Commit Graph

23 Commits

Author SHA1 Message Date
github-actions[bot] e7ebb45ae0 Lock versions for releases: 7.13,7.14,7.15,7.16,8.0,8.1,8.2 (#1929)
* Locked versions for releases: 7.13,7.14,7.15,7.16,8.0,8.1,8.2

* Update deprecated_rules.json

Added whitespace to trigger build.

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

(cherry picked from commit 187c7a461d)
2022-04-14 21:31:50 +00:00
Jonhnathan d3aa90f6a8 [Rule Tuning] Remove logs-windows.* index (#1928)
* Remove `logs-windows.*` index

* Update discovery_privileged_localgroup_membership.toml

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

(cherry picked from commit 0943ffba5f)
2022-04-14 12:27:47 +00:00
Jonhnathan 2889bf7d4e MInor changes from Investigation Guides Review (#1927)
(cherry picked from commit 258418785f)
2022-04-14 00:55:20 +00:00
Mika Ayenson 10bc32b9aa remove min_stack_version so old versions get config note (#1926) 2022-04-13 16:13:27 -04:00
Justin Ibarra 3adff3c865 Revert "Lock versions for releases: 7.13,7.14,7.15,7.16,8.0,8.1,8.2 (#1922)" (#1925)
This reverts commit 8789c15ae6.

(cherry picked from commit 53673c0c49)
2022-04-13 07:07:55 +00:00
github-actions[bot] 3b4db7e47a Lock versions for releases: 7.13,7.14,7.15,7.16,8.0,8.1,8.2 (#1922)
(cherry picked from commit 8789c15ae6)
2022-04-13 06:31:52 +00:00
Jonhnathan c3ab31632f [Security Content] Current Investigation Guides Review (#1896)
* Modify investigation guides

* Apply suggestions from code review

Co-authored-by: benironside <91905639+benironside@users.noreply.github.com>

* Update rules/windows/credential_access_symbolic_link_to_shadow_copy_created.toml

Co-authored-by: benironside <91905639+benironside@users.noreply.github.com>

* Rewrite and apply previous reviews

* Apply suggestions from code review

Co-authored-by: Joe Peeples <joe.peeples@elastic.co>

* Update rules/windows/credential_access_spn_attribute_modified.toml

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

Co-authored-by: benironside <91905639+benironside@users.noreply.github.com>
Co-authored-by: Joe Peeples <joe.peeples@elastic.co>
Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>

(cherry picked from commit ebeb270075)
2022-04-13 01:07:09 +00:00
Jonhnathan 03677ca4e8 [Security Content] Add Investigation Guides - 5 (#1895)
* [Security Content] Add Investigation Guides - 5

Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>

(cherry picked from commit 46f5af436e)
2022-04-13 00:15:04 +00:00
Jonhnathan 7fdf870d31 [Security Content] Add Investigation Guides - 3 (#1836)
* [Security Content] Add Investigation Guides - 3
* Adjust Investigation Guides and Config
* Adjust Config

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
Co-authored-by: benironside <91905639+benironside@users.noreply.github.com>

(cherry picked from commit 3a5fceac3b)
2022-04-13 00:00:52 +00:00
Justin Ibarra a911907422 Remove deprecated elasticsearch parameter (#1913)
(cherry picked from commit b3e789a202)
2022-04-12 20:08:06 +00:00
Jonhnathan deed08b896 Update discovery_net_command_system_account.toml (#1912)
(cherry picked from commit 3b6c594a22)
2022-04-11 18:05:59 +00:00
Isai dfa41821ef [Rule Tuning] AWS RDS Instance/Cluster Deletion (#1916)
* add RDS instance deletion to aws rule

I've added to this rule to improve coverage. Currently we detect creation and stopping of RDS clusters and instances. But, we only detect for the deletion of clusters, not instances. This adds the deletion of RDS instances to the detection.

* Update rules/integrations/aws/impact_rds_instance_cluster_deletion.toml

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

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

(cherry picked from commit 9640ecb3fe)
2022-04-10 19:35:26 +00:00
Jonhnathan 3c503f7c95 [Security Content] Add Investigation Guides - 4 (#1871)
* [Security Content] Add Investigation Guides - 4

* Apply suggestions from code review

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

* Update rules/windows/initial_access_script_executing_powershell.toml

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

* lint

* Update persistence_user_account_creation.toml

* Apply suggestions from code review

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

* Apply suggestions from code review

Co-authored-by: benironside <91905639+benironside@users.noreply.github.com>
Co-authored-by: Joe Peeples <joe.peeples@elastic.co>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>

* .

