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Author SHA1 Message Date
Stijn Holzhauer 2ed97d2e8c [Rule Tuning] Adding event.provider to AWS WAF Rule or Rule Group Deletion (#1833) 
* Adding event.provider

* Removing new line

* Updating updated_date field

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
 2022-03-22 20:36:53 -03:00
shashank-elastic 22367d3702 crash shell evasion threat (#1861) 2022-03-22 18:46:05 +05:30
shashank-elastic 2ab5a1f44a [New Rule] cpulimit shell evasion threat (#1851) 
* cpulimit shell evasion threat

* Update rules/linux/execution_cpulimit_binary.toml

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

* Update rules/linux/execution_cpulimit_binary.toml

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

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
 2022-03-21 12:16:53 -05:00
Terrance DeJesus 096723b2a1 [Rule Tuning] Symbolic Link to Shadow Copy Created (#1830) 
* fixed duplicated file name

* deprecated Symbolic Link to Shadow Copy Created as it may be prone to FP and the intrusion steps are covered with NTDS or SAM Database File Copied

* moved rule back to production, added investigation notes and sequencing to EQL query

* added related rule 3bc6deaa-fbd4-433a-ae21-3e892f95624f to investigation notes

* updating with minor changes

* adjusted related rules

* adjusted investigation notes

* Update rules/windows/credential_access_symbolic_link_to_shadow_copy_created.toml

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

* Update rules/windows/credential_access_symbolic_link_to_shadow_copy_created.toml

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

* Update rules/windows/credential_access_symbolic_link_to_shadow_copy_created.toml

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

* TOML linted and adjusted updated date

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
 2022-03-18 11:08:29 -04:00
Mika Ayenson 84b7ce6582 update beats master branch ref to main (#1853) 
* update beats master branch ref to main

* update filename of master beat schema to main

* delete old main beats schema

* rebuilt main beats archive
 2022-03-18 10:06:34 -04:00
shashank-elastic 7feebc2c10 Updation of Mitre Tactic and Threats (#1850) 
Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2022-03-18 15:06:24 +05:30
Jonhnathan 22dd7f0ada Deprecate PrintNightmare Rules (#1852) 2022-03-17 19:39:36 -03:00
Jonhnathan a6edb7cfcf Update defense_evasion_posh_process_injection.toml (#1838) 
Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2022-03-17 19:37:42 -03:00
shashank-elastic b492258fb0 [New Rule] busybox shell evasion threat (#1842) 
* busybox shell evasion threat

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2022-03-17 09:54:46 +05:30
Justin Ibarra eb2f62940d Bump EQL to 0.9.12 (#1849) 
* Bump EQL to 0.9.12

* remove duplicate jsonschema
 2022-03-16 16:29:33 -08:00
shashank-elastic f7735df1d5 [New Rule] c89/c99 shell evasion threat (#1840) 
* c88/c99 shell evasion threat
 2022-03-16 23:06:34 +05:30
Jonhnathan e0f8f61ca0 Update persistence_user_account_added_to_privileged_group_ad.toml (#1845) 2022-03-16 13:06:04 -03:00
Jonhnathan b5f06f455c Update defense_evasion_microsoft_defender_tampering.toml (#1837) 2022-03-14 20:07:39 -03:00
Jonhnathan 53fbc50ea1 [New Rule] AdminSDHolder SDProp Exclusion Added (#1795) 
* AdminSDHolder SDProp Exclusion Added Initial Rule

* Update persistence_sdprop_exclusion_dsheuristics.toml

* Update rules/windows/persistence_sdprop_exclusion_dsheuristics.toml

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2022-03-10 14:17:01 -03:00
shashank-elastic c05f3c8aa3 gcc shell evasion threat (#1824) 2022-03-10 22:41:31 +05:30
shashank-elastic b49cce9fcb ssh shell evasion threat (#1827) 2022-03-10 22:39:05 +05:30
shashank-elastic ddbc1de45c mysql shell evasion threat (#1823) 2022-03-10 22:36:35 +05:30
shashank-elastic 334aa12aaf expect shell evasion threat (#1817) 
* expect shell evasion threat

* expect shell evasion threat

* Update rules/linux/defense_evasion_expect_binary.toml

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2022-03-07 14:22:56 -06:00
shashank-elastic 2b6a357a4b nice shell evasion threat (#1820) 
* nice shell evasion threat

* Update rules/linux/defense_evasion_nice_binary.toml

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2022-03-07 13:59:16 -06:00
shashank-elastic f9503f2096 [Rule Tuning] Rule description updates (#1811) 
Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2022-03-07 19:33:11 +05:30
shashank-elastic 2a82f18e43 [New Rule] Linux Restricted Shell Breakout via the Vi command (#1809) 
* new:rule:issue-1808 vi shell evasion threat

