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1790 Commits

Author SHA1 Message Date
Ruben Groenewoud 28c3d074b8 [New Rule] Process Started with Executable Stack (#4340) 
* [New Rule] Process Started with Executable Stack

* [New Rule] Process Started with Executable Stack

* Update execution_executable_stack_execution.toml

* Update rules/linux/execution_executable_stack_execution.toml

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

---------

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2025-01-17 17:36:39 +01:00
Terrance DeJesus ca3994af0d [Deprecation] Deprecating Potential Password Spraying of Microsoft 365 User Accounts (#4394) 
* Deprecating 'Potential Password Spraying of Microsoft 365 User Accounts'

* adding 'Deprecated - Suspicious JAVA Child Process'

* updated dates

* changed to deprecated maturity
 2025-01-17 10:52:13 -05:00
Ruben Groenewoud ac541f0b18 [New Rules] Kernel Seeking/Unpacking Activity (#4341) 
* [New Rules] Kernel Seeking/Unpacking Activity

* ++
 2025-01-16 12:04:04 +01:00
Ruben Groenewoud bba5096efa [New Rule] System Binary Path File Permission Modification (#4339) 2025-01-16 10:32:23 +01:00
Ruben Groenewoud 75c7c09595 [New Rule] Suspicious Path Invocation from Command Line (#4338) 2025-01-16 10:20:37 +01:00
Terrance DeJesus 5162067a51 [New Rule] Adding Coverage for Unusual AWS S3 Object Encryption with SSE-C (#4377) 
* new rule 'Unusual AWS S3 Object Encryption with SSE-C'

* updated pyproject patch version

* bump repo version

* Update rules/integrations/aws/impact_s3_unusual_object_encryption_with_sse_c.toml

* updating patch version

* updating patch version

* Adding additional threshold rule
 2025-01-15 14:11:58 -05:00
Terrance DeJesus c04ae6d444 [New Rule] Adding Coverage for SNS Topic Message Publish by Rare User (#4350) 
* new rule 'SNS Topic Message Publish by Rare User'

* added new terms note

* added investigation guide tag

* fixed tag, added investigation fiedls

* toml lint

* fixed mitre ATT&CK mapping
 2025-01-15 13:55:45 -05:00
Terrance DeJesus 97b3f43870 [New Rule] Adding Coverage for AWS EC2 Deprecated AMI Discovery (#4328) 
* new rule 'AWS EC2 Deprecated AMI Discovery'

* updated type

* updated non-ecs; bumped package version

* updated query

* added missing index

* updated patch version
 2025-01-15 11:53:18 -05:00
Terrance DeJesus f8312cc5b0 [Rule Tuning] Adjusting Verbiage for AWS EC2 Instance Connect SSH Public Key Uploaded (#4334) 
* tuning rule 'AWS EC2 Instance Connect SSH Public Key Uploaded'

* updating subtechnique ID

* added mitre tag lateral movement

* changing sequence of mitre ATT&CK
 2025-01-15 11:12:53 -05:00
Terrance DeJesus f97007f3a8 [New Rule] Adding Coverage for AWS SQS Queue Purge (#4354) 
* new rule 'AWS SQS Queue Purge'

* Update rules/integrations/aws/defense_evastion_sqs_purge_queue.toml

* added investigation guide tag; fixed file name
 2025-01-15 10:52:22 -05:00
Jonhnathan 447fce3b08 [Rule Tuning] Suspicious Communication App Child Process (#4369) 2025-01-15 12:13:10 -03:00
Samirbous bcca0a2016 [New] Sensitive Audit Policy Sub-Category Disabled (#4373) 
* [New] Sensitive Audit Policy Sub-Category Disabled

https://elasticstack.slack.com/archives/C016E72DWDS/p1736784727633579

* Update rules/windows/defense_evasion_audit_policy_disabled_winlog.toml

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>

* Update rules/windows/defense_evasion_audit_policy_disabled_winlog.toml

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>

* Update rules/windows/defense_evasion_audit_policy_disabled_winlog.toml

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>

---------

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
 2025-01-14 12:13:45 -03:00
Ruben Groenewoud 79b26085f5 [New Rule] Potential Process Name Stomping with Prctl (#4352) 
* [New Rule] Potential Process Name Stomping with Prctl

* Update defense_evasion_prctl_process_name_tampering.toml
 2025-01-13 16:35:40 +01:00
James Valente f52cfb3729 [Rule: Tuning] - Azure blob permission modification tagging - Correct tags (#4371) 
* Remove `Data Source: Elastic Defend` tag

