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1627 Commits

Author SHA1 Message Date
Samirbous e30dc312e4 [Tuning] Potential Execution via XZBackdoor (#4053) 
* Update persistence_suspicious_ssh_execution_xzbackdoor.toml

* Update persistence_suspicious_ssh_execution_xzbackdoor.toml
 2024-09-05 20:13:32 +01:00
Terrance DeJesus be611be8b3 [New Rule] Instance Metadata Service (IMDS) API Requests - Linux (#4005) 
* new rule metadata API requests

* updated description and name

* added Ipv6

* adjusted query

* rule name fix

* changed to EQL; added discovery tactic

* removed timestamp override

* adding host.os.type

* adjusted description

* Update rules/linux/credential_access_unusual_instance_metadata_service_api_request.toml

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

* Update rules/linux/credential_access_unusual_instance_metadata_service_api_request.toml

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

* adjusted query

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
 2024-09-05 10:08:32 -04:00
Ruben Groenewoud 9f964b68a4 [New Rule] Root Certificate Installation (#4025) 
* [New Rule] Root Certificate Installation

* Update defense_evasion_root_certificate_installation.toml

* Update rules/linux/defense_evasion_root_certificate_installation.toml
 2024-09-03 17:40:17 +02:00
Ruben Groenewoud b3a75899d5 [New Rule] SELinux Configuration Creation or Modification (#4024) 
* [New Rule] SELinux Configuration Creation or Modification

* Update rules/linux/defense_evasion_selinux_configuration_creation_modification.toml

* Rename defense_evasion_selinux_configuration_creation_modification.toml to defense_evasion_selinux_configuration_creation_or_renaming.toml

* Update rules/linux/defense_evasion_selinux_configuration_creation_or_renaming.toml

* Update rules/linux/defense_evasion_selinux_configuration_creation_or_renaming.toml
 2024-09-01 10:14:59 +02:00
Ruben Groenewoud fb07033159 [New Rule] Attempt to Disable Auditd Service (#4028) 
* [New Rule] Attempt to Disable Auditd Service

* Update defense_evasion_attempt_to_disable_auditd_service.toml

* Update rules/linux/defense_evasion_attempt_to_disable_auditd_service.toml

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

---------

Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
 2024-09-01 09:51:13 +02:00
Ruben Groenewoud 30cd1b6a00 [New Rule] Potential Defense Evasion via Doas (#4027) 
* [New Rule] Potential Defense Evasion via Doas

* Update rules/linux/defense_evasion_doas_configuration_creation_or_modification.toml

* Update rules/linux/defense_evasion_doas_configuration_creation_or_modification.toml

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

* Rename defense_evasion_doas_configuration_creation_or_modification.toml to defense_evasion_doas_configuration_creation_or_rename.toml

---------

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
 2024-08-29 21:19:13 +02:00
Ruben Groenewoud 19b4a4d7dd [New Rule] SSL Certificate Deletion (#4026) 
* [New Rule] SSL Certificate Deletion

* Update defense_evasion_ssl_certificate_deletion.toml

* Update rules/linux/defense_evasion_ssl_certificate_deletion.toml
 2024-08-29 21:10:59 +02:00
Terrance DeJesus 1ff26cf53e [New Rule] New Rules AWS Multi-Region Discovery of EC2 Instances and Quotas (#4015) 
* new rules AWS EC2 discovery in multiple-regions

* adjusted query and from window

* added event providers, adjusted tags, changed file name
 2024-08-28 13:42:32 -04:00
Samirbous 3e831b82c3 Update credential_access_suspicious_web_browser_sensitive_file_access.toml (#4029) 
Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
 2024-08-28 16:33:44 +01:00
Terrance DeJesus 6aaccc64a6 [New Rule] AWS CLI Command with Custom Endpoint URL (#4002) 
* new rule AWS CLI COmmand with Custom Endpoint URL

