Commit Graph

1439 Commits

Author SHA1 Message Date
Justin Ibarra e7959e88b9 [Bug] Fix test_os_and_platform_in_query test and rules (#3695)
Co-authored-by: brokensound77 <brokensound77@users.noreply.github.com>

(cherry picked from commit ce21acef9c)
2024-05-20 15:51:28 +00:00
Jonhnathan 0ab70f13a4 [Rule Tuning] Add Initial SentinelOne Compatibility to Windows DRs (#3627)
* [Rule Tuning] Add Initial SentinelOne Compatibility

* updated definitions.py; updated tags; fixed unit tests

* added prerelease versions for s1 integration; updated build CLI commands to allow prerelease; bumped min-stacks

* updating manifests and integrations

* fixing flake errors

* min_stack

---------

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
Co-authored-by: terrancedejesus <terrance.dejesus@elastic.co>
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>

(cherry picked from commit d023ad66b1)
2024-05-20 12:59:37 +00:00
Samirbous 98e0777b34 Update credential_access_suspicious_web_browser_sensitive_file_access.toml (#3691)
(cherry picked from commit ec27bf8545)
2024-05-18 04:38:02 +00:00
Samirbous 1d7e597662 [Tuning] Suspicious Microsoft 365 Mail Access by ClientAppId (#3677)
* Update initial_access_microsoft_365_abnormal_clientappid.toml

* Update initial_access_microsoft_365_abnormal_clientappid.toml

* Update initial_access_microsoft_365_abnormal_clientappid.toml

* Update initial_access_microsoft_365_abnormal_clientappid.toml

---------

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

(cherry picked from commit f0b226c2b0)
2024-05-15 17:20:18 +00:00
Jonhnathan ad7a8afb32 [Rule Tuning] Windows Service Installed via an Unusual Client (#3671)
* [Rule Tuning] Windows Service Installed via an Unusual Client

* Update privilege_escalation_windows_service_via_unusual_client.toml

* Update rules/windows/privilege_escalation_windows_service_via_unusual_client.toml

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

---------

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

(cherry picked from commit 0eef7f62ff)
2024-05-15 13:39:59 +00:00
Mika Ayenson ca8af123d2 [FR] Add max_signal note, unit test, and rule tuning (#3669)
(cherry picked from commit f07a9e6fbc)
2024-05-14 16:23:18 +00:00
Terrance DeJesus 9dceb36a7e [New Rule] Route53 Resolver Query Log Configuration Deleted (#3592)
* new rule 'Route53 Resolver Query Log Configuration Deleted'

* added investigation guide

* adjusted investigation notes

* Update rules/integrations/aws/defense_evasion_route53_dns_query_resolver_config_deletion.toml

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

---------

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

(cherry picked from commit 2375297879)
2024-05-14 14:32:44 +00:00
Samirbous cbac37db59 [New] Unusual Execution via Microsoft Common Console File (#3663)
* [New] Unusual Execution via Microsoft Common Console File

https://www.genians.co.kr/blog/threat_intelligence/facebook

* Update rules/windows/execution_initial_access_via_msc_file.toml

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

* Update rules/windows/execution_initial_access_via_msc_file.toml

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

* Update rules/windows/execution_initial_access_via_msc_file.toml

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

* Update execution_initial_access_via_msc_file.toml

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>

(cherry picked from commit a1ef8c9fc0)
2024-05-14 14:16:02 +00:00
Samirbous 95fd920afe [New] Potential File Download via a Headless Browser (#3660)
* [New] Potential File Download via a Headless Browser

* Update command_and_control_headless_browser.toml

* Update command_and_control_headless_browser.toml

* Update command_and_control_common_webservices.toml

* Update command_and_control_headless_browser.toml

* Update command_and_control_headless_browser.toml

(cherry picked from commit 83462a3087)
2024-05-14 13:04:35 +00:00
Terrance DeJesus f918f091c3 [New Rule] AWS EC2 AMI Shared with Another Account (#3600)
* new rule 'AWS EC2 AMI Shared with Another Account'

