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Author SHA1 Message Date
Mika Ayenson dfef597794 [Rule Tuning] Suspicious Child Process of Adobe Acrobat Reader Update Service (#2192) 2022-08-23 10:10:40 -04:00
Mika Ayenson 2204459e73 [Rule Tuning] Finder Sync Plugin Registered and Enabled (#2172) 2022-08-23 09:59:43 -04:00
Mika Ayenson 2326b30a87 [Rule Tuning] Suspicious Browser Child Process (#2138) 2022-08-23 09:56:23 -04:00
Jonhnathan c5ff8511a9 [Rule Tuning] Abnormal Process ID or Lock File Created (#2113) 
* [Rule Tuning] Abnormal Process ID or Lock File Created

* Update rules/linux/execution_abnormal_process_id_file_created.toml

* Update execution_abnormal_process_id_file_created.toml

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2022-08-23 09:59:31 -03:00
Jonhnathan 6631c4927d [Rule Tuning] Microsoft 365 Inbox Forwarding Rule Created (#2240) 
Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2022-08-23 09:43:09 -03:00
Jonhnathan 6e2d20362a [Rule Tuning] Standardizing Risk Score according to Severity (#2242) 2022-08-21 22:29:39 -03:00
Mika Ayenson fbfe1e3530 set typing-inspect requirement to 0.7.1 (#2248) 2022-08-17 22:17:16 -04:00
Samirbous d3420e3386 [Deprecate Rule] Suspicious Process from Conhost (#2222) 
only FPs with no way to tune other than opening the rule for easy evasion by excluding by process.executable/args).

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2022-08-16 16:32:24 +02:00
Samirbous 8e0ae64a04 [Rule Tuning] Whoami Process Activity (#2224) 
* added Whoami Process Activity

* Update discovery_whoami_command_activity.toml

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2022-08-16 16:26:10 +02:00
Samirbous 0f7b29918c [Rule Tuning] Suspicious Execution via Scheduled Task (#2235) 
Excluding`?:\\ProgramData` and few other noisy FP pattern by process.args + name to reduce users alert fatigue.
 2022-08-15 21:50:23 +02:00
Samirbous b89d6185b2 [Rule Tuning] Reduce FPs (#2223) 
9 rules tuned to exclude common noisy FP patterns.

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2022-08-15 09:15:48 -05:00
github-actions[bot] cb2ca45d56 Locked versions for releases: 7.16,8.0,8.1,8.2,8.3,8.4 (#2236) 
Co-authored-by: terrancedejesus <terrancedejesus@users.noreply.github.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2022-08-10 09:18:59 -04:00
Mika Ayenson e7a1afbba0 only run on pull request (#2237) 2022-08-09 21:21:30 -04:00
Terrance DeJesus 2a3b584433 Prep for 8.5 branch (#2220) 
* adding first commit

* renamed branch

* adjusted packages, stack schema and updated schemas

* updated integrations manifest

* adjusted comments to be a little more organized

* adjusted stack-schema-map

* refreshed ecs and beats schema, adjusted stack schema map accordingly
 2022-08-09 17:14:42 -04:00
Jonhnathan fc7a384d19 [Security Content] 8.4 - Add Investigation Guides - Windows - 2 (#2144) 
* [Security Content] 8.4 - Add Investigation Guides - Windows - 2

* update date

* Apply suggestions from review

* Apply suggestions from code review

Co-authored-by: Joe Peeples <joe.peeples@elastic.co>

Co-authored-by: Joe Peeples <joe.peeples@elastic.co>
Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
 2022-08-08 21:34:05 -03:00
Mika Ayenson 89cdae87c5 only add related_integration if on the correct stack (#2234) 2022-08-08 18:41:56 -04:00
Mika Ayenson 7d973a3b07 add new field related_integrations to the post build (#2060) 
* add new field `related_integrations` to the post build

* add exception for endpoint `integration`

* Skip rules without related integrations

* lint

* refactor related_integrations to TOMLRuleContents class

* update to reflect required_fields updates

* add todo

* add new line for linting

* related_integrations updates, get_packaged_integrations returns list of dictionaries, started work on integrations py

