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Author SHA1 Message Date
Mika Ayenson, PhD 44f69a586b [Rule Tuning] Add Supplemental Mitre Mappings (#5876) 
---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
Co-authored-by: Isai <59296946+imays11@users.noreply.github.com>
Co-authored-by: terrancedejesus <terrance.dejesus@elastic.co>
Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
Co-authored-by: eric-forte-elastic <eric.forte@elastic.co>

Removed changes from:
- rules/cross-platform/command_and_control_kubectl_networking_modification.toml
- rules/cross-platform/defense_evasion_potential_kubectl_impersonation.toml
- rules/cross-platform/defense_evasion_potential_kubectl_masquerading.toml
- rules/cross-platform/discovery_kubectl_permission_discovery.toml
- rules/cross-platform/execution_d4c_k8s_mda_direct_interactive_kubernetes_api_request_by_usual_utilities.toml
- rules/cross-platform/execution_d4c_k8s_mda_forbidden_direct_interactive_kubernetes_api_request.toml
- rules/cross-platform/execution_d4c_k8s_mda_kubernetes_api_activity_by_unusual_utilities.toml
- rules/cross-platform/execution_d4c_k8s_mda_service_account_token_access_followed_by_kubernetes_api_request.toml
- rules/cross-platform/execution_kubernetes_direct_api_request_via_curl_or_wget.toml
- rules/integrations/azure/ml_azure_rare_method_by_city.toml
- rules/integrations/azure/ml_azure_rare_method_by_country.toml
- rules/integrations/azure/ml_azure_rare_method_by_user.toml
- rules/integrations/cloud_defend/command_and_control_curl_socks_proxy_detected_inside_container.toml
- rules/integrations/cloud_defend/command_and_control_interactive_file_download_from_internet.toml
- rules/integrations/cloud_defend/command_and_control_tunneling_and_port_forwarding.toml
- rules/integrations/cloud_defend/credential_access_cloud_creds_search_inside_a_container.toml
- rules/integrations/cloud_defend/credential_access_collection_sensitive_files_compression_inside_a_container.toml
- rules/integrations/cloud_defend/credential_access_sensitive_keys_or_passwords_search_inside_a_container.toml
- rules/integrations/cloud_defend/credential_access_service_account_token_or_cert_read.toml
- rules/integrations/cloud_defend/defense_evasion_decoded_payload_piped_to_interpreter.toml
- rules/integrations/cloud_defend/defense_evasion_file_creation_execution_deletion_cradle.toml
- rules/integrations/cloud_defend/defense_evasion_interactive_process_execution_from_suspicious_directory.toml
- rules/integrations/cloud_defend/defense_evasion_ld_preload_shared_object_modified_inside_a_container.toml
- rules/integrations/cloud_defend/defense_evasion_potential_evasion_via_encoded_payload.toml
- rules/integrations/cloud_defend/discovery_dns_enumeration.toml
- rules/integrations/cloud_defend/discovery_environment_enumeration.toml
- rules/integrations/cloud_defend/discovery_kubelet_certificate_file_access.toml
- rules/integrations/cloud_defend/discovery_kubelet_pod_discovery_via_builtin_utilities.toml
- rules/integrations/cloud_defend/discovery_privilege_boundary_enumeration_from_interactive_process.toml
- rules/integrations/cloud_defend/discovery_service_account_namespace_read.toml
- rules/integrations/cloud_defend/discovery_suspicious_network_tool_launched_inside_a_container.toml
- rules/integrations/cloud_defend/execution_container_management_binary_launched_inside_a_container.toml
- rules/integrations/cloud_defend/execution_direct_interactive_kubernetes_api_request.toml
- rules/integrations/cloud_defend/execution_interactive_file_creation_in_system_binary_locations.toml
- rules/integrations/cloud_defend/execution_kubeletctl_execution.toml
- rules/integrations/cloud_defend/execution_netcat_listener_established_inside_a_container.toml
- rules/integrations/cloud_defend/execution_payload_downloaded_and_piped_to_shell.toml
- rules/integrations/cloud_defend/execution_potential_direct_kubelet_access_via_process_args.toml
- rules/integrations/cloud_defend/execution_suspicious_file_made_executable_via_chmod_inside_a_container.toml
- rules/integrations/cloud_defend/execution_suspicious_interactive_interpreter_command_execution.toml
- rules/integrations/cloud_defend/execution_tool_installation.toml
- rules/integrations/cloud_defend/persistence_modification_of_persistence_relevant_files.toml
- rules/integrations/cloud_defend/persistence_ssh_authorized_keys_modification_inside_a_container.toml
- rules/integrations/cloud_defend/persistence_suspicious_echo_or_printf_execution.toml
- rules/integrations/cloud_defend/persistence_suspicious_webserver_child_process_execution.toml
- rules/integrations/cloud_defend/privilege_escalation_debugfs_launched_inside_a_privileged_container.toml
- rules/integrations/cloud_defend/privilege_escalation_potential_container_escape_via_modified_release_agent_file.toml
- rules/integrations/gcp/ml_gcp_rare_method_by_city.toml
- rules/integrations/gcp/ml_gcp_rare_method_by_country.toml
- rules/integrations/gcp/ml_gcp_rare_method_by_user.toml
- rules/linux/discovery_docker_socket_discovery.toml
- rules/linux/discovery_kubeconfig_file_discovery.toml
- rules/linux/execution_kubectl_apply_pod_from_url.toml
- rules/linux/lateral_movement_kubeconfig_file_activity.toml
- rules/linux/persistence_kubernetes_sensitive_file_activity.toml
- rules_building_block/discovery_kubectl_workload_and_cluster_discovery.toml