* linted; updated UUID

* added investigation guide

* updated description

* fixed spelling errors

* Update rules/integrations/aws/exfiltration_ec2_ami_shared_with_separate_account.toml

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

* fixed spacing issue

---------

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

(cherry picked from commit d505b95f3c)
2024-05-14 06:04:20 +00:00
Terrance DeJesus 727e7ada2e [New Rule] First Occurrence of User Identity Retrieving Credentials from EC2 Instance with an Assumed Role (#3586)
* new rule 'First Occurrence of User Identity Sending  Requests to EC2 Instance'

* updated description and name

* added investigation guide; adjusted description

* Update rules/integrations/aws/credential_access_aws_getpassword_for_ec2_instance.toml

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

* Update rules/integrations/aws/credential_access_aws_getpassword_for_ec2_instance.toml

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

* Update rules/integrations/aws/credential_access_aws_getpassword_for_ec2_instance.toml

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

* Update rules/integrations/aws/credential_access_aws_getpassword_for_ec2_instance.toml

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

* updated query logic

* fixed spacing issue

* Update rules/integrations/aws/credential_access_aws_getpassword_for_ec2_instance.toml

* Update rules/integrations/aws/credential_access_aws_getpassword_for_ec2_instance.toml

---------

Co-authored-by: Isai <59296946+imays11@users.noreply.github.com>
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>

(cherry picked from commit 38e0f13e23)
2024-05-14 03:15:43 +00:00
Jonhnathan 2f88a93d62 [New Rule] Alternate Data Stream Creation at Volume Root Directory (#3517)
* [New Rule] Alternate Data Stream Creation at Volume Root Directory

* Update defense_evasion_root_dir_ads_creation.toml

---------

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

(cherry picked from commit 6150f222b2)
2024-05-13 11:42:34 +00:00
Colson Wilhoit c915b9959d [Tuning] MacOS Comprehensive Detection Rule Tuning (#3435)
* Update to use new data source

* Exclude FPs

* Update logic

* Exclude FPs

* Update to match ER logic

* Exclude FP

* Update to match endpoint rule and reduce FPs

* Update logic to reduce FPs

* Update logic to reduce FPs

* Exclude FPs

* Update logic to remove FPs

* Update logic to reduce FPs

* Update logic and min stack version to reduce FPs

* Exclude FP

* Remove FPs

* Update logic and min stack to reduce FPs

* Exclude FPs

* Update logic and min stack to exclude FPs

* Update logic and min stack to exclude FPs

* Update logic to be more efficient

* Update logic

* Update rules/macos/credential_access_promt_for_pwd_via_osascript.toml

* Update rules/macos/defense_evasion_modify_environment_launchctl.toml

* Update rules/macos/persistence_docker_shortcuts_plist_modification.toml

* Update rules/macos/privilege_escalation_local_user_added_to_admin.toml

* Update rules/macos/defense_evasion_attempt_del_quarantine_attrib.toml

* Update persistence_folder_action_scripts_runtime.toml

* Update rules/macos/credential_access_keychain_pwd_retrieval_security_cmd.toml

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

* Update rules/macos/persistence_credential_access_authorization_plugin_creation.toml

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

* Update rules/macos/execution_installer_package_spawned_network_event.toml

* Update rules/macos/initial_access_suspicious_mac_ms_office_child_process.toml

* Update rules/macos/credential_access_credentials_keychains.toml

* Update rules/macos/credential_access_suspicious_web_browser_sensitive_file_access.toml

* Update rules/macos/credential_access_suspicious_web_browser_sensitive_file_access.toml

* Update rules/macos/persistence_loginwindow_plist_modification.toml

* Update rules/macos/persistence_folder_action_scripts_runtime.toml

* Fix

* Fix

* Fix

* Update min stack comments

* Update rules/macos/persistence_credential_access_authorization_plugin_creation.toml

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

* Update rules/macos/credential_access_promt_for_pwd_via_osascript.toml

* Update rules/macos/credential_access_suspicious_web_browser_sensitive_file_access.toml

