security-tools/sigma-rules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
1,198 Commits 1 Branch 0 Tags
8c19e9ff6c0f29bfd0930c4d511eaf93127effef
Commit Graph

1198 Commits

This Branch
This Branch
All Branches
Author SHA1 Message Date
Terrance DeJesus 8c19e9ff6c [New Rule] Bitlocker Settings Disabled - Google Workspace (#2288) 
* adding new rule

* adjusted UUID
 2022-09-12 16:06:01 -04:00
Mika Ayenson 0358ec9d9a Release ER Production RTAs to DR (#2270) 2022-09-08 12:50:39 -04:00
Justin Ibarra 332ea40100 Cleanup rule survey code (#1923) 
* Cleanup rule survey code

* default to only unique-ing on process name for lucene rules

* fix bug in kibana url parsing by removing redundant port from domain

* update search-alerts columns and nest fields

* fix rule.contents.data.index

Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
 2022-09-06 15:53:47 -06:00
Justin Ibarra 0fc8006e7a Update RTA common.py for py3 (#2287) 
* add run-all argument and initial p2 conversion

* remove unicode

* format with black
 2022-09-01 09:16:39 -06:00
TotalKnob 3ba777c1b1 [Rule Tuning] Disable Windows Firewall Rules via Netsh (#2231) 
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
 2022-08-26 13:10:08 -04:00
Terrance DeJesus 6a6ef0ce11 [New Rule] Restrictions for Google Marketplace Modified to Allow Any App - Google Workspace (#2268) 
* adding new rule

* adjusted UUID to address unit testing failures

* adjusted UUID to address unit testing failures

* adjusted references
 2022-08-26 12:43:30 -04:00
Terrance DeJesus bd6befb168 [New Rule] Google Drive Ownership Transferred (#2265) 
* adding new rule

* adjusted query format

* adjusted file and rule name to include google workspace

* Update collection_google_drive_ownership_transferred_via_google_workspace.toml

Fixed a couple minor typos

Co-authored-by: Isai <59296946+imays11@users.noreply.github.com>
 2022-08-26 12:41:10 -04:00
Terrance DeJesus 18df50443c [Rule Tuning] Admin Role Assigned to User - Google Workspace (#2266) 
* tuning rule query and att&ck mappings

* adjusted description and query formatting

* Update rules/integrations/google_workspace/persistence_google_workspace_admin_role_assigned_to_user.toml

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>

* adjusted risk and severity

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
 2022-08-26 12:35:44 -04:00
Terrance DeJesus cd2539f1eb [New Rule] User Group Access Modified to Allow External Access (#2264) 
* adding new rule

* adjusting rule name, file name and description

* adjusted att&ck technique

* adjusted file and rule name to include google workspace

* adjusted references

* Update persistence_google_workspace_user_group_access_modified_to_allow_external_access.toml

Fixed minor typo

Co-authored-by: Isai <59296946+imays11@users.noreply.github.com>
 2022-08-26 12:25:29 -04:00
Terrance DeJesus c0a339e277 [New Rule] 2SV Policy Disabled - Google Workspace (#2271) 
* adding new rule

* adjusted file name, query and rule name
 2022-08-26 12:22:54 -04:00
Terrance DeJesus e5399bc148 [New Rule] Application Removed from Blocklist - Google Workspace (#2267) 
* adding new rule

* Update rules/integrations/google_workspace/defense_evasion_application_removed_from_blocklist_in_google_workspace.toml

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
 2022-08-26 12:16:41 -04:00
TotalKnob 97e42d01d8 [Rule Tuning] SUNBURST Command and Control Activity (#2232) 
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
 2022-08-26 13:11:22 -03:00
Justin Ibarra d37eac8d9d Add test that newly introduced build-time fields for a min_stack for … (#2262) 
* add test that newly introduced build-time fields for a min_stack for applicable rules.

* account for rules without min_stack_version

* limit test to >= stack ver
 2022-08-25 21:56:16 -06:00
Jonhnathan b19a02470b Add TestRiskScoreMismatch (#2254) 2022-08-25 14:29:46 -03:00
Terrance DeJesus 5a04aaf671 [Bug] Integrations-Pr Command (Elastic-Package Linting and Version Adjustments) (#2054) 
* started solution for integrations-pr bug

* Update devtools.py

* Update detection_rules/devtools.py

* Update detection_rules/devtools.py

Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
 2022-08-24 14:01:30 -04:00
github-actions[bot] 6ff7d2284d Lock versions for releases: 7.16,8.0,8.1,8.2,8.3,8.4 (#2261) 
* Locked versions for releases: 7.16,8.0,8.1,8.2,8.3,8.4

* adjusting version lock file to increase current version by 100

Co-authored-by: terrancedejesus <terrancedejesus@users.noreply.github.com>
Co-authored-by: Terrance DeJesus <terrance.dejesus@elastic.co>
 2022-08-24 13:26:35 -04:00
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
TotalKnob 023fbc7bbd [Rule Tuning] Clearing Windows Event Logs (#2233) 
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2022-08-23 21:41:30 -03:00
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