security-tools/sigma-rules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
2,404 Commits 1 Branch 0 Tags
92fe46b8ffe7a7c346a5e2df7ca6df84b1aa8d0a
Commit Graph

355 Commits

Author SHA1 Message Date
Ruben Groenewoud 9e4fce6586 [Rule Tuning] Potential Linux Hack Tool Launched (#4191) 2024-10-25 17:23:48 +02:00
Ruben Groenewoud b0bba39007 [Rule Tuning] Linux User Added to Privileged Group (#4206) 2024-10-25 14:21:20 +02:00
Terrance DeJesus d0225c37df [Rule Tuning] Tuning 'Unusual Instance Metadata Service (IMDS) API Request' (#4169) 
* tuning 'Unusual Instance Metadata Service (IMDS) API Request'

* added missing bracket

* linted

* Update rules/linux/credential_access_unusual_instance_metadata_service_api_request.toml

* removed intelephense whitelisting

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
 2024-10-18 11:50:57 -04:00
Ruben Groenewoud 42f6c8f9a5 [Rule Tuning] Q2 Linux DR Tuning - Part 4 (#4165) 2024-10-18 17:13:44 +02:00
Ruben Groenewoud b309bcb7ae [Rule Tuning] Q2 Linux DR Tuning - Part 5 (#4166) 
* [Rule Tuning] Q2 Linux DR Tuning - Part 5

* Update persistence_suspicious_ssh_execution_xzbackdoor.toml

* Update persistence_rpm_package_installation_from_unusual_parent.toml
 2024-10-18 17:02:26 +02:00
Ruben Groenewoud 601254488b [BBR Promotion] Q2 Linux BBR Promotion (#4172) 
* [BBR Promotion] Q2 Linux BBR Promotion

* Update collection_linux_clipboard_activity.toml

* Update defense_evasion_creation_of_hidden_files_directories.toml
 2024-10-18 16:55:09 +02:00
Ruben Groenewoud ac6a49eeea [Rule Tuning] Q2 Linux DR Tuning - Part 6 (#4167) 2024-10-18 16:25:54 +02:00
Ruben Groenewoud 39fc23cb3d [Rule Tuning] Q2 Linux DR Tuning - Part 3 (#4164) 
* [Rule Tuning] Q2 Linux DR Tuning - Part 3

* Update execution_suspicious_executable_running_system_commands.toml
 2024-10-18 16:18:14 +02:00
Ruben Groenewoud 3982228132 [Rule Tuning] Q2 Linux DR Tuning - Part 2 (#4163) 2024-10-18 16:07:09 +02:00
Ruben Groenewoud af9f9e2456 [Rule Tuning] Q2 Linux DR Tuning - Part 1 (#4162) 
* [Rule Tuning] Q2 Linux DR Tuning - Part 1

* Update defense_evasion_binary_copied_to_suspicious_directory.toml
 2024-10-18 15:59:51 +02:00
Ruben Groenewoud 5b41bbd5e9 [Tuning] Updated references (#4114) 2024-10-01 08:43:14 -03:00
Ruben Groenewoud a3e89a7fab [New Rules] CVE-2024-x.x.x.x.x (CUPS/Foomatic-RIP RCE) (#4106) 
* [New Rules] CVE-2024-x.x.x.x.x (CUPS/Foomatic-RIP RCE)

* Description update

* Investigation Guide Update
 2024-09-27 14:48:03 +02:00
Mika Ayenson b80d8342d6 [Docs | Rule Tuning] Add blog references to rules (#4097) 
* [Docs | Rule Tuning] Add blog references to rules

* Apply suggestions from code review

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

* Apply suggestions from code review

* Update google_workspace blog references

* add okta blog references

* Update dates

---------

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
 2024-09-25 15:19:20 -05:00
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 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
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
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
Ruben Groenewoud 93d928625d [Tuning] Executable Bit Set for Potential Persistence Script (#3929) 2024-08-02 21:13:19 +02:00
Ruben Groenewoud 485312d5f2 [Rule Tuning] System Binary Moved or Copied (#3933) 2024-08-01 18:47:58 +02:00
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
shashank-elastic f3b0dc1954 Prep for next release 8.16 (#3919) 2024-07-24 11:19:56 -04:00
eric-forte-elastic baee89de9b Revert "Prep for next release 8.16 (#3914)" 
This reverts commit 4245a815d2.
 2024-07-23 14:06:04 -04:00
shashank-elastic 4245a815d2 Prep for next release 8.16 (#3914) 
* Prep for Release 8.16

* Add subscription

* Remove double subscription

* Formatting

* Formatting

* Revert Beaconing rules minstack and lock version
 2024-07-23 13:04:03 -04:00
Mika Ayenson 03c99d22d3 Revert "Prep for Release 8.16 (#3913)" 
This reverts commit 01135085f6.
 2024-07-23 09:50:04 -05:00
shashank-elastic 01135085f6 Prep for Release 8.16 (#3913) 2024-07-23 09:42:26 -05:00
Ruben Groenewoud a71bbe0cf8 [Rule Tuning] Misc. DR Rule Tuning - Part 2 (#3905) 
* [Rule Tuning] Misc. DR Rule Tuning - Part 2

