Commit Graph

18 Commits

Author SHA1 Message Date
Justin Ibarra 8564185a7d [Bug] resolves bug in Rule version methods (#2021)
* [Bug] resolves bug in Rule version methods

* comment out unused code with notes

(cherry picked from commit 744f56d98e)
2022-06-07 23:41:40 +00:00
Justin Ibarra c16442517e [Bug] Fix test_matrix_to_lock_version_defaults test (#2014)
(cherry picked from commit e850f39526)
2022-06-03 00:35:19 +00:00
Justin Ibarra 3a1a5fe12b Collapse unsupported previous version entries (#2013)
* Collapse unsupported previous version entries
* drop the last entry in the matrix test

(cherry picked from commit f57950a3c9)
2022-06-02 23:18:45 +00:00
Terrance DeJesus 220996b1b8 Prep for Creation of 8.4 Branch (#2001)
* prepping for 8.4 branch

* adjusted schemas init file

* adjusted target matrix to only backport to 7.16, updated api schemas

* adjusted the lock-versions workflow to account for 7.16 and up support only

* Add test for version lock to schema map correlation

* decouple from static 7.13 references

* keep patch version for lock

* Update detection_rules/etc/packages.yml

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

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
Co-authored-by: brokensound77 <brokensound77@users.noreply.github.com>

Removed changes from:
- detection_rules/etc/packages.yml

(selectively cherry picked from commit 35b1a69ff5)
2022-06-02 18:59:56 +00:00
Justin Ibarra 6199bd4524 Refresh ECS/beats schemas up to 8.2 (#1995)
(cherry picked from commit 0428e161a8)
2022-05-25 19:53:52 +00:00
Mika Ayenson 3988b2ed5e Skip previous validation on pre/post load/dump (#1942)
* Build out the dataclasses for a base entry and version lock explicitly
* Ensure previous field does not have a nested previous
* Test validation on version lock for previous fields.

(cherry picked from commit e1266a6fd3)
2022-05-25 17:36:12 +00:00
Samirbous ca7a148f5a [New rule] Remote Computer Account DnsHostName Update (#1962)
* [New rule] Remote Computer Account DnsHostName Update

Identifies remote update to a computer account DnsHostName attribute, if the new value is set a valid domain controller DNS hostname and the subject computer name is not a domain controller then it's high likely a preparation step to exploit CVE-2022-26923 in an attempt to elevate privileges from a standard domain user to domain admin privileges :

* added MS ref url

* Update rules/windows/privilege_escalation_suspicious_dnshostname_update.toml

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>

* Update rules/windows/privilege_escalation_suspicious_dnshostname_update.toml

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>

Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>

(cherry picked from commit 19ff825a91)
2022-05-11 17:42:44 +00:00
Justin Ibarra 4b92b42b45 Manually reconciled versions from forked rule package generation bug (#1950)
(cherry picked from commit 8168551c59)
2022-05-04 18:06:16 +00:00
Justin Ibarra d7713cea73 Add delta command to determine changes to endpoint rules between tags (#1943)
* update git tag loader to be compatible with lock validation
* add diff command
* default to query for missing rules

(cherry picked from commit 22679e16d2)
2022-05-03 20:32:29 +00:00
Mika Ayenson 2ccbdcb773 Move etc under detection_rules (#1885)
* Move etc directory under detection_rules
* Prepend original `etc` path with `detection_rules`
* Update docstrings in util and CODEOWNERS
* Add resiliency to tags to account for the old directory structure
* Bug fix: remove unused param caused by commit 6ed1a39efe

Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
2022-05-02 14:06:33 -04:00
Mika Ayenson cc8af968e3 Move etc under detection_rules (#1885)
* Move etc directory under detection_rules
* Prepend original `etc` path with `detection_rules`
* Update docstrings in util and CODEOWNERS
* Add resiliency to tags to account for the old directory structure
* Bug fix: remove unused param caused by commit 6ed1a39efe

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

Removed changes from:
- etc/packages.yml

(selectively cherry picked from commit 6219fc06b9)
2022-05-02 14:13:36 +00:00
Justin Ibarra fbd217ae53 Validate version lock and deprecation files on load and save (#1884)
* Validate version lock and deprecation files on load and save
* add missing types for previous lock entries
* bump marshmallow_dataclass

(cherry picked from commit c803160e4f)
2022-04-27 06:19:24 +00:00
Justin Ibarra a911907422 Remove deprecated elasticsearch parameter (#1913)
(cherry picked from commit b3e789a202)
2022-04-12 20:08:06 +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
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
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