* Fixes and lint

* .

* .

* revert modifications

* Apply suggestions from code review

Co-authored-by: Joe Peeples <joe.peeples@elastic.co>
Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>

* Update impact_stop_process_service_threshold.toml

Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
Co-authored-by: benironside <91905639+benironside@users.noreply.github.com>
Co-authored-by: Joe Peeples <joe.peeples@elastic.co>
Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>

(cherry picked from commit 290763d9bb)
2022-04-10 18:38:57 +00:00
Isai b3e51520c4 [Rule Tuning] AWS Security Group Configuration Change Detection (#1915)
* Update persistence_ec2_security_group_configuration_change_detection

Rule does not trigger as expected due to 'iam' provider. I changed the specified provider to 'ec2'.

* update to improve rule coverage

I edited this rule to include the deletion of an RDS Instance. This fills a current gap in coverage as we are able to detect the creation and stopping of RDS instances and clusters, but only detect deletion of RDS clusters.

* Revert "update to improve rule coverage"

This reverts commit b3b094274fe13c56908aa6781c8236de6e3b5380.

(cherry picked from commit 5073ef8be7)
2022-04-07 18:49:16 +00:00
Justin Ibarra bd5ada51e3 Update elasticsearch dependency to 8.1 (#1911)
(cherry picked from commit ad99c6b489)
2022-04-06 19:54:26 +00:00
Jonhnathan c425d98de1 [Rule Tuning] Add EQL optional field syntax (#1910)
* Add optional EQL syntax

* Add min_stack_version

(cherry picked from commit 49074ddeaa)
2022-04-05 19:35:15 +00:00
Justin Ibarra eeb8ab7744 Expand timestamp override tests (#1907)
* Expand timestamp_override tests
* removed timestamp_override from eql sequence rules
* add config entry for eql rules with beats index and t_o
* add timestamp_override to missing fields

Removed changes from:
- rules/cross-platform/impact_hosts_file_modified.toml
- rules/windows/credential_access_lsass_memdump_file_created.toml
- rules/windows/defense_evasion_adding_the_hidden_file_attribute_with_via_attribexe.toml
- rules/windows/defense_evasion_execution_lolbas_wuauclt.toml
- rules/windows/defense_evasion_suspicious_certutil_commands.toml
- rules/windows/execution_command_shell_started_by_svchost.toml

(selectively cherry picked from commit 6bdfddac8e)
2022-04-01 23:28:54 +00:00
Terrance DeJesus 2edb1e0ee7 Prep for Creation of 8.3 Branch (#1906)
* updating with changes for 8.3 prep
* adding updates
* adjusted version in packages.yml

Removed changes from:
- etc/packages.yml

(selectively cherry picked from commit 648daf1237)
2022-04-01 21:35:14 +00:00
Terrance DeJesus 1ca68f9d85 added comprehensive timeline template definitions (#1905)
(cherry picked from commit e72031a71a)
2022-04-01 16:53:55 +00:00
Jonhnathan 8d322f40c0 Svchost spawning Cmd - False Positives Tuning (#1894)
(cherry picked from commit e1b4a0d87c)
2022-03-31 22:30:43 +00:00
Jonhnathan 4ed2fbe932 [Security Content] Adjust Investigation Guides to be less generic (#1805)
* PowerShell Suspicious Script with Audio Capture Capabilities

* PowerShell Keylogging Script

* PowerShell MiniDump Script

* Potential Process Injection via PowerShell

* PowerShell Suspicious Discovery Related Windows API Functions

* Suspicious Portable Executable Encoded in Powershell Script

* PowerShell PSReflect Script

* Startup/Logon Script added to Group Policy Object

* Group Policy Abuse for Privilege Addition

* Scheduled Task Execution at Scale via GPO

* Apply suggestions from code review

Co-authored-by: benironside <91905639+benironside@users.noreply.github.com>
Co-authored-by: Joe Peeples <joe.peeples@elastic.co>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>

* Apply suggestions from code review

Co-authored-by: nastasha-solomon <79124755+nastasha-solomon@users.noreply.github.com>
Co-authored-by: benironside <91905639+benironside@users.noreply.github.com>

* Adjust Posh desc

* .