* ++

* Update privilege_escalation_suspicious_uid_guid_elevation.toml

* Update rules/linux/persistence_systemd_service_creation.toml

---------

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
 2024-07-19 15:21:35 +02:00
Ruben Groenewoud 76fdd549a3 [Rule Tuning] Misc. DR Rule Tuning (#3904) 
* [Rule Tuning] Misc. DR Rule Tuning

* Update execution_unknown_rwx_mem_region_binary_executed.toml

* Update command_and_control_suspicious_network_activity_from_unknown_executable.toml

* I love KQL validation
 2024-07-19 15:13:42 +02:00
Ruben Groenewoud 39350847d6 [New Rules] Git Hook execution/netcon (#3896) 
* [New Rules] Git Hook execution/netcon

* TImestamp formatting change

* Update rules/linux/persistence_git_hook_netcon.toml

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

---------

Co-authored-by: shashank-elastic <91139415+shashank-elastic@users.noreply.github.com>
Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
 2024-07-17 15:28:37 +02:00
Ruben Groenewoud 83d6eeb844 [New Rule] RPM Package Installed by Unusual Parent Process (#3882) 
* [New Rule] RPM Package Installed by Unusual Parent Process

* Update persistence_rpm_package_installation_from_unusual_parent.toml

* Update persistence_rpm_package_installation_from_unusual_parent.toml
 2024-07-17 15:12:17 +02:00
Ruben Groenewoud 8c5910b1a6 [New Rule] Unsafe Docker Container Creation (#3884) 
* [New Rule] Unsafe Docker Container Creation

* Update execution_potentially_overly_permissive_container_creation.toml

* Update execution_potentially_overly_permissive_container_creation.toml

* Update execution_potentially_overly_permissive_container_creation.toml
 2024-07-17 15:03:07 +02:00
Ruben Groenewoud e5d08a2c38 [Rule Tuning] Updated setup guide (#3885) 
* [Rule Tuning] Updated setup guide

* Update persistence_user_or_group_creation_or_modification.toml

* Update rules/linux/persistence_user_or_group_creation_or_modification.toml

Co-authored-by: shashank-elastic <91139415+shashank-elastic@users.noreply.github.com>

* Update rules/linux/persistence_user_or_group_creation_or_modification.toml

---------

Co-authored-by: shashank-elastic <91139415+shashank-elastic@users.noreply.github.com>
 2024-07-17 14:39:38 +02:00
Ruben Groenewoud 56e8e059b6 [New Rules] Docker Entrypoint Netcon / Nsenter Escape (#3883) 
* [New Rules] Docker entrypoint netcon / nsenter escape

* ++

* Update privilege_escalation_docker_escape_via_nsenter.toml

* Update privilege_escalation_docker_escape_via_nsenter.toml

* Better description formatting

* Update execution_egress_connection_from_entrypoint_in_container.toml

* Update privilege_escalation_docker_escape_via_nsenter.toml
 2024-07-15 13:07:36 +02:00
Ruben Groenewoud 82a0cc80a7 [New Rules] DPKG Execution/Installation (#3879) 
* [New Rules] DPKG Execution/Installation

* Update rules/linux/persistence_dpkg_package_installation_from_unusual_parent.toml

* Update persistence_dpkg_package_installation_from_unusual_parent.toml

* Update persistence_dpkg_unusual_execution.toml

* Update persistence_dpkg_unusual_execution.toml
 2024-07-15 12:59:03 +02:00
Ruben Groenewoud 21485b16fa [Tuning & Changes] Misc rule/hunt tuning (#3875) 
* [Tuning & Changes] Misc rule/hunt tuning

* Bump update_date

* ++

* Updated docs
 2024-07-11 14:55:33 +02:00
Joe Desimone 6a2f5e7138 [Bug] Persistence ssh key generation index pattern (#3873) 
* fix persistence_ssh_key_generation.toml

* Update persistence_ssh_key_generation.toml

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
 2024-07-08 10:27:52 -03:00
Ruben Groenewoud 64f0e258cb [New Rule] Linux Shadow File Modification (#3737) 
* [New Rule] Linux User Account Password Change

* Update rules/linux/persistence_user_password_change.toml

* Update persistence_user_password_change.toml

* Update persistence_user_password_change.toml

* Update persistence_user_password_change.toml

---------

Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
 2024-07-05 10:03:24 +02:00
Ruben Groenewoud b311d49c2a [New Rules] Git Hook Execution/File Creation (#3832) 
* [New Rules] Git Hook Execution/File Creation

* Update rules/linux/persistence_git_hook_file_creation.toml

* Update persistence_git_hook_process_execution.toml
 2024-06-28 11:34:32 +02:00
Ruben Groenewoud f33c25b118 [New Rule] DNF Package Manager Plugin File Creation (#3822) 
* [New Rule] DNF Package Manager Plugin File Creation

* Update persistence_dnf_package_manager_plugin_file_creation.toml
 2024-06-28 11:14:48 +02:00
Ruben Groenewoud edc501accf [New Rules] rc.local Execution Rules (#3813) 
* [New Rules] rc.local Execution Rules

* ++

* Update rules/linux/persistence_rc_local_error_via_syslog.toml

---------

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
 2024-06-28 09:59:26 +02:00
Ruben Groenewoud cd4fe07c2c [New Rule & Tuning] Systemd Generator Created (#3801) 2024-06-27 22:00:48 +02:00
Ruben Groenewoud e941645b2f [Rule Tuning] rc.local/rc.common File Creation (#3805) 2024-06-27 21:50:49 +02:00