* Update rules/macos/credential_access_systemkey_dumping.toml

* Update rules/macos/discovery_users_domain_built_in_commands.toml

* Update rules/macos/initial_access_suspicious_mac_ms_office_child_process.toml

* Update rules/macos/persistence_finder_sync_plugin_pluginkit.toml

* Update rules/macos/privilege_escalation_local_user_added_to_admin.toml

* Update rules/macos/privilege_escalation_applescript_with_admin_privs.toml

* Update rules/macos/persistence_folder_action_scripts_runtime.toml

* Remove field

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
Co-authored-by: terrancedejesus <terrance.dejesus@elastic.co>
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>

(cherry picked from commit 1fb58e1b61)
2024-05-11 17:59:28 +00:00
Jonhnathan 2e270cf78c [New Rule] Potential PowerShell HackTool Script by Author (#2472)
* [New Rule] Potential PowerShell HackTool Script by Author

* Update execution_posh_hacktool_authors.toml

* Update execution_posh_hacktool_authors.toml

* Update execution_posh_hacktool_authors.toml

* Apply suggestions from code review

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

* Update execution_posh_hacktool_authors.toml

* Apply suggestions from code review

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

* Update execution_posh_hacktool_authors.toml

---------

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>

(cherry picked from commit f85d7482fd)
2024-05-09 16:08:45 +00:00
Samirbous ae6bb88edb [Tuning] Component Object Model Hijacking (#3655)
* [Tuning] Component Object Model Hijacking

* Update rules/windows/persistence_suspicious_com_hijack_registry.toml

* Update persistence_suspicious_com_hijack_registry.toml

---------

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

(cherry picked from commit 7a61070e08)
2024-05-08 16:52:11 +00:00
Samirbous 4bbb8c2642 [New] Ransomware over SMB (#3638)
* [New] Ransomware over SMB

* Update impact_ransomware_note_file_over_smb.toml

* Update impact_ransomware_file_rename_smb.toml

* ++

* Update impact_high_freq_file_renames_by_kernel.toml

* Update impact_high_freq_file_renames_by_kernel.toml

* Update impact_high_freq_file_renames_by_kernel.toml

* Update impact_ransomware_file_rename_smb.toml

* Update impact_ransomware_note_file_over_smb.toml

* Update impact_high_freq_file_renames_by_kernel.toml

(cherry picked from commit 4a2e2764cd)
2024-05-07 05:46:07 +00:00
Ruben Groenewoud d3faf0d0d6 [New Rule] Shell Configuration Modification (#3629)
* [New Rule] Shell Configuration Modification

* description update

* uuid update

* query update

* query update

* Update rules/linux/persistence_shell_configuration_modification.toml

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

---------

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

(cherry picked from commit e29994c338)
2024-04-30 11:48:38 +00:00
Ruben Groenewoud f7215a7ced [Rule Tuning] Linux DRs (#3628)
(cherry picked from commit 115c3a6dfd)
2024-04-30 11:33:56 +00:00
Samirbous 55a17e12db [New] Potential privilege escalation via CVE-2022-38028 (#3616)
* [New] Potential privilege escalation via CVE-2022-38028

https://www.microsoft.com/en-us/security/blog/2024/04/22/analyzing-forest-blizzards-custom-post-compromise-tool-for-exploiting-cve-2022-38028-to-obtain-credentials/

* Update privilege_escalation_exploit_cve_202238028.toml

* Update privilege_escalation_exploit_cve_202238028.toml

* Update privilege_escalation_exploit_cve_202238028.toml

---------

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>

(cherry picked from commit 8f6de1c235)
2024-04-29 14:18:06 +00:00
shashank-elastic 868ab80c63 Fix minstack version for 0365 in azure integration rules (#3612)
(cherry picked from commit 7673ba484d)
2024-04-22 13:55:15 +00:00
Terrance DeJesus bda38d6f27 updating performance note (#3608)
(cherry picked from commit 69d42ecc71)
2024-04-18 20:43:50 +00:00
Jonhnathan fea73c9686 [New Rule] Potential Windows Session Hijacking via CcmExec (#3602)
* [New Rule] Potential Windows Session Hijacking via CcmExec