* build_integrations_manifest command completed

* initial test completed for post-building related_integrations

* removed get_integration_manifest method from rule, removed global integrations path

* moved integration related methods to integrations.py and fixed flake issues

* adjustments for PipedQuery from eql sequence rules and packages with no integration

* adjusted github client import for integrations.py

* Update detection_rules/devtools.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update detection_rules/devtools.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* added integration manifest schema, made adjustments

* Update detection_rules/integrations.py

* Update detection_rules/rule.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update detection_rules/rule.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update detection_rules/integrations.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update detection_rules/integrations.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update detection_rules/integrations.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update detection_rules/rule.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* removed get_integrations_package to consolidate code

* removed type list return

* adjusted import flake errors

* Update detection_rules/integrations.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update detection_rules/integrations.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* adjusted indentation error

* adjusted rule.get_packaged_integrations to account for kql.ast.OrExpr if event.dataset is not set

* Update detection_rules/devtools.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update detection_rules/devtools.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update detection_rules/integrations.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update detection_rules/integrations.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* adjusted find_least_compatible_version in integrations.py

* Update detection_rules/integrations.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* fixed flake issues

* adjusted get_packaged_integrations

* iterate the ast for literal event.dataset values

* Update detection_rules/integrations.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update detection_rules/integrations.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update detection_rules/integrations.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update detection_rules/integrations.py

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* made small adjustments to address errors during build manifests command

* addressing integrations.find_least_compatible method to return None instead of raise error only

* Update detection_rules/integrations.py

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

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
Co-authored-by: Terrance DeJesus <terrance.dejesus@elastic.co>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2022-08-08 13:44:36 -04:00
Mika Ayenson d1bc53e295 [Rule Tuning] Persistence via Folder Action Script (#2174) 
* Exclude FPs for iterm
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
 2022-08-05 14:36:05 -04:00
Mika Ayenson 4f55e9b05f [Rule Tuning] Potential Persistence via Login Hook (#2177) 
* Exclude FPs for iMazing Profile Editor and backupd
 2022-08-05 14:25:31 -04:00
Mika Ayenson 058f11f650 [Rule Tuning] Sublime Plugin or Application Script Modification (#2180) 
* expand filter to sublime text contents

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
 2022-08-05 14:15:28 -04:00
TotalKnob b043695833 Remove ambiguity from impact_modification_of_boot_config.toml (#2199) 
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
 2022-08-05 10:38:41 -03:00
Mika Ayenson 73584407d7 [Bug] Opening Issues in this Repo Causes "Run failed: Community - main" (#2214) 
* use ghv6 and catch errors
 2022-08-03 14:36:08 -04:00
Terrance DeJesus a76c51ae17 [Deprecation rule] DNS Activity to the Internet (#2221) 2022-08-02 20:59:35 -05:00
Mika Ayenson ecd10b672a [Rule Tuning] Execution with Explicit Credentials via Scripting (#2190) 
* add case sensitive Python process name and T1548
 2022-08-02 14:21:00 -04:00
Mika Ayenson d8e0c0fee3 [Rule Tuning] Suspicious Calendar File Modification (#2187) 
* exclude fps for Mail.app
 2022-08-02 14:06:57 -04:00
Samirbous 50bb821708 [Rules Tuning] Add support for Sysmon ImageLoad Events (#2215) 
* [Rules Tuning] Add support for Sysmon ImageLoad Events

added correct event.category and event.action to rules using library events to support sysmon eventid 7.

`event.category == "library"` --> `(event.category == "process" and event.action : "Image loaded*")`

`dll.name` --> `file.name`

* added Suspicious RDP ActiveX Client Loaded

* Delete workspace.xml
 2022-08-02 18:40:26 +02:00
Samirbous b15f0de9a4 [Rules Tuning] Diverse Windows Rules - FPs reduction (#2213) 
* [Rules Tuning] 7 diverse Windows rules

Excluding FP patterns while avoiding breaking compat with winlogbeat and 4688 events lack of codesign metadata.