* Update metadata

---------

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
 2025-01-13 10:40:34 -03:00
Samirbous 65b95a1996 Update discovery_potential_syn_port_scan_detected.toml (#4366) 2025-01-10 15:29:29 +00:00
Jonhnathan 6b0b988d79 [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 10 (#4357) 
* [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 10

* Remaining ones
 2025-01-09 11:54:46 -03:00
Jonhnathan 7eeca006bc [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 8 (#4355) 2025-01-09 11:38:26 -03:00
Jonhnathan e66bca73e0 [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 7 (#4349) 
* [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 7

* Update rules/linux/discovery_process_capabilities.toml

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

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
 2025-01-09 11:28:21 -03:00
Jonhnathan cc889e3bf2 [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 4 (#4345) 
* [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 4

* Apply suggestions from code review

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

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
 2025-01-09 10:59:32 -03:00
Jonhnathan 0fc83fe815 [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 3 (#4343) 
* [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 3

* .

* Update rules/linux/command_and_control_ip_forwarding_activity.toml

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

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
 2025-01-09 10:35:58 -03:00
Jonhnathan d6ceb88558 [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 6 (#4348) 2025-01-09 10:17:57 -03:00
Jonhnathan f4a022c5d2 [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 5 (#4346) 
* [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - X

* Update rules/linux/defense_evasion_directory_creation_in_bin.toml

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

* Update rules/linux/defense_evasion_mount_execution.toml

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

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
 2025-01-09 09:44:40 -03:00
Jonhnathan 2af2e1f57b [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 9 (#4356) 2025-01-09 08:29:51 -03:00
Jonhnathan 4142868956 [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 2 (#4333) 
Co-authored-by: shashank-elastic <91139415+shashank-elastic@users.noreply.github.com>
 2025-01-08 15:23:19 -03:00
Jonhnathan 282f613ddf [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 1 (#4330) 
* [Rule Tuning] Linux 3rd Party EDR Support - Crowdstrike and S1 - 1

* min_stack

* Update defense_evasion_doas_configuration_creation_or_rename.toml

---------

Co-authored-by: shashank-elastic <91139415+shashank-elastic@users.noreply.github.com>
 2025-01-08 14:40:43 -03:00
Ruben Groenewoud d16f56b4e2 [New Rule] SSH via Backdoored System User (#4336) 
* [New Rule] SSH via Backdoored System User

* ++

* Update persistence_ssh_via_backdoored_system_user.toml

* Update persistence_ssh_via_backdoored_system_user.toml

* Update rules/linux/persistence_ssh_via_backdoored_system_user.toml

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

* Update rules/linux/persistence_ssh_via_backdoored_system_user.toml

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

---------

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
 2025-01-07 13:20:36 +01:00
Ruben Groenewoud 2530c4d376 [New Rule] Pluggable Authentication Module Source Download (#4301) 
* [New Rule] Pluggable Authentication Module Source Download

* Update persistence_pluggable_authentication_module_source_download.toml

* Update rules/linux/persistence_pluggable_authentication_module_source_download.toml
 2025-01-07 13:04:05 +01:00
Samirbous 419e5c1ad3 [Tuning] Suspicious WMI Event Subscription Created (#4327) 
* Update persistence_sysmon_wmi_event_subscription.toml

* Update non-ecs-schema.json

* Update persistence_sysmon_wmi_event_subscription.toml

* Update detection_rules/etc/non-ecs-schema.json

* Update pyproject.toml

---------

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
 2025-01-06 09:40:26 -03:00
Ruben Groenewoud feaeabf60c [New Rule] Dynamic Linker (ld.so) Creation (#4306) 2025-01-03 17:06:38 +01:00
Ruben Groenewoud fea5c90ed9 [New Rule] Kernel Object File Creation (#4325) 
* [New Rule] Kernel Object File Creation

* ++

* Update rules/linux/persistence_kernel_object_file_creation.toml

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>

---------

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
 2025-01-03 16:49:59 +01:00
Ruben Groenewoud 466097c31e [Rule Tuning] Potential Persistence via File Modification (#4310) 
* [Rule Tuning] Potential Persistence via File Modification