* Update rules/windows/defense_evasion_sccm_scnotification_dll.toml

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

---------

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

(cherry picked from commit 6ae0902a38)
2024-04-18 16:05:03 +00:00
Jonhnathan 4562d694b0 [Rule Tuning] Further Tight up Elastic Defend Index Patterns (#3584)
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>

(cherry picked from commit 5004ff115c)
2024-04-16 16:34:23 +00:00
Terrance DeJesus f3d95cccce adjust aws rule index patterns and tags (#3595)
(cherry picked from commit 74312797bf)
2024-04-16 14:16:36 +00:00
Jonhnathan e33d80804f [Rule Tuning] Windows BBR Promotion (#3577)
* [Rule Tuning] Windows BBR Promotion

* Update non-ecs-schema.json

* Update persistence_netsh_helper_dll.toml

* Update persistence_werfault_reflectdebugger.toml

* Update privilege_escalation_unquoted_service_path.toml

* Update defense_evasion_msdt_suspicious_diagcab.toml

* Update defense_evasion_suspicious_msiexec_execution.toml

* Update discovery_security_software_wmic.toml

* Revert "Update defense_evasion_msdt_suspicious_diagcab.toml"

This reverts commit 0e1f3ea3e18a146c421a5bda784633cca4a2b0c0.

* Revert "Update defense_evasion_suspicious_msiexec_execution.toml"

This reverts commit 4e26a167774ad712d19334a4c2c712cc1d550e7f.

* Revert "Update discovery_security_software_wmic.toml"

This reverts commit d638cec354a46cacab1e62596f4ad939a1d9c32a.

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>

(cherry picked from commit c2d1586270)
2024-04-16 12:36:20 +00:00
Samirbous f291aa105d Update defense_evasion_untrusted_driver_loaded.toml (#3596)
excluding `errorCode_endpoint:*` status (noisy)

(cherry picked from commit 919a438257)
2024-04-15 14:00:51 +00:00
Samirbous 52e86dc8e8 [Tuning] Connection to Commonly Abused Web Services (#3587)
excluding top noisy patterns :

- Microsoft signed binaries connecting to graph.microsoft.com and sharepoint.com
- Slack, Dropbox and other signed binaries.
- github.com (removed), most abused is rawgithub dns.question.name for ingress-script/payload download

(cherry picked from commit 9692e59abb)
2024-04-11 11:18:52 +00:00
Jonhnathan 74d428b09e [Rule Tuning] Svchost spawning Cmd (#3578)
Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>

(cherry picked from commit aa0cc42ff6)
2024-04-08 10:57:52 +00:00
Mirko Bez a6ea41cae0 Add filebeat-* index pattern to rules based on system.auth dataset (#3561)
Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>

(cherry picked from commit 153657029b)
2024-04-03 09:36:00 +00:00
shashank-elastic 4e88c2d024 Fix minstack version for O365 prod rules (#3565)
(cherry picked from commit 0e2eb5a84c)
2024-04-02 16:13:40 +00:00
Jonhnathan eca9b72a2c [Rule Tuning] First Time Seen Commonly Abused Remote Access Tool Execution (#3545)
* [Rule Tuning] First Time Seen Commonly Abused Remote Access Tool Execution

* Update command_and_control_new_terms_commonly_abused_rat_execution.toml

* Update command_and_control_new_terms_commonly_abused_rat_execution.toml

* Update command_and_control_new_terms_commonly_abused_rat_execution.toml

* Update rules/windows/command_and_control_new_terms_commonly_abused_rat_execution.toml

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

---------

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>

(cherry picked from commit 4ab7c9b178)
2024-04-02 14:15:05 +00:00
Samirbous 6cf92b25d3 [Tuning] Connection to Commonly Abused Web Services (#3425)
* Update command_and_control_common_webservices.toml

* Update command_and_control_common_webservices.toml

---------

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

(cherry picked from commit 69173872da)
2024-04-02 13:49:39 +00:00
Samirbous 22857aca2e [New Rule] Suspicious Access to LDAP Attributes (#2504)
* Create discovery_high_number_ad_properties.toml