* fixed query

* added host os type

* added timestamp override
 2024-08-28 09:58:08 -04:00
Jonhnathan e60c21b37b [Rule Tuning] Enumeration of Privileged Local Groups Membership (#4016) 2024-08-27 09:54:19 -03:00
Jonhnathan 70c3a6f7b1 [Rule Tuning] Potential privilege escalation via CVE-2022-38028 (#4004) 2024-08-22 15:32:28 -03:00
Ruben Groenewoud 162a48c97f [New Rule] Openssl Client or Server Activity (#3930) 
* [New Rule] Openssl Client or Server Activity

* Endgame support

* Added one exclusion

* Update execution_shell_openssl_client_or_server.toml

* Update execution_shell_openssl_client_or_server.toml

---------

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
Co-authored-by: shashank-elastic <91139415+shashank-elastic@users.noreply.github.com>
 2024-08-22 16:53:31 +02:00
Kirti Sodhi dfbf86e853 Update ProblemChild detection rules with High and Low probability (#4000) 
* Updated ProblemChild detection rules
 2024-08-22 09:17:41 -04:00
Terrance DeJesus b6b6f6b482 [New Rule] First Occurrence AWS STS Temporary Credential Request by User (#3991) 
* adding new rule 'First Occurrence of STS GetFederationToken Request by User'

* added integration tag

* Update rules/integrations/aws/defense_evasion_sts_get_federation_token.toml

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

* added reference

---------

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
 2024-08-21 20:17:10 -04:00
Terrance DeJesus 5493165440 [New Rule] AWS Signin Single Factor Console Login via Federated Session (#3992) 
* adding new rule 'AWS Signin Single Factor Console Login with Federated User'

* changed uuid

* added integration tag

* fixed mitre mapping

* added min-stack

* Update rules/integrations/aws/initial_access_signin_console_login_no_mfa.toml

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

* added reference

* Update rules/integrations/aws/initial_access_signin_console_login_no_mfa.toml

---------

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
 2024-08-21 18:19:54 -04:00
Terrance DeJesus 2559b7bb41 [Rule Tuning] Tuning AWS Rules for SAML Provider Updates and Assumed Roles via STS (#3898) 
* tuning AWS rules for SAML provider updates and assumed roles via STS

* fixed mitre mapping

* adjusted new terms and added user ID to query

* reverting new terms value change

* adding non-ecs to new term checks

* fixing mitre mapping

* Update rules/integrations/aws/privilege_escalation_sts_temp_creds_via_assume_role.toml

* reverting file removal to add diff changes

* changeing rule contents

* reverting rule changes

* added rule contents

* changed file name

* linted

* reverting lint
 2024-08-20 11:53:46 -04:00
Jonhnathan 4c44f98cd6 [Rule Tuning] LSASS Process Access via Windows API (#3975) 
* [Rule Tuning] LSASS Process Access via Windows API

* Update credential_access_lsass_openprocess_api.toml

* Update credential_access_lsass_openprocess_api.toml
 2024-08-14 11:42:18 -03:00
Terrance DeJesus 3500c3db15 [Rule Tuning] Tuning Direct Outbound SMB Connection (#3485) 
* tuning 'Direct Outbound SMB Connection'

* removed lolbas references

* reverted EQL function due to escaped characters in substring match

* Update rules/windows/lateral_movement_direct_outbound_smb_connection.toml

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

* Update rules/windows/lateral_movement_direct_outbound_smb_connection.toml

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

* reverted internal address exclusion; adjusted rule name and description

* removing min-stack

* Update rules/windows/lateral_movement_direct_outbound_smb_connection.toml

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

---------

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
 2024-08-13 13:53:07 -04:00
Terrance DeJesus 74d8186aeb [Rule Tuning] Tuning MsBuild Making Network Connections (#3482) 
* tuning 'MsBuild Making Network Connections'

* added performance note; added comments in query

* adjusted array search

* linting

* updated query logic;updated date

* updated query logic

* fixed query error

* changed query logic

* removing min-stack

* reverting change

* updated network sequence event
 2024-08-13 12:55:08 -04:00
Ruben Groenewoud c58ae92dd1 [New Rule] Dynamic Linker Creation or Modification (#3969) 
* [New Rule] Dynamic Linker Creation or Modification