* Update initial_access_suspicious_ms_exchange_process.toml

* Update privilege_escalation_persistence_phantom_dll.toml

* Update execution_psexec_lateral_movement_command.toml

* Update persistence_remote_password_reset.toml

* Update non-ecs-schema.json

* Update persistence_remote_password_reset.toml

* Update non-ecs-schema.json

* Update discovery_privileged_localgroup_membership.toml
 2022-08-02 18:37:07 +02:00
Samirbous a046dc0d29 [Deprecate rule] Whitespace Padding in Process Command Line (#2218) 
very noisy and will require frequent tuning with very low TP rate.
 2022-08-02 18:30:57 +02:00
Samirbous e5ee8e024f [Deprecate Rule] File and Directory Discovery (#2217) 
* [Deprecate Rule] File and Directory Discovery

very noisy and most if not all are FPs, few rooms for tuning without rendering the rule easy to bypass.

* Delete workspace.xml
 2022-08-02 17:57:28 +02:00
shashank-elastic 19d9a7eb87 Rule tuning as part of Linux Detection Rules Review (#2210) 2022-08-02 17:46:57 +05:30
Samirbous 04dcf09c03 [Rule Tuning] Suspicious Process Creation CallTrace (#2207) 
Excluding some FPs by process.parent.executable and process.parent.args.
 2022-08-01 19:00:13 +02:00
Samirbous 1f21c5c57f [Rule Tuning] Unusual Service Host Child Process - Childless Service (#2208) 
Excluding some noisy unique processes.
 2022-08-01 18:40:45 +02:00
Samirbous 8d34416049 [Deprecated Rule] Potential Privilege Escalation via Local Kerberos R… (#2209) 
* [Deprecated Rule] Potential Privilege Escalation via Local Kerberos Relay over LDAP

FPs in certain cases with no room for tuning.

* Update privilege_escalation_krbrelayup_suspicious_logon.toml

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2022-08-01 18:28:26 +02:00
Samirbous a22fef8723 [Rule Tuning] Suspicious Process Access via Direct System Call (#2204) 
Excluding some FPs by calltrace.
 2022-08-01 18:16:08 +02:00
Samirbous 6f69695820 [Rule Tuning] Remotely Started Services via RPC (#2211) 
* [Rule Tuning] Remotely Started Services via RPC

excluding noisy FPs by process.executable to be compatible with winlog and endpoint

* Update lateral_movement_remote_services.toml

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2022-08-01 18:11:11 +02:00
Samirbous 91896db453 [Rule Tuning] Process Termination followed by Deletion (#2206) 
Excluded some FPs by process.executable and file.path.
 2022-08-01 18:01:31 +02:00
Samirbous 049fbf7979 [Rule Tuning] Potential Remote Credential Access via Registry (#2203) 
* [Rule Tuning] Potential Remote Credential Access via Registry

Excluding some noisy FPs by file.path (user and machine hives std paths) and event.action (scoped to logged-in)

* Update credential_access_remote_sam_secretsdump.toml
 2022-08-01 17:49:39 +02:00
Samirbous 527507835f [Rule Tuning] Kerberos Traffic from Unusual Process (#2202) 
Excluding couple of FPs by process.executables to reduce FPs rate.
 2022-07-29 22:27:59 +02:00
Isai 386a8202c0 [Rule Tuning] Persistence via Update Orchestrator Service Hijack (#2195) 
* [Rule Tuning] Persistence via Update Orchestrator Service Hijack

I changed the query to exclude FPs for safe executables found in telemetry: MoUsoCoreWorker.exe and OfficeC2RClient.exe. Changed the query type to KQL to account for the wildcard needed to capture 2 of the executable paths found in telemetry. I'm open to changing back to eql with suggestions.

