[SIEM] Put the notice for rules in comment block (#56123)

* Put the notice for rules in comment block

This comment block marked by `@notice` is picked up by automation and included
in the Kibana NOTICE.txt that we ship with the tar.gz.

Follow up for #56090.

Author: tsg

NOTICE.txt

@@ -153,6 +153,40 @@ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
+---
+This product bundles rules based on https://github.com/BlueTeamLabs/sentinel-attack
+which is available under a "MIT" license. The files based on this license are:
+
+- windows_defense_evasion_via_filter_manager.json
+- windows_process_discovery_via_tasklist_command.json
+- windows_priv_escalation_via_accessibility_features.json
+- windows_persistence_via_application_shimming.json
+- windows_execution_via_trusted_developer_utilities.json
+- windows_execution_via_net_com_assemblies.json
+- windows_execution_via_connection_manager.json
+
+MIT License
+
+Copyright (c) 2019 Edoardo Gerosa, Olaf Hartong
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
 ---
 This product includes code that is adapted from mapbox-gl-js, which is
 available under a "BSD-3-Clause" license.

x-pack/legacy/plugins/siem/server/lib/detection_engine/rules/prepackaged_rules/NOTICE.txt

@@ -0,0 +1,36 @@
+/* eslint-disable @kbn/eslint/require-license-header */
+
+/* @notice
+ * This product bundles rules based on https://github.com/BlueTeamLabs/sentinel-attack
+ * which is available under a "MIT" license. The files based on this license are:
+ *
+ * - windows_defense_evasion_via_filter_manager.json
+ * - windows_process_discovery_via_tasklist_command.json
+ * - windows_priv_escalation_via_accessibility_features.json
+ * - windows_persistence_via_application_shimming.json
+ * - windows_execution_via_trusted_developer_utilities.json
+ * - windows_execution_via_net_com_assemblies.json
+ * - windows_execution_via_connection_manager.json
+ *
+ * MIT License
+ *
+ * Copyright (c) 2019 Edoardo Gerosa, Olaf Hartong
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished to do
+ * so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */