diff --git a/detection/collection/high-disk-bytes-written.sql b/detection/collection/high-disk-bytes-written.sql
new file mode 100644
index 0000000..8854262
--- /dev/null
+++ b/detection/collection/high-disk-bytes-written.sql
@@ -0,0 +1,114 @@
+-- Programs which are writing an unusually large amount of data
+--
+-- Can be used to detect ransomware
+--
+-- false positives:
+--   * Package managers
+--   * Backup software
+--
+-- references:
+--   * https://attack.mitre.org/tactics/TA0009/ (Collection)
+--
+-- tags: transient process
+SELECT
+  p.name,
+  p.path,
+  p.pid,
+  p.cmdline,
+  p.on_disk,
+  p.parent,
+  p.start_time,
+  hash.sha256,
+  p.disk_bytes_written,
+  p.cwd,
+  (strftime('%s', 'now') - start_time) AS age,
+  disk_bytes_written / (strftime('%s', 'now') - start_time) AS bytes_per_second
+FROM
+  processes p
+  LEFT JOIN hash ON p.path = hash.path
+WHERE
+  bytes_per_second > 2500000
+  AND age > 120
+  AND pid > 2
+  AND p.path NOT IN (
+    '/bin/bash',
+    '/opt/homebrew/bin/qemu-system-aarch64',
+    '/usr/bin/aptd',
+    '/usr/bin/bash',
+    '/usr/bin/bwrap',
+    '/usr/bin/curl',
+    '/usr/bin/dockerd',
+    '/usr/bin/fish',
+    '/usr/bin/gnome-shell',
+    '/usr/bin/make',
+    '/usr/bin/melange',
+    '/usr/bin/qemu-system-x86_64',
+    '/usr/bin/yay',
+    '/usr/bin/zsh',
+    '/usr/lib64/thunderbird/thunderbird',
+    '/usr/libexec/coreduetd',
+    '/usr/libexec/packagekitd',
+    '/usr/libexec/rosetta/oahd',
+    '/usr/libexec/secd',
+    '/usr/libexec/sharingd',
+    '/usr/lib/flatpak-system-helper',
+    '/usr/lib/systemd/systemd',
+    '/usr/lib/systemd/systemd-journald',
+    '/usr/sbin/screencapture'
+  )
+  AND NOT (
+    name LIKE 'jbd%/dm-%'
+    AND on_disk = -1
+  )
+  AND NOT (
+    name = 'bindfs'
+    AND cmdline LIKE 'bindfs -f -o fsname=%'
+  )
+  AND NOT (
+    name = 'btrfs-transaction'
+    AND on_disk = -1
+  )
+  AND NOT (
+    name = 'kernel_task'
+    AND p.path = ''
+    AND parent IN (0, 1)
+    AND on_disk = -1
+  )
+  AND NOT (
+    name = 'launchd'
+    AND p.path = '/sbin/launchd'
+    AND parent = 0
+  )
+  AND NOT (
+    name = 'logd'
+    AND cmdline = '/usr/libexec/logd'
+    AND parent = 1
+  )
+  AND NOT (
+    name = 'aptd'
+    AND cmdline = '/usr/bin/python3 /usr/sbin/aptd'
+  )
+  AND NOT name IN (
+    'chrome',
+    'com.apple.MobileSoftwareUpdate.UpdateBrainService',
+    'containerd',
+    'esbuild',
+    'firefox',
+    'go',
+    'goland',
+    'java',
+    'launcher',
+    'gopls',
+    'jetbrains-toolb',
+    'slack',
+    'slack',
+    'wineserver'
+  )
+  AND p.path NOT LIKE '/Applications/%.app/Contents/%'
+  AND p.path NOT LIKE '/home/%/.local/share/Steam'
+  AND p.path NOT LIKE '/nix/store/%/bin/%sh'
+  AND p.path NOT LIKE '/nix/store/%/bin/nix'
+  AND p.path NOT LIKE '/System/Applications/%'
+  AND p.path NOT LIKE '/System/Library/%'
+  AND p.path NOT LIKE '/usr/local/kolide-k2/bin/osqueryd-updates/%/osqueryd'
+  AND p.path NOT LIKE '/nix/store/%kolide-launcher-%/bin/launcher'
diff --git a/detection/collection/spotlight-database-export-macos.sql b/detection/collection/spotlight-database-export-macos.sql
new file mode 100644
index 0000000..d7e7338
--- /dev/null
+++ b/detection/collection/spotlight-database-export-macos.sql
@@ -0,0 +1,34 @@
+-- Find database exports. Will need tuning based on your table names.
+--
+-- false positives:
+--   * none observed
+--
+-- references:
+--   * https://attack.mitre.org/techniques/T1530/ (Data from Cloud Storage Object )
+--
+-- platform: darwin
+-- tags: persistent filesystem spotlight
+SELECT
+  f.path,
+  f.size,
+  datetime(f.btime, 'unixepoch') AS file_created,
+  magic.data
+FROM
+  file f
+  JOIN mdfind ON mdfind.path = f.path
+  LEFT JOIN magic ON f.path = magic.path
+WHERE
+  (
+    (
+      mdfind.query = 'kMDItemFSName == ''*enforce*'' && kMDItemTextContent == ''CREATE TABLE'''
+    )
+    OR (
+      mdfind.query = 'kMDItemFSName == ''*iam*'' && kMDItemTextContent == ''CREATE TABLE'''
+    )
+    OR (
+      mdfind.query = 'kMDItemFSName == ''*tenant*'' && kMDItemTextContent == ''CREATE TABLE'''
+    )
+  )
+  AND f.path NOT LIKE '%.json'
+  AND f.path NOT LIKE '%.log'
+  AND f.size > 32768
diff --git a/incident_response/open_sockets.sql b/incident_response/open_sockets.sql
new file mode 100644
index 0000000..8b09e2d
--- /dev/null
+++ b/incident_response/open_sockets.sql
@@ -0,0 +1,18 @@
+-- Retrieves all the open sockets per process in the target system.
+--
+-- tags: postmortem
+-- platform: posix
+SELECT DISTINCT
+  pid,
+  family,
+  protocol,
+  local_address,
+  local_port,
+  remote_address,
+  remote_port,
+  path
+FROM
+  process_open_sockets
+WHERE
+  path <> ''
+  or remote_address <> '';