* Update persistence_suspicious_file_modifications.toml

* Update persistence_suspicious_file_modifications.toml
 2025-01-03 16:19:58 +01:00
Ruben Groenewoud 53ca51b20c [New Rule] Simple HTTP Web Server Connection (#4309) 2025-01-03 16:06:28 +01:00
Ruben Groenewoud e26e4e40b4 [New Rule] Simple HTTP Web Server Creation (#4308) 2025-01-03 15:54:25 +01:00
Ruben Groenewoud 0273997581 [New Rule] Loadable Kernel Module Configuration File Creation (#4307) 2025-01-03 15:33:31 +01:00
Ruben Groenewoud 7e775a6c95 [New Rule] Unusual Preload Environment Variable Process Execution (#4305) 2025-01-03 15:23:41 +01:00
Ruben Groenewoud 9424a57207 [Rule Tuning] Creation or Modification of Pluggable Authentication Module or Configuration (#4304) 2025-01-03 15:05:05 +01:00
Ruben Groenewoud c9c8e3501e [New Rule] Unusual SSHD Child Process (#4303) 
* [New Rule] Unusual SSHD Child Process

* Update persistence_unusual_sshd_child_process.toml
 2025-01-03 14:50:43 +01:00
Ruben Groenewoud c7fe940206 [New Rule] Pluggable Authentication Module Creation in Unusual Directory (#4302) 
* [New Rule] Pluggable Authentication Module Creation in Unusual Directory

* Update persistence_pluggable_authentication_module_creation_in_unusual_dir.toml

* Update rules/linux/persistence_pluggable_authentication_module_creation_in_unusual_dir.toml
 2025-01-03 14:35:08 +01:00
Ruben Groenewoud 5384191934 [New Rule] PAM Version Discovery (#4300) 
* [New Rule] PAM Version Discovery

* Update discovery_pam_version_discovery.toml

* Update discovery_pam_version_discovery.toml

* Update discovery_pam_version_discovery.toml

* Update rules/linux/discovery_pam_version_discovery.toml
 2025-01-03 14:25:38 +01:00
Jonhnathan aca416a779 [Rule Tuning] Windows misc Rule Tuning (#4298) 2025-01-02 07:44:01 -03:00
rad9800 c99cf9279d [Tuning] Uncommon Registry Persistence Change (#4286) 
* Update persistence_registry_uncommon.toml

Add registry rules for additional SMSS persistence vectors

* Update persistence_registry_uncommon.toml

* Update persistence_registry_uncommon.toml

---------

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
 2024-12-25 19:06:58 -03:00
Terrance DeJesus 9fb2dea7aa [New Rule] Endpoint Security Promotion Rules for Specific Events (#3533) 
* new endpoint security rules for specific alerts

* updated risk scores

* fixed rule names and UUIDs

* changed logic to use message field for detection vs prevention

* reverting changes

* reverting changes

* reverting to old commit

* reverting to old commit

* reverting to old commit

* reverting to old commit

* changed naming to Elastic Defend

* updated rule dates and min-stacks

* linted; adjusted queries

* updated ransomware, memory sig or shellcode risk

* Update rules/integrations/endpoint/elastic_endpoint_security.toml

* updated promotion rule

* fixed typos in naming

* updated setup guides

* added intervals

* added MITRE

* added investigation guide for Memory Threat

* ++

* ++

* Update rules/integrations/endpoint/elastic_endpoint_security_behavior_detected.toml

Co-authored-by: natasha-moore-elastic <137783811+natasha-moore-elastic@users.noreply.github.com>

* Update rules/integrations/endpoint/elastic_endpoint_security_memory_signature_prevented.toml

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

* Update rules/integrations/endpoint/elastic_endpoint_security_memory_signature_detected.toml

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

* Update rules/integrations/endpoint/elastic_endpoint_security_malicious_file_prevented.toml

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

* Update rules/integrations/endpoint/elastic_endpoint_security_memory_signature_detected.toml

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

* Update rules/integrations/endpoint/elastic_endpoint_security_memory_signature_prevented.toml

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

* Update rules/integrations/endpoint/elastic_endpoint_security_ransomware_detected.toml

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

* Update rules/integrations/endpoint/elastic_endpoint_security_ransomware_prevented.toml

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

* ++

* ++

* ++

* ++

* Update rules/integrations/endpoint/elastic_endpoint_security.toml

* Update rules/integrations/endpoint/elastic_endpoint_security_behavior_detected.toml

* Update rules/integrations/endpoint/elastic_endpoint_security_behavior_prevented.toml

* Update rules/integrations/endpoint/elastic_endpoint_security_malicious_file_detected.toml

* Update rules/integrations/endpoint/elastic_endpoint_security_memory_signature_prevented.toml

* ++

* ++

* ++

* Update rules/integrations/endpoint/elastic_endpoint_security_behavior_detected.toml

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

* Update rules/integrations/endpoint/execution_elastic_malicious_file_detected.toml

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

* Update rules/integrations/endpoint/impact_elastic_ransomware_detected.toml

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

* Update rules/integrations/endpoint/elastic_endpoint_security_behavior_prevented.toml