* Update rules/linux/defense_evasion_vi_binary.toml

* Update rules/linux/defense_evasion_vi_binary.toml

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

* new:rule:issue-1808 vi shell evasion threat

* new:rule:issue-1808 vi shell evasion threat

* new:rule:issue-1808 vi shell evasion threat

* Update rules/linux/defense_evasion_vi_binary.toml

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
 2022-03-04 13:46:19 -06:00
Apoorva Joshi b6737aa2c3 Updating beaconing docs (#1815) 
* Updating beaconind docs

* Update beaconing.md

* Update beaconing.md
 2022-03-04 11:34:40 -08:00
Justin Ibarra 6653acb21c [Github Workflows] Only generate navigator files on push to main (#1814) 
* [Github Workflows] Only generate navigator files on push to main

* fix workflow logic syntax
 2022-03-04 09:55:11 -09:00
Justin Ibarra bb105a3c43 Replace * in navigator filenames (#1813) 2022-03-04 08:45:55 -09:00
Justin Ibarra 254b4eb23f Generate ATT&CK navigator layer files and links (#1787) 
* Generate attack layer files and build with package
* add update-navigator-gists command
* add workflow to update navigator gists on pushes to main
* Add coverage readme
* fix keys for links
* update navigator layer names
* purge gist files prior to update; add badge
* Update how the navigator links are displayed
* moved navigator code to dedicated and refactored to dataclasses
* convert gist links to permalink versions
* alphabetize; catch 404 for gist update
 2022-03-04 08:20:44 -09:00
Samirbous a6582351b5 [New Rule] Potential Remote Credential Access via Registry (#1804) 
* [New Rule] Potential Remote Credential Access via Registry

4624 logon followed by hive file creation by regsvc svchost.exe by same user.name and host.id. This matches on secretdsdump and other similar implementations. require to correlation Elastic endpoint file events with System integration logs (4624).

Example of data :

* Delete workspace.xml

* Update credential_access_remote_sam_secretsdump.toml

* Update credential_access_remote_sam_secretsdump.toml

* add non ecs field

* Update non-ecs-schema.json

* Update credential_access_remote_sam_secretsdump.toml

* Update rules/windows/credential_access_remote_sam_secretsdump.toml

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

* Update rules/windows/credential_access_remote_sam_secretsdump.toml

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

* Update rules/windows/credential_access_remote_sam_secretsdump.toml

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

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
 2022-03-03 16:28:03 +01:00
Terrance DeJesus 202b9c7479 [New Rule] Execution control.exe via WorkFolders.exe (#1806) 
* added detection rule defense_evasion_workfolders_control_execution.toml related to issue #1586

* updated rule authors

* added references to the rule

* added timestamp override variable to the rule

* adjusted value of timestamp override from event_ingested to event.ingested

* Update rules/windows/defense_evasion_workfolders_control_execution.toml

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

* Update rules/windows/defense_evasion_workfolders_control_execution.toml

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

* Update rules/windows/defense_evasion_workfolders_control_execution.toml

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

* Update rules/windows/defense_evasion_workfolders_control_execution.toml

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

* Update rules/windows/defense_evasion_workfolders_control_execution.toml

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

* Update rules/windows/defense_evasion_workfolders_control_execution.toml

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

* linted toml file as suggested

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
 2022-03-03 09:21:40 -05:00
Jonhnathan 5c477849fe [Rule Tuning] Update PowerShell script_block queries to avoid partial matches (#1807) 
* Update script_block queries

* Update execution_posh_psreflect.toml
 2022-03-03 07:37:25 -03:00
shashank-elastic 283cbca702 find shell evasion threat(#1801) 
* new:rule:issue-1800 Adding new rule for find shell evasion

* new:rule:issue-1800 Adding new rule for find shell evasion

* new:rule:issue-1800 Adding new rule for find shell evasion

* Update rules/linux/privilege_escalation_find_binary.toml

* Update rules/linux/privilege_escalation_find_binary.toml

* new:rule:issue-1800 Adding Mittre Attack Techniques

* Update rules/linux/privilege_escalation_find_binary.toml

* Update rules/linux/privilege_escalation_find_binary.toml

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

* Update rules/linux/privilege_escalation_find_binary.toml

* Update rules/linux/privilege_escalation_find_binary.toml

* Update rules/linux/privilege_escalation_find_binary.toml

* Update rules/linux/privilege_escalation_find_binary.toml

* new:rule:issue-1800 Review Comments

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
 2022-03-02 22:00:29 +05:30
shashank-elastic c9dd047966 apt binary shell evasion threat (#1792) 
* new:rule:issue-1782 Adding a new Rule for apt binary shell evasion threat

