security-tools/sigma-rules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
2,555 Commits 1 Branch 0 Tags
7be96ec64dc12ed3d2849bb408e4eecfde40dc02
Commit Graph

1807 Commits

Author SHA1 Message Date
Terrance DeJesus 7be96ec64d [Rule Tuning] Add Public Snapshot Coverage Regarding AWS EC2 EBS Snapshot Shared or Made Public (#4335) 
* removing detection gap for EBS snapshots that are made public

* reverted logic; added investigation note about public snapshots
 2025-01-20 13:15:41 -05:00
Ruben Groenewoud cf183579b4 [New Rule] Polkit Version Discovery (#4378) 2025-01-20 15:58:27 +01:00
Ruben Groenewoud 2e6ec33141 [New Rule] Polkit Policy Creation (#4379) 
* [New Rule] Polkit Policy Creation

* Update persistence_polkit_policy_creation.toml
 2025-01-20 15:47:18 +01:00
Ruben Groenewoud 3e655abfef [New Rule] Unusual Pkexec Execution (#4380) 
* [New Rule] Unusual Pkexec Execution

* Update execution_unusual_pkexec_execution.toml
 2025-01-20 15:35:29 +01:00
Ruben Groenewoud 4294ed8981 [New Rule] NetworkManager Dispatcher Script Creation (#4381) 
* [New Rule] NetworkManager Dispatcher Script Creation

* ++
 2025-01-20 15:18:55 +01:00
Ruben Groenewoud 89c113560b [New Rule] D-Bus Service Created (#4382) 2025-01-20 15:07:06 +01:00
Ruben Groenewoud 6cc5184f70 [New Rule] Manual Dracut Execution (#4383) 2025-01-20 14:41:44 +01:00
Ruben Groenewoud abd199a9bc [New Rule] Dracut Module Creation (#4384) 2025-01-20 14:31:16 +01:00
Ruben Groenewoud 2bb46899ae [New Rule] OpenSSL Password Hash Generation (#4385) 
* [New Rule] OpenSSL Password Hash Generation

* Update rules/linux/persistence_openssl_passwd_hash_generation.toml
 2025-01-20 14:14:12 +01:00
Ruben Groenewoud 1fce3fd22a [New Rule] Boot File Copy (#4386) 
* [New Rule] Boot File Copy

* Update persistence_boot_file_copy.toml

* Update rules/linux/persistence_boot_file_copy.toml
 2025-01-20 14:04:02 +01:00
Ruben Groenewoud b633987e5b [New Rule] Initramfs Unpacking via unmkinitramfs (#4387) 
* [New Rule] Initramfs Unpacking via unmkinitramfs

* Update rules/linux/persistence_unpack_initramfs_via_unmkinitramfs.toml
 2025-01-20 13:43:54 +01:00
Ruben Groenewoud 971049957e [New Rule] Initramfs Extraction via CPIO (#4389) 
* [New Rule] Initramfs Extraction via CPIO

* Update rules/linux/persistence_extract_initramfs_via_cpio.toml
 2025-01-20 13:32:48 +01:00
Samirbous 1dfc84c37d [Tuning] Powershell Rules (#4395) 
* [Tuning] Powershell Rules

few complementary tuning to add some extra patterns.

* Update defense_evasion_amsi_bypass_powershell.toml

---------

Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
 2025-01-20 12:12:37 +00:00
Ruben Groenewoud 01eda44298 [Rule Tuning] Linux Persistence Rules (#4393) 
* [Rule Tuning] Linux Persistence Rules

* Update persistence_suspicious_file_modifications.toml

* Update rules/linux/persistence_potential_persistence_script_executable_bit_set.toml
 2025-01-20 09:51:49 +01:00
Ruben Groenewoud cf929554a6 [New Rule] Systemd Shell Execution During Boot (#4392) 2025-01-20 09:33:46 +01:00
Ruben Groenewoud f029e9a171 [New Rule] GRUB Configuration Generation through Built-in Utilities (#4391) 2025-01-17 18:00:01 +01:00
Ruben Groenewoud 0ef7f3a83e [New Rule] GRUB Configuration File Creation (#4390) 
* [New Rule] Grub Configuration File Creation

* Update persistence_grub_configuration_creation.toml
 2025-01-17 17:49:41 +01:00
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