(selectively cherry picked from commit 8993d1450b)
 2026-04-01 14:15:58 +00:00
Samirbous d992178a3f [Tuning] Top Noisy Rules (#5449) 
* [Tuning] Windows BruteForce Rules Tuning

#1 Multiple Logon Failure from the same Source Address: converted to ES|QL and raised the threshold to 100 failed auths, alert quality should be better since it aggregates all failed auths info into one alert vs multiple EQL matches. (expected reduction more than 50%)

#2 Privileged Account Brute Force - coverted to ESQL and set the threshold to 50 in a minute. this should drop noise volume by more than 50%.

* ++

* Update execution_shell_evasion_linux_binary.toml

* Update execution_shell_evasion_linux_binary.toml

* Update defense_evasion_indirect_exec_forfiles.toml

* Update lateral_movement_remote_file_copy_hidden_share.toml

* Update lateral_movement_remote_file_copy_hidden_share.toml

* Update persistence_service_windows_service_winlog.toml

* Update credential_access_lsass_openprocess_api.toml

* Update persistence_suspicious_scheduled_task_runtime.toml

* Update impact_hosts_file_modified.toml

* Update defense_evasion_process_termination_followed_by_deletion.toml

* Update rules/windows/credential_access_lsass_openprocess_api.toml

* Update rules/windows/credential_access_bruteforce_admin_account.toml

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>

* Update rules/windows/credential_access_lsass_openprocess_api.toml

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>

* Update rules/windows/credential_access_bruteforce_multiple_logon_failure_same_srcip.toml

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>

* Update credential_access_lsass_openprocess_api.toml

* Update impact_hosts_file_modified.toml

* Update credential_access_dollar_account_relay.toml

* Update credential_access_new_terms_secretsmanager_getsecretvalue.toml

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>

(cherry picked from commit 3726611b93)
 2025-12-12 14:32:08 +00:00
Jonhnathan 0268daa17d [Rule Tuning] Tighten Up Elastic Defend Indexes - Linux (#4446) 2025-02-05 15:25:45 -03:00
Mika Ayenson fe8c81d762 [FR] Generate investigation guides (#4358) 2025-01-22 11:17:38 -06:00
Mika Ayenson b80d8342d6 [Docs | Rule Tuning] Add blog references to rules (#4097) 
* [Docs | Rule Tuning] Add blog references to rules

* Apply suggestions from code review

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>

* Apply suggestions from code review

* Update google_workspace blog references

* add okta blog references

* Update dates

---------

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
 2024-09-25 15:19:20 -05:00
shashank-elastic 63e91c2f12 Back-porting Version Trimming (#3704) 2024-05-23 00:45:10 +05:30
Mika Ayenson 2c3dbfc039 Revert "Back-porting Version Trimming (#3681)" 
This reverts commit 71d2c59b5c.
 2024-05-22 13:51:46 -05:00
shashank-elastic 71d2c59b5c Back-porting Version Trimming (#3681) 2024-05-23 00:11:50 +05:30
Jonhnathan 458e67918a [Security Content] Small tweaks on the setup guides (#3308) 
* [Security Content] Small tweaks on the setup guides

