/sh',
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'/Library/Google/GoogleSoftwareUpdate/GoogleSoftwareUpdate.bundle/Contents/Helpers/GoogleSoftwareUpdateDaemon',
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'/opt/X11/libexec/launchd_startx',
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'/sbin/launchd',
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'/usr/lib/xorg/Xorg',
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'/usr/bin/alacritty',
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'/usr/bin/apt-get',
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'/usr/bin/bash',
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'/usr/bin/bwrap',
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'/usr/bin/sysdiagnose',
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'/usr/bin/crond',
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'/usr/bin/login',
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'/Applications/IntelliJ IDEA.app/Contents/MacOS/idea',
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'/Applications/Docker.app/Contents/Resources/bin/com.docker.cli',
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'/usr/bin/man',
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'/usr/bin/sudo',
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'/usr/bin/xargs',
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'/usr/bin/zsh',
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'/usr/libexec/gnome-terminal-server',
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'/usr/libexec/periodic-wrapper',
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'/usr/bin/su'
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)
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-- npm run server
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AND NOT p.cmdline IN (
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'sh -c -- exec-bin node_modules/.bin/hugo/hugo server',
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'sh -c xcode-select --print-path >/dev/null 2>&1 && xcrun --sdk macosx --show-sdk-path 2>/dev/null'
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)
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AND NOT (
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pp.name = 'sshd'
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AND p.cmdline LIKE '%askpass%'
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)
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AND NOT (
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pp.name = 'bash'
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AND p.cmdline LIKE 'sh -s _hostname %'
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)
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AND NOT (
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pp.cmdline LIKE 'perl%/help2man%'
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AND p.cmdline LIKE 'sh -c man/%'
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)
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AND NOT p.cmdline LIKE '%/Library/Apple/System/Library/InstallerSandboxes%'
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AND NOT p.cmdline LIKE '%gcloud config config-helper%'
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AND NOT pp.cmdline LIKE '/Applications/Warp.app/%'
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AND NOT pp.cmdline LIKE '%brew.rb%'
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AND NOT pp.cmdline LIKE '%/Homebrew/build.rb%'
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AND NOT pp.cmdline LIKE '%Code Helper%'
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AND NOT pp.cmdline LIKE '%gcloud.py config config-helper%'
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AND NOT pp.cmdline LIKE '/usr/lib/electron19/electron /usr/lib/code/out/bootstrap-fork --type=ptyHost --logsPath /home/%/.config/Code - OSS/logs/%'
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AND NOT pp.name LIKE '%term%'
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AND NOT pp.name LIKE '%Term%'
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AND NOT pp.name LIKE 'Emacs%'
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AND NOT pp.name LIKE 'terraform-provider-%'
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AND NOT pp.path LIKE '/Users/%/Library/Google/GoogleSoftwareUpdate/GoogleSoftwareUpdate.bundle/Contents/Helpers/GoogleSoftwareUpdateAgent.app/Contents/MacOS/GoogleSoftwareUpdateAgent'
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-- Oh, NixOS.
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AND NOT pp.name LIKE '%/bin/bash'
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AND NOT pp.name LIKE '%/bin/direnv'
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AND NOT parent_path LIKE '/nix/store/%sh'
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AND NOT parent_path LIKE '/opt/homebrew/%'
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