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

* Update rules/integrations/endpoint/execution_elastic_malicious_file_prevented.toml

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

* Update rules/integrations/endpoint/impact_elastic_ransomware_prevented.toml

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

* Update rules/integrations/endpoint/defense_evasion_elastic_memory_threat_prevented.toml

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

* Update rules/integrations/endpoint/defense_evasion_elastic_memory_threat_prevented.toml

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

* Update rules/integrations/endpoint/elastic_endpoint_security_behavior_prevented.toml

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

* Update rules/integrations/endpoint/elastic_endpoint_security_behavior_detected.toml

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

* Update rules/integrations/endpoint/elastic_endpoint_security_behavior_prevented.toml

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

* Update rules/integrations/endpoint/execution_elastic_malicious_file_detected.toml

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

* Update rules/integrations/endpoint/execution_elastic_malicious_file_detected.toml

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

* Update rules/integrations/endpoint/execution_elastic_malicious_file_prevented.toml

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

* Update rules/integrations/endpoint/execution_elastic_malicious_file_prevented.toml

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

* Update rules/integrations/endpoint/execution_elastic_malicious_file_prevented.toml

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

* Update rules/integrations/endpoint/impact_elastic_ransomware_detected.toml

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

* Update rules/integrations/endpoint/impact_elastic_ransomware_detected.toml

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

* Update rules/integrations/endpoint/impact_elastic_ransomware_detected.toml

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

* Update rules/integrations/endpoint/impact_elastic_ransomware_prevented.toml

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

* Update rules/integrations/endpoint/impact_elastic_ransomware_prevented.toml

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

* Update rules/integrations/endpoint/defense_evasion_elastic_memory_threat_detected.toml

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

* Update rules/integrations/endpoint/impact_elastic_ransomware_prevented.toml

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

* Update rules/integrations/endpoint/defense_evasion_elastic_memory_threat_detected.toml

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

* Update rules/integrations/endpoint/defense_evasion_elastic_memory_threat_detected.toml

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

* Update rules/integrations/endpoint/defense_evasion_elastic_memory_threat_prevented.toml

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

* Update defense_evasion_elastic_memory_threat_prevented.toml

* toml-lint

* Update rules/integrations/endpoint/execution_elastic_malicious_file_detected.toml

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

* ++

---------

Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
Co-authored-by: Samirbous <Samir.Bousseaden@elastic.co>
Co-authored-by: natasha-moore-elastic <137783811+natasha-moore-elastic@users.noreply.github.com>
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
 2024-12-19 13:24:23 -05:00
Terrance DeJesus dad008ea34 [Rule Tuning] Lookback Times for Okta Multiple Session and AWS KMS Retrieval Rules (#4324) 
* rule tuning Okta and AWS lookback times

* adjusted Query Registry using Built-in Tools

* adjusted My First Rule

* Update rules/cross-platform/guided_onboarding_sample_rule.toml

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

* Update rules/integrations/okta/lateral_movement_multiple_sessions_for_single_user.toml

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

---------

Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
 2024-12-19 13:03:50 -05:00
Terrance DeJesus 0a740074c9 new rule 'Azure Entra MFA TOTP Brute Force Attempts' (#4297) 2024-12-12 11:00:02 -05:00
shashank-elastic f0291b440a Minstack endpoint rules with process.group.id fields (#4294) 2024-12-10 21:03:32 +05:30
Terrance DeJesus e6012b1db6 Removing ESQL query format error (#4292) 2024-12-10 09:27:37 -05:00
Terrance DeJesus 052672b09f [Rule Tuning] Update Okta and Github Min-Stack Versions for Release (#4290) 2024-12-09 20:58:33 +05:30
Terrance DeJesus e7b88ae3fc [New Rule] Adding Coverage for Self-Created Login Profile for Root Accounts in AWS (#4277) 
* new rule 'AWS IAM Login Profile Added for Root'

* added min-stack

* linted; fixed rule schema errors

---------

Co-authored-by: shashank-elastic <91139415+shashank-elastic@users.noreply.github.com>
 2024-12-09 08:55:20 -05:00
shashank-elastic 2c848c5111 Prep for Release 8.18 (#4288) 2024-12-09 18:25:13 +05:30
Isai 511c108ba1 [Tuning] SDH - Possible Consent Grant Attack via Azure-Registered Application (#4283) 
* [Tuning] Possible Consent Grant Attack via Azure-Registered Application

SDH related rule tuning for o365.audit dataset

* removing renamed field from query
 2024-12-06 17:27:38 -05:00