* Additional Fixes

* Avoid touching deprecated rules
 2024-03-11 09:09:40 -03:00
shashank-elastic d52546eee5 Enhance Setup Guide information (#3256) 2023-11-03 19:05:29 +05:30
Ruben Groenewoud 020fff3aea [Rule Tuning] Linux Rules (#3092) 
* [Rule Tuning] [WIP] Linux DR

* Update defense_evasion_binary_copied_to_suspicious_directory.toml

* Fixed tag

* Added additional tuning

* unit test fix

* Additional tuning

* tuning

* added max signals

* Added max_signals=1 to brute force rules

* Cross-Platform Tuning

* Small fix

* new_terms conversion

* typo

* new_terms conversion

* Ransomware rule tuning

* performance tuning

* new_terms conversion for auditd_manager

* tune

* Need coffee

* kql/eql stuff

* formatting improvement

* new_terms sudo hijacking conversion

* exclusion

* Deprecations that were added last tuning

* Deprecations that were added last tuning

* Increased max timespan for brute force rules

* version bump

* added domain tag

* Two tunings

* More tuning

* Additional tuning

* updated_date bump

* query optimization

* Tuning

* Readded the exclusions for this one

* Changed int comparison

* Some tunings

* Update persistence_systemd_scheduled_timer_created.toml

* Update rules/linux/privilege_escalation_ld_preload_shared_object_modif.toml

Co-authored-by: Isai <59296946+imays11@users.noreply.github.com>

* [New Rule] Potential curl CVE-2023-38545 Exploitation

* Revert "[New Rule] Potential curl CVE-2023-38545 Exploitation"

This reverts commit 9c04d1b53d.

* Update rules/cross-platform/command_and_control_non_standard_ssh_port.toml

* Update rules/linux/command_and_control_cat_network_activity.toml

* Update persistence_message_of_the_day_execution.toml

* Changed max_signals

* Revert "Merge branch 'main' into rule-tuning-ongoing-dr"

This reverts commit 1106b5d2eb, reversing
changes made to 5ff510757f.

* Revertable merge

* Update defense_evasion_ld_preload_env_variable_process_injection.toml

* File name change

---------

Co-authored-by: Isai <59296946+imays11@users.noreply.github.com>
Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
 2023-10-23 16:28:58 +02:00
shashank-elastic 7254c582c5 Move Setup information into setup filed (#3206) 2023-10-23 19:28:18 +05:30
shashank-elastic 15718ea09e Improve exsisting setup configurations for Linux (#3141) 2023-10-13 13:39:03 +05:30
Jonhnathan 4233fef238 [Security Content] Include "Data Source: Elastic Defend" tag (#3002) 
* win folder

* Other folders

* Update test_all_rules.py

* .

* updated missing elastic defend tags

---------

Co-authored-by: terrancedejesus <terrance.dejesus@elastic.co>
 2023-09-05 14:22:01 -04:00
Ruben Groenewoud 6115a68aba [Rule Tuning] Small Linux DR Tuning (#3074) 
* [Rule tuning] Adressing community issue

* Changed title

* Changed IG title
 2023-09-05 14:20:57 +02:00
Ruben Groenewoud 4cbfd7c4ae [Rule Tuning] Restricted Shell Breakout (#2999) 2023-08-04 19:30:18 +02:00
shashank-elastic 3ed8c56942 DR Linux Rule Tuning 8.9 (#2859) 
Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
 2023-07-10 20:02:42 +05:30
Jonhnathan b4c84e8a40 [Security Content] Tags Reform (#2725) 
* Update Tags

* Bump updated date separately to be easy to revert if needed

* Update resource_development_ml_linux_anomalous_compiler_activity.toml

* Apply changes from the discussion

* Update persistence_init_d_file_creation.toml

* Update defense_evasion_timestomp_sysmon.toml

* Update defense_evasion_application_removed_from_blocklist_in_google_workspace.toml

* Update missing Tactic tags

* Update unit tests to match new tags

* Add missing IG tags

* Delete okta_threat_detected_by_okta_threatinsight.toml

* Update command_and_control_google_drive_malicious_file_download.toml

* Update persistence_rc_script_creation.toml

* Mass bump

* Update persistence_shell_activity_by_web_server.toml

* .