* Update discovery_high_number_ad_properties.toml

* Update rules/windows/discovery_high_number_ad_properties.toml

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

* Update rules/windows/discovery_high_number_ad_properties.toml

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

* fixed tags; moved note to setup, updated date

* Update discovery_high_number_ad_properties.toml

---------

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
Co-authored-by: terrancedejesus <terrance.dejesus@elastic.co>

(cherry picked from commit f025616cbd)
2024-04-02 13:05:41 +00:00
Jonhnathan 5a18a6cea2 [Rule Tuning] Potential Application Shimming via Sdbinst (#3553)
Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>

(cherry picked from commit c781376188)
2024-04-02 09:43:02 +00:00
Samirbous de3db7007a [New] Potential Execution via XZBackdoor (#3555)
* [New] Potential Execution via XZBackdoor

* Update rules/linux/persistence_suspicious_ssh_execution_xzbackdoor.toml

Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com>

* Update rules/linux/persistence_suspicious_ssh_execution_xzbackdoor.toml

Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com>

* Update persistence_suspicious_ssh_execution_xzbackdoor.toml

* Update persistence_suspicious_ssh_execution_xzbackdoor.toml

---------

Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>

(cherry picked from commit f2490007e8)
2024-04-02 04:22:46 +00:00
Jonhnathan 21f23f6d33 [Rule Tuning] Tighten up Indexes of Elastic Defend Windows Rules (#3549)
* [Rule Tuning] Tighten up Indexes of Elastic Defend Windows Rules

* Delete test.pkl

---------

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

(cherry picked from commit b47b91b9ec)
2024-04-01 23:52:53 +00:00
Jonhnathan 7838042839 [Rule Tuning] Replace KQL exceptions for Query DSL Exceptions (#3505)
* [Rule Tuning] Replace KQL exceptions for Query DSL Exceptions

* update min_stack

* build out schema in more detail for Filters

* Update detection_rules/rule.py

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

* Remove enum for definition

* remove unused import

* remove $state store

* transform state

* add call to super

* add return type hint

* use dataclass metadata

* use Literal type

---------

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
Co-authored-by: Mika Ayenson <Mika.ayenson@elastic.co>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>

Removed changes from:
- rules/windows/collection_mailbox_export_winlog.toml
- rules/windows/collection_posh_clipboard_capture.toml
- rules/windows/defense_evasion_posh_assembly_load.toml
- rules/windows/defense_evasion_posh_compressed.toml
- rules/windows/discovery_posh_suspicious_api_functions.toml
- rules/windows/discovery_privileged_localgroup_membership.toml
- rules/windows/execution_posh_hacktool_functions.toml
- rules/windows/execution_posh_psreflect.toml
- rules_building_block/collection_posh_compression.toml
- rules_building_block/defense_evasion_powershell_clear_logs_script.toml
- rules_building_block/discovery_posh_generic.toml
- rules_building_block/lateral_movement_posh_winrm_activity.toml

(selectively cherry picked from commit 67ca13c1ce)
2024-04-01 20:53:09 +00:00
Susan c1dd8cae21 Update setup guide for ML integration packages (#3475)
* Add more detail to ingest pipeline install

* Add more info to anomaly detection setup

* Update draft

* Fix typo

* Bulk add doc updates

* Update rules/integrations/problemchild/defense_evasion_ml_rare_process_for_a_host.toml

Co-authored-by: Kirti Sodhi <109447885+sodhikirti07@users.noreply.github.com>

* Address Kseniia feedback

* Update updated_date per review feedback

---------

Co-authored-by: Kirti Sodhi <109447885+sodhikirti07@users.noreply.github.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>

(cherry picked from commit 400a84628e)
2024-04-01 19:10:34 +00:00
Terrance DeJesus 57627e562f [Rule Deprecation] Deprecate Remote File Creation on a Sensitive Directory (#3477)
* deprecating

* adjusted matury tag; updated dates

(cherry picked from commit d4bf04256d)
2024-04-01 15:08:51 +00:00
Jonhnathan 5a7d7cf4a0 [New Rules] Potential PowerShell Pass-the-Hash/Relay Script (#3543)
* [New Rules] Potential PowerShell Pass-the-Hash/Relay Script