* new:rule:issue-1782 Review Comments

* Update rules/linux/apt_binary_shell_evasion.toml

* new:rule:issue-1782 Adding Mittre Attack Techniques

* new:rule:issue-1782 Adding Mittre Attack Techniques

* new:rule:issue-1782 Adding Mittre Attack Techniques

* new:rule:issue-1782 Adding Mittre Attack Techniques

* new:rule:issue-1782 Adding Mittre Attack Techniques

* Update rules/linux/privilege_escalation_apt_binary.toml

* Update rules/linux/privilege_escalation_apt_binary.toml

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

* Update rules/linux/privilege_escalation_apt_binary.toml

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

* Update rules/linux/privilege_escalation_apt_binary.toml

* Update rules/linux/privilege_escalation_apt_binary.toml

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

* Update rules/linux/privilege_escalation_apt_binary.toml

* Update rules/linux/privilege_escalation_apt_binary.toml

* Update rules/linux/privilege_escalation_apt_binary.toml

* Update rules/linux/privilege_escalation_apt_binary.toml

* Update rules/linux/privilege_escalation_apt_binary.toml

* new:rule:issue-1782 Review Comments

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
 2022-03-02 21:57:40 +05:30
shashank-elastic e004a2f4a5 awk binary shell evasion threat (#1794) 
* new:rule:issue-1785 Adding a new Rule for awk binary shell evasion threat

* Update rules/linux/awk_binary_shell_evasion.toml

* Update rules/linux/awk_binary_shell_evasion.toml

* new:rule:issue-1785 Adding Mittre Attack Techniques

* new:rule:issue-1785 Adding Mittre Attack Techniques

* new:rule:issue-1785 Adding Mittre Attack Techniques

* Update rules/linux/privilege_escalation_awk_binary_shell.toml

* Update rules/linux/privilege_escalation_awk_binary_shell.toml

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

* Update rules/linux/privilege_escalation_awk_binary_shell.toml

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

* Update rules/linux/privilege_escalation_awk_binary_shell.toml

* Update rules/linux/privilege_escalation_awk_binary_shell.toml

* Update rules/linux/privilege_escalation_awk_binary_shell.toml

* Update rules/linux/privilege_escalation_awk_binary_shell.toml

* Update rules/linux/privilege_escalation_awk_binary_shell.toml

* new:rule:issue-1785 Review Comments

* new:rule:issue-1785 Review Comments

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
 2022-03-02 21:53:49 +05:30
shashank-elastic 758784d4d5 env binary shell evasion threat (#1793) 
* new:rule:issue-1786 Adding a new Rule for env binary shell evasion threat

* new:rule:issue-1786 Adding a new Rule for env binary shell evasion threat

* Update rules/linux/env_binary_shell_evasion.toml

* Update rules/linux/env_binary_shell_evasion.toml

* new:rule:issue-1786 Adding Mittre Attack Techniques

* new:rule:issue-1786 Adding Mittre Attack Techniques

* new:rule:issue-1786 Adding Mittre Attack Techniques

* new:rule:issue-1786 Adding Mittre Attack Techniques

* new:rule:issue-1786 Adding Mittre Attack Techniques

* Update rules/linux/privilege_escalation_env_binary.toml

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

* Update rules/linux/privilege_escalation_env_binary.toml

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

* Update rules/linux/privilege_escalation_env_binary.toml

* Update rules/linux/privilege_escalation_env_binary.toml

* new:rule:issue-1786 Review Comments

* Update rules/linux/defense_evasion_env_binary.toml

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
 2022-03-02 21:47:01 +05:30
Samirbous f48144c6b3 [New Rule] Registry Hive File Creation via SMB (#1779) 
* [New Rule] Registry Hive File Creation via SMB

Identifies the creation or modification of a medium size registry hive file via the SMB protocol :

* Update credential_access_moving_registry_hive_via_smb.toml

* Update etc/non-ecs-schema.json

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

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
 2022-03-02 10:12:17 +01:00
Jonhnathan 8a9b52f7e1 Update impact_azure_service_principal_credentials_added.toml (#1802) 2022-03-02 05:36:21 -03:00
Jonhnathan 1c50f35aed [Security Content] Update rules based on docs review (#1803) 
* Adds suggestions from security-docs

* Update rules/windows/lateral_movement_powershell_remoting_target.toml

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2022-03-01 21:39:30 -03:00
Apoorva Joshi 0122e1e65f Updating Host Risk Score docs (#1716) 
* Updating host risk score docs