* Update persistence_via_update_orchestrator_service_hijack.toml

revert back to eql

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2022-07-29 16:11:16 -04:00
Samirbous 6d61a68c29 [Rule Tuning] Modification of WDigest Security Provider (#2201) 
excluding svchost.exe running as system (main src of FPs for this use case).
 2022-07-29 19:45:33 +02:00
shashank-elastic b2b5c170dd Rule(s) to identify potential mining activities (#2185) 2022-07-29 23:00:18 +05:30
shashank-elastic 8afded11e7 Rule tuning as part of Linux Detection Rules Review (#2170) 2022-07-29 21:55:49 +05:30
Colson Wilhoit 998afcf9c4 [Rule Tuning] MacOS Installer Package Net Event (#2193) 
* [Rule Tuning] MacOS Installer Package Net Event

* Update rules/macos/execution_installer_package_spawned_network_event.toml

* Update rules/macos/execution_installer_package_spawned_network_event.toml

* Update execution_installer_package_spawned_network_event.toml

just deleting a typo

Co-authored-by: Isai <59296946+imays11@users.noreply.github.com>
 2022-07-28 15:16:10 -05:00
Isai 026a822840 [New Rule] Kubernetes Suspicious Self-Subject Review (#2067) 
* Create discovery_suspicious_self_subject_review.toml

Adding new rule

* non-ecs-schema fields added and query change to specify fields

added non ecs-schema fields for all coming k8s rules and added specific fields to the query instead of using regex

* Update discovery_suspicious_self_subject_review.toml

* Update rules/integrations/kubernetes/discovery_suspicious_self_subject_review.toml

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2022-07-28 15:30:47 -04:00
Isai 3d88dc2cf5 [New Rule] Kubernetes Privileged Pod Created (#2070) 
* new rule privileged pod created

created toml for new rule and added to the non-ecs-schema with all fields

* Update rules/integrations/kubernetes/privilege_escalation_privileged_pod_created.toml

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update rules/integrations/kubernetes/privilege_escalation_privileged_pod_created.toml

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

* Update rules/integrations/kubernetes/privilege_escalation_privileged_pod_created.toml

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2022-07-28 15:19:15 -04:00
Isai 80734b3f21 [New Rule] Kubernetes Pod Created With HostPID (#2071) 
* [New Rule] Kubernetes Pod Created With HostPID

new rule toml for pod created with hostPID and updated non-ecs-schema with all k8s fields

* Update privilege_escalation_pod_created_with_hostpid.toml

* Update rules/integrations/kubernetes/privilege_escalation_pod_created_with_hostpid.toml

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2022-07-28 14:51:17 -04:00
Isai ecba0fc489 [New Rule] Kubernetes Pod Created With HostNetwork (#2072) 
* [New Rule] Kubernetes Pod Created With HostNetwork

new rule toml for pod created with hostNetwork and added all k8s fields to non-ecs-schema json

* Update privilege_escalation_pod_created_with_hostnetwork.toml

* Update rules/integrations/kubernetes/privilege_escalation_pod_created_with_hostnetwork.toml

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2022-07-28 13:57:43 -04:00
Isai f516241f1f [New Rule] Kubernetes Pod Created With HostIPC (#2074) 
* [New Rule] Kubernetes Pod Created With HostIPC

new rule toml file for pod created with hostIPC and k8s fields added to non-ecs-schema json

* Rename privilege_escalation_pod_created_with_hostIPC.toml to privilege_escalation_pod_created_with_hostipc.toml

* Update rules/integrations/kubernetes/privilege_escalation_pod_created_with_hostipc.toml

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2022-07-28 13:43:58 -04:00
Isai 97f3a8cad2 [New Rule] Kubernetes Exposed Service Created With Type NodePort (#2075) 
* [New Rule] Kubernetes Exposed Service Created With Type NodePort

new rule toml for exposed service created with type nodeport and added all k8s fields to non-ecs-schema

* Update rules/integrations/kubernetes/persistence_exposed_service_created_with_type_nodeport.toml

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2022-07-28 13:18:56 -04:00
Isai c1486407aa [New Rule] Kubernetes Pod Created with Sensitive hostPath Volume (#2094) 
* [New Rule] Kubernetes Pod Created with Sensitive hostPath Volume

created new rule toml and updated non-ecs-schema with k8s fields

* Update rules/integrations/kubernetes/privilege_escalation_pod_created_with_sensitive_hospath_volume.toml

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2022-07-28 13:09:26 -04:00