[Security Content] Adjust Mitre Att&ck Mappings - Windows Rules (#3165)

* [Security Content] Adjust Mitre Att&ck Mappings - Windows Rules

* Fix dates

* Fix unit test errors

* updated tags and fixed branch conflicts

updated tags and fixed branch conflicts

* description nit

* Reverting unintended changes

* Update initial_access_suspicious_ms_office_child_process.toml

---------

Co-authored-by: imays11 <59296946+imays11@users.noreply.github.com>

(cherry picked from commit f584fb6e31)

rules/windows/initial_access_script_executing_powershell.toml

@@ -4,7 +4,7 @@ integration = ["endpoint", "windows"]
 maturity = "production"
 min_stack_comments = "New fields added: required_fields, related_integrations, setup"
 min_stack_version = "8.3.0"
-updated_date = "2023/06/22"
+updated_date = "2023/10/13"
 
 [rule]
 author = ["Elastic"]
@@ -74,7 +74,7 @@ If enabling an EQL rule on a non-elastic-agent index (such as beats) for version
 risk_score = 21
 rule_id = "f545ff26-3c94-4fd0-bd33-3c7f95a3a0fc"
 severity = "low"
-tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Initial Access", "Resources: Investigation Guide", "Data Source: Elastic Endgame", "Data Source: Elastic Defend"]
+tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Initial Access", "Tactic: Execution", "Resources: Investigation Guide", "Data Source: Elastic Endgame", "Data Source: Elastic Defend"]
 timestamp_override = "event.ingested"
 type = "eql"
 
@@ -102,3 +102,26 @@ id = "TA0001"
 name = "Initial Access"
 reference = "https://attack.mitre.org/tactics/TA0001/"
 
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+[[rule.threat.technique]]
+id = "T1059"
+name = "Command and Scripting Interpreter"
+reference = "https://attack.mitre.org/techniques/T1059/"
+[[rule.threat.technique.subtechnique]]
+id = "T1059.001"
+name = "PowerShell"
+reference = "https://attack.mitre.org/techniques/T1059/001/"
+[[rule.threat.technique.subtechnique]]
+id = "T1059.005"
+name = "Visual Basic"
+reference = "https://attack.mitre.org/techniques/T1059/005/"
+
+
+
+[rule.threat.tactic]
+id = "TA0002"
+name = "Execution"
+reference = "https://attack.mitre.org/tactics/TA0002/"
+