* Small update

* Add host risk documentation for Kibana 8.1 features

* Update host-risk-score.md

* Rearranging some stuff

* Improve host risk SS

* Adding stack version info where applicable

* Update host-risk-score.md

* Update host-risk-score.md

* Update host-risk-score.md

* Update host-risk-score.md

* Update host-risk-score.md

Add host by risk table note

* Update host-risk-score.md

Co-authored-by: Pablo Neves Machado <pablo.nevesmachado@elastic.co>
 2022-02-28 15:19:31 -08:00
Justin Ibarra a5eb02ac28 Refresh ATT&CK to v10.1 (#1791) 2022-02-24 16:37:23 -09:00
Justin Ibarra d373db7659 Ensure github module is installed before running PR commands (#1777) 
* Ensure github module is installed before running PR commands

* move go and elastic-package assertions to top of command

* update error msg for missing pkg

* remove redundant github assertion

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
 2022-02-24 14:49:01 -09:00
Mika Ayenson aa7d79cc53 [New Rule] LSASS Memory Dump (#1784) 
* Add new event_data fields (ObjectName, ProcessName)

* Add detection for LSASS Memory Dump Handle Access

* Reference an example of 120089 AccessMask presence

* modify query to increase performance and update the description to remove ("This rule").

* expand path to Elastic Agent ensure syntax consistency

* Optimize rule based on AccessMaskDescription and additional False Positives.

* add AccessMaskDescription keyword and rule tune to make sure AccessMask is used

* filter dllhost.exe and or the condition between AccessMask and AccessMaskDescription

* cleanup
 2022-02-24 08:14:01 -05:00
Mika Ayenson 0aeb7399d4 [Bug] Fix toml-lint ordering of Mitre metadata #1249 (#1774) 
* Order the MITRE metadata by recursively sorting the rule object before writing.

* Refactor order_rule into the rule_formatter module.

* sort test_toml.json according to rule_formatter spec

* rename var to obj since this will traverse all data in the rule

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
 2022-02-22 13:57:49 -05:00
Jonhnathan 8664ef59f4 Update persistence_azure_conditional_access_policy_modified.toml (#1788) 2022-02-22 15:26:28 -03:00
github-actions[bot] 5e073af69d Lock versions for releases: 7.13,7.14,7.15,7.16,8.0,8.1 (#1781) 
* Locked versions for releases: 7.13,7.14,7.15,7.16,8.0,8.1
 2022-02-16 08:25:31 -09:00
Jonhnathan dec4243db0 [Rule Tuning] Update rules based on docs review (#1778) 
* Update rules based on docs review

* trivial change to trigger CLA

* undo changes from triggering build

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
 2022-02-16 07:42:06 -09:00
Jonhnathan 3227d65cd8 [Rule Tuning] Remove Windows Integration & Winlogbeat Support - User.id (#1773) 
* Remove Windows Integration & Winlogbeat Support

* Update lateral_movement_service_control_spawned_script_int.toml

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
 2022-02-15 23:04:55 -03:00
Jonhnathan 03f60cc11c [Rule Tuning] Potential Command and Control via Internet Explorer (#1771) 
* Use user.name on the sequence instead of user.id

* Update command_and_control_iexplore_via_com.toml

* Remove min_stack and comment "with runs"

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
 2022-02-15 22:58:01 -03:00
Jonhnathan 42436d3364 [New Rule] Potential Credential Access via DCSync (#1763) 
* "Potential Credential Access via DCSync" Initial Rule

* replace unintentional bracket removal

* json

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
 2022-02-15 21:40:26 -03:00
Jonhnathan fd678dc5cb Modified to use Integrity fields instead of user.id (#1772) 2022-02-15 15:22:49 -09:00
Jonhnathan 9bbe26fec0 [Rule Tuning] Sysmon Registry-based Rules Review & Fixes (#1775) 
* Initial Review of Sysmon Registry Rules

* Update defense_evasion_sip_provider_mod.toml
 2022-02-15 09:56:37 -03:00
Jonhnathan c646a18efb Update discovery_net_command_system_account.toml (#1769) 2022-02-14 12:11:12 -03:00
Samirbous 326aa64ff6 [New Rule] Windows Service Installed via an Unusual Client (#1759) 
* [New Rule] Windows Service Installed via an Unusual Client

https://www.x86matthew.com/view_post?id=create_svc_rpc

* Update non-ecs-schema.json

* Update rules/windows/privilege_escalation_windows_service_via_unusual_client.toml

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

* Update rules/windows/privilege_escalation_windows_service_via_unusual_client.toml

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

* Add ```s

* Update privilege_escalation_windows_service_via_unusual_client.toml

* add missing comma to schema

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
 2022-02-11 21:56:59 +01:00