* Update credential_access_posh_relay_tools.toml

* Update execution_posh_hacktool_functions.toml

* Update credential_access_posh_relay_tools.toml

* Update credential_access_posh_relay_tools.toml

---------

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

(cherry picked from commit 218c3bead6)
2024-03-28 10:16:03 +00:00
Jonhnathan c871bbb6d6 [New Rule] Creation of a DNS-Named Record (#3539)
* [New Rule] Creation of a DNS-Named Record

* Update credential_access_dnsnode_creation.toml

* Update rules/windows/credential_access_dnsnode_creation.toml

(cherry picked from commit 954a93c3b4)
2024-03-27 21:28:37 +00:00
Jonhnathan 06dcbb80f5 [New Rule] Potential ADIDNS Poisoning via Wildcard Record Creation (#3535)
* [New Rule] Potential ADIDNS Poisoning via Wildcard Record Creation

* Update credential_access_adidns_wildcard.toml

---------

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

(cherry picked from commit 67e9ebf8e1)
2024-03-27 13:15:24 +00:00
Samirbous bfd3289680 [New] Suspicious Execution via ScreenConnect (#3541)
* [New] Suspicious Execution via ScreenConnect

- Suspicious ScreenConnect Client Child Process (limited to known suspicious patterns)
- ScreenConnect Server Spawning Suspicious Processes (webshell access via ScreenConnect server)

* Update command_and_control_screenconnect_childproc.toml

* Update rules/windows/initial_access_webshell_screenconnect_server.toml

* Update rules/windows/command_and_control_screenconnect_childproc.toml

* Update rules/windows/command_and_control_screenconnect_childproc.toml

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

* Update command_and_control_screenconnect_childproc.toml

* Update command_and_control_screenconnect_childproc.toml

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>

(cherry picked from commit d7aff43621)
2024-03-27 12:02:12 +00:00
ALEXANDER MA COTE e388aaf409 fix typo in lateral_movement_remote_services.toml (#3538)
(cherry picked from commit 138447221f)
2024-03-27 10:46:36 +00:00
Ruben Groenewoud 75a0a3f338 [Rule Tuning] Scheduled Task Activity via pwsh (#3534)
(cherry picked from commit 760b99bcc1)
2024-03-26 13:53:05 +00:00
Samirbous 5ce96738c4 [New] Suspicious JetBrains TeamCity Child Process (#3532)
* [New] Suspicious JetBrains TeamCity  Child Process

* Update initial_access_exploit_jetbrains_teamcity.toml

* Update initial_access_exploit_jetbrains_teamcity.toml

* Update initial_access_exploit_jetbrains_teamcity.toml

* Update initial_access_exploit_jetbrains_teamcity.toml

(cherry picked from commit fc76a8bcb5)
2024-03-25 16:40:44 +00:00
Jonhnathan b6aff9b2e5 [New Rules] Veeam Credential Access DRs (#3516)
* [New Rules] Veeam Credential Access DRs

* bump

* Update credential_access_veeam_commands.toml

* Update credential_access_veeam_backup_dll_imageload.toml

* Update rules/windows/credential_access_veeam_backup_dll_imageload.toml

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

* Update credential_access_veeam_commands.toml

* Update rules/windows/credential_access_veeam_backup_dll_imageload.toml

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

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@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>

(cherry picked from commit 779fa7710d)
2024-03-21 13:09:29 +00:00
Ruben Groenewoud f0a06bc56b [Rule Tuning] Potential Reverse Shell via UDP (#3508)
(cherry picked from commit a6028b43b3)
2024-03-21 12:56:41 +00:00
Mika Ayenson 88181b0f80 [Rule Tuning] SMTP on Port 26/TCP (#3521)
(cherry picked from commit 07abc19932)
2024-03-19 21:03:05 +00:00
Terrance DeJesus 078c86ab40 [Rule Tuning] Tuning 'First Time Seen AWS Secret Value Accessed in Secrets Manager' (#3494)
* tuning 'First Time Seen AWS Secret Value Accessed in Secrets Manager'

* reverting lookback window

* missing word in description

(cherry picked from commit f6e79944f2)
2024-03-15 23:17:27 +00:00