---------

Co-authored-by: Mika Ayenson <Mika.ayenson@elastic.co>
Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
 2023-06-22 18:38:56 -03:00
shashank-elastic 2705df81e2 Tune Shell evasion Rule to incorporate GTFOArgs shell evasion (#2687) 2023-04-20 18:35:18 +05:30
Justin Ibarra 59da2da474 [Rule Tuning] Ensure host information is in endpoint rule queries (#2593) 
* add unit tests to ensure host type and platform are included
* add host.os.name 'linux' to all linux rules
* add host.os.name macos to mac rules
* add host.os.name to windows rules; fix linux dates
* update from host.os.name to host.os.type

Co-authored-by: brokensound77 <brokensound77@users.noreply.github.com>
Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
 2023-03-05 11:41:19 -07:00
Jonhnathan 8e02c60ef6 [Rule Tuning] Enclose Rule Conditions within Parenthesis (#2486) 2023-01-31 16:56:19 -03:00
Jonhnathan 77c8665f11 [Rule Tuning] Add endgame support for Linux Rules (#2436) 
* [Rule Tuning] Add endgame support for Linux Rules

* [Rule Tuning] Add endgame support for Linux Rules

* .

* Update persistence_insmod_kernel_module_load.toml
 2023-01-23 20:53:15 -03:00
Jonhnathan 9981cca275 [Security Content] Investigation Guides Line breaks refactor (#2454) 
* [Security Content] Investigation Guides Line breaks refactor (#2412)

* [Security Content] Investigation Guides Line break refactor

* undo updated_date bump on deprecated rules

* Remove duplicated key

* Remove changes to deprecated rules

* Update command_and_control_certutil_network_connection.toml
 2023-01-09 13:28:10 -03:00
Terrance DeJesus b1a689b6fd Revert "[Security Content] Investigation Guides Line breaks refactor (#2412)" (#2453) 
This reverts commit d1481e1a88.
 2023-01-09 10:44:54 -05:00
Jonhnathan d1481e1a88 [Security Content] Investigation Guides Line breaks refactor (#2412) 
* [Security Content] Investigation Guides Line break refactor

* undo updated_date bump on deprecated rules

* Remove duplicated key
 2023-01-09 11:56:39 -03:00
Terrance DeJesus 4312d8c958 [FR] Add Endpoint, APM and Windows Integration Tags to Rules and Supportability (#2429) 
* initial commit

* addressing flake errors

* added apm to _get_packagted_integrations logic

* addressed flake errors

* adjusted integration schema and updated rules to be a list

* updated several rules and removed a unit test

* updated rules with logs-* only index patterns

* Update tests/test_all_rules.py

Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>

* addressed flake errors

* integration is none is windows, endpoint or apm

* adding rules with accepted incoming changes from main

* fixed tag and tactic alignment errors from unit testing

* adjusted unit testing logic for integration tags; added more exclusion rules

* adjusted test_integration logic to be rule resistent and skip if -8.3

* adjusted comments for unit test skip

* fixed merge conflicts from main

* changing test_integration_tag to remove logic for rule version comparisons

* added integration tag to new rule

* adjusted rules updated_date value

* ignore guided onboarding rule in unit tests

* added integration tag to new rule

Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
 2023-01-04 09:30:07 -05:00
Justin Ibarra 46d5e37b76 min_stack all rules to 8.3 (#2259) 
* min_stack all rules to 8.3

* bump date

Co-authored-by: Mika Ayenson <mika.ayenson@elastic.co>
 2022-08-24 10:38:49 -06:00
shashank-elastic 19d9a7eb87 Rule tuning as part of Linux Detection Rules Review (#2210) 2022-08-02 17:46:57 +05:30
shashank-elastic 8afded11e7 Rule tuning as part of Linux Detection Rules Review (#2170) 2022-07-29 21:55:49 +05:30
Mika Ayenson a52751494e 2058 add setup field to metadata (#2061) 
* Convert config header to setup in note field
* Parse note field into separate setup and note field with marko gfm
* only validate and parse note on elastic authored rules and add CLI description for new DR_BYPASS_NOTE_VALIDATION_AND_PARSE environment variable

Co-authored-by: brokensound77 <brokensound77@users.noreply.github.com>
 2022-07-18 15:41:32 -04:00
shashank-elastic 98a85ddcee Linux binary(s) ftp shell evasion threat (#2007) 
Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2022-06-01 22:07:52 +05:30
shashank-elastic fd7a6d63b0 [Rule tuning] Linux binary(s) shell evasion threat 
* Linux binary(s) git shell evasion threat
 2022-05-25 19:21:08 +05:30
shashank-elastic 51b2d9da4b [Rule tuning] Linux binary(s) shell evasion threat (#1957) 
* Linux binary(s) shell evasion threat

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2022-05-25 08:32:53 +05:30