* Removed new line from description

* Update rules/linux/defense_evasion_dynamic_linker_file_creation.toml

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

* Update defense_evasion_dynamic_linker_file_creation.toml

---------

Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
 2024-08-10 10:25:55 +02:00
Ruben Groenewoud 55e81c1169 [Rule Tuning] Attempt to Disable IPTables or Firewall (#3972) 
Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
 2024-08-10 10:18:11 +02:00
Ruben Groenewoud b6ffb10ab2 [Rule Tuning] System Log File Deletion (#3970) 2024-08-10 10:04:56 +02:00
Ruben Groenewoud 6e3e5f6373 [Rule Tuning] Potential Disabling of AppArmor (#3971) 
* [Rule Tuning] Potential Disabling of AppArmor

* Update query

---------

Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
 2024-08-10 09:51:45 +02:00
Jonhnathan 8950d33539 [Rule Tuning] Suspicious PrintSpooler Service Executable File Creation (#3964) 
* [Rule Tuning] Suspicious PrintSpooler Service Executable File Creation

* .

* ++
 2024-08-09 13:23:16 -03:00
Jonhnathan 20f4242566 [Rule Tuning] Simple KQL to EQL Conversion (#3948) 
* [Rule Tuning] Simple KQL to EQL Conversion

* Update rules/windows/persistence_msds_alloweddelegateto_krbtgt.toml

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

* Update privilege_escalation_group_policy_iniscript.toml

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
 2024-08-09 13:11:27 -03:00
Jonhnathan fcc8aaaf63 [Rule Tuning] Fix missing Winlogbeat index (#3976) 
* [Rule Tuning] Fix missing Winlogbeat index

* bump
 2024-08-09 12:46:33 -03:00
Jonhnathan 207dc55ede [Rule Tuning] Windows File-based Rules Tuning (#3963) 
* [Rule Tuning] Windows File-based Rules Tuning

* Update credential_access_lsass_memdump_file_created.toml

* .
 2024-08-09 12:26:58 -03:00
Jonhnathan f5069763b6 [Rule Tuning] Add System tag to DRs (#3968) 
* [Rule Tuning] Add System tag to DRs

* bump
 2024-08-09 11:14:33 -03:00
Terrance DeJesus 698e830f9f [Rule Tuning] Removing Minimum Stack Compatibility (#3974) 
* removing min-stack

* removing min-stack

* updating date
 2024-08-08 11:47:48 -04:00
Terrance DeJesus fe9ba15a2a [Rule Tuning] Tuning Suspicious HTML File Creation for Performance (#3480) 
* tuning 'Suspicious HTML File Creation'

* TOML lint; reverted EQL function checks

* updated date
 2024-08-08 11:12:55 -04:00
Jonhnathan 25ad765acb [Rule Tuning] Include winlogbeat index in sysmon-related rules (#3966) 2024-08-08 12:02:23 -03:00
Terrance DeJesus ff3d51721a [Rule Tuning] Tuning Persistent Scripts in the Startup Directory (#3479) 
* tuning 'Persistent Scripts in the Startup Directory'