* Apply suggestions from code review

Co-authored-by: nastasha-solomon <79124755+nastasha-solomon@users.noreply.github.com>

* .

* Apply suggestions from code review

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

* Update privilege_escalation_group_policy_scheduled_task.toml

* Update rules/windows/privilege_escalation_group_policy_iniscript.toml

Co-authored-by: Joe Peeples <joe.peeples@elastic.co>

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: benironside <91905639+benironside@users.noreply.github.com>
Co-authored-by: Joe Peeples <joe.peeples@elastic.co>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
Co-authored-by: nastasha-solomon <79124755+nastasha-solomon@users.noreply.github.com>
Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>

(cherry picked from commit 8a59b49fea)
2022-03-31 14:31:43 +00:00
Jonhnathan 5a263b253d [Security Content] Add Investigation Guides - 2 (#1822)
* Add Investigation Guides for Windows Rules - First half

* + 1/2

* Update impact_volume_shadow_copy_deletion_or_resized_via_vssadmin.toml

* Update credential_access_mod_wdigest_security_provider.toml

* Apply suggestions from code review

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

* Update defense_evasion_amsienable_key_mod.toml

* Update defense_evasion_amsienable_key_mod.toml

* Apply suggestions from code review

Co-authored-by: benironside <91905639+benironside@users.noreply.github.com>

* Update command_and_control_certutil_network_connection.toml

* Apply suggestions from code review

Co-authored-by: nastasha-solomon <79124755+nastasha-solomon@users.noreply.github.com>
Co-authored-by: Joe Peeples <joe.peeples@elastic.co>
Co-authored-by: benironside <91905639+benironside@users.noreply.github.com>

* Update collection_winrar_encryption.toml

* Apply suggestions from code review

Co-authored-by: nastasha-solomon <79124755+nastasha-solomon@users.noreply.github.com>

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
Co-authored-by: benironside <91905639+benironside@users.noreply.github.com>
Co-authored-by: nastasha-solomon <79124755+nastasha-solomon@users.noreply.github.com>
Co-authored-by: Joe Peeples <joe.peeples@elastic.co>

(cherry picked from commit a3d7427d29)
2022-03-30 17:46:02 +00:00
Colson Wilhoit 150ff0502e Linux Shell Evasion Rule Tuning (#1878)
* Linux Shell Evasion Rule Tuning

* Update execution_python_tty_shell.toml

* Update rules/linux/execution_apt_binary.toml

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

* Update rules/linux/execution_apt_binary.toml

* Update rules/linux/execution_awk_binary_shell.toml

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

* Update rules/linux/execution_awk_binary_shell.toml

* Update rules/linux/execution_c89_c99_binary.toml

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

* Update rules/linux/execution_c89_c99_binary.toml

* Update rules/linux/execution_cpulimit_binary.toml

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

* Update rules/linux/execution_cpulimit_binary.toml

* Update rules/linux/execution_expect_binary.toml

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

* Update rules/linux/execution_expect_binary.toml

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

* Update rules/linux/execution_expect_binary.toml

* Update rules/linux/execution_find_binary.toml

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

* Update rules/linux/execution_find_binary.toml

* Update rules/linux/execution_gcc_binary.toml

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

* Update rules/linux/execution_gcc_binary.toml

* Update rules/linux/execution_mysql_binary.toml

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

* Update rules/linux/execution_mysql_binary.toml

* Update rules/linux/execution_nice_binary.toml

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

* Update rules/linux/execution_nice_binary.toml

* Update rules/linux/execution_ssh_binary.toml

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

* Update rules/linux/execution_ssh_binary.toml

* Update execution_perl_tty_shell.toml

* Update execution_python_tty_shell.toml

* Update rules/linux/execution_apt_binary.toml

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

* Update rules/linux/execution_awk_binary_shell.toml

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

* Update rules/linux/execution_c89_c99_binary.toml

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

* Update rules/linux/execution_cpulimit_binary.toml

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

* Update rules/linux/execution_expect_binary.toml

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

* Update rules/linux/execution_find_binary.toml

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

* Update rules/linux/execution_gcc_binary.toml

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

* Update rules/linux/execution_mysql_binary.toml

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

* Update rules/linux/execution_nice_binary.toml

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

* Update rules/linux/execution_ssh_binary.toml

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

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
2022-03-29 21:03:35 -04:00