* adjusted query logic; added note about performance

* adjusted query logic

* adjusted query logic; added note about performance

* removed newline

* adjusted query logic to be more inclusive

* adjusted query

* adjusted query to leave wildcard and substring searches towards the end

* TOML lint

* Update rules/windows/persistence_startup_folder_scripts.toml

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

* adjusted note; removed setup

* adjusted note; removed setup

* Update rules/windows/persistence_startup_folder_scripts.toml

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

* Update rules/windows/persistence_startup_folder_scripts.toml

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

* updated date

---------

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
Co-authored-by: shashank-elastic <91139415+shashank-elastic@users.noreply.github.com>
 2024-08-06 18:42:53 -04:00
shashank-elastic 2ee5ae1f19 Fix Version Bump for Related Integrations (#3960) 2024-08-06 18:48:24 +05:30
Jonhnathan a6f1aa6fd7 [Rule Tuning] Windows Registry Rules Tuning - 2 (#3958) 2024-08-06 17:15:08 +05:30
Jonhnathan 9b85079da1 [Rule Tuning] Windows Registry Rules Tuning - 1 (#3957) 2024-08-06 17:05:17 +05:30
Jonhnathan 11636b159d [New Rule] Outlook Home Page Registry Modification (#3946) 2024-08-05 11:27:58 -03:00
Jonhnathan fbaac66f9f [Rule Tuning] Accepted Default Telnet Port Connection (#3954) 
Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
 2024-08-03 20:15:06 -03:00
Jonhnathan 392e813e7a [Rule Tuning] Microsoft IIS Service Account Password Dumped (#3935) 2024-08-02 16:37:45 -03:00
Ruben Groenewoud 93d928625d [Tuning] Executable Bit Set for Potential Persistence Script (#3929) 2024-08-02 21:13:19 +02:00
Jonhnathan ff3f66cacf [Rule Tuning] AWS S3 Object Versioning Suspended (#3953) 2024-08-02 13:36:11 -03:00
Jonhnathan dfdc214be8 [New Rule] Potential Relay Attack against a Domain Controller (#3928) 
* [New Rule] Potential Relay Attack against a Domain Controller

* Update credential_access_dollar_account_relay.toml

* Move to the correct folder
 2024-08-02 13:03:20 -03:00
Jonhnathan 8d3ec2b8a3 [Rule Tuning] Sensitive Registry Hive Access via RegBack (#3947) 
Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
 2024-08-01 14:06:08 -03:00
Ruben Groenewoud 485312d5f2 [Rule Tuning] System Binary Moved or Copied (#3933) 2024-08-01 18:47:58 +02:00
Isai 62982f9d8c [New Rule] AWS IAM CompromisedKeyQuarantine Policy Attached to User (#3910) 
* [New Rule] AWS IAM CompromisedKeyQuarantine Policy Attached to User

* increased severity score

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

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
 2024-08-01 00:30:02 -04:00
Isai f2eb78219c [New Rule] AWS IAM User or Role Created Cloudformation Stack for First Time (#3923) 
* [New Rule] AWS IAM User or Role Created Cloudformation Stack for First Time

* Update discovery_new_terms_sts_getcalleridentity.toml

* Update execution_new_terms_ec2_instance_cloudformation_createstack.toml

* Update rules/integrations/aws/execution_new_terms_ec2_instance_cloudformation_createstack.toml

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

* rule name change, removed ec2

* Update rules/integrations/aws/execution_new_terms_cloudformation_createstack.toml

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@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>
 2024-07-31 16:55:49 -04:00
Isai 1b58d0640b [New Rule] AWS EC2 Instance Console Login via Assumed Role (#3922) 
* [New Rule] AWS EC2 Instance Console Login via Assumed Role

* added reference for custom url creation

* added STS tag

* added event.provider to query

---------

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2024-07-31 15:52:59 -04:00
Isai a28af59d02 [New Rule] AWS EC2 Instance Interaction with IAM Service (#3920) 
* [New Rule] AWS EC2 Instance Interaction with IAM Service

* Update rules/integrations/aws/persistence_ec2_instance_request_to_iam_service.toml

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

---------

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2024-07-31 15:44:02 -04:00
Jonhnathan 65cacb4960 [New Rule] Potential Active Directory Replication User Backdoor (#3014) 
* [New Rule] Potential Active Directory Replication User Backdoor

* Update credential_access_dcsync_user_backdoor.toml

* Update rules/windows/credential_access_dcsync_user_backdoor.toml

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

* Update rules/windows/credential_access_dcsync_user_backdoor.toml

* Update rules/windows/credential_access_dcsync_user_backdoor.toml

---------

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
 2024-07-31 12:02:34 -03:00
Ruben Groenewoud 134b842361 [Rule Tuning] Removed Endgame from Incompatible Rules (#3931) 
* [Rule Tuning] Removed Endgame from Incompatible Rules

* ++
 2024-07-31 09:26:38 +02:00