Feature/rm submodule (#312)

* rm: submodule

* Add: rules

* Fix: hayabusa-rules to c9c10a

rules/sigma/process_creation/win_indirect_cmd.yml

@@ -0,0 +1,37 @@
+
+title: Indirect Command Execution
+ruletype: Sigma
+author: E.M. Anhaus (originally from Atomic Blue Detections, Endgame), oscd.community
+date: 2019/10/24
+description: Detect indirect command execution via Program Compatibility Assistant
+  (pcalua.exe or forfiles.exe).
+detection:
+  SELECTION_1:
+    EventID: 1
+  SELECTION_2:
+    ParentImage:
+    - '*\pcalua.exe'
+    - '*\forfiles.exe'
+  condition: (SELECTION_1 and SELECTION_2)
+falsepositives:
+- Need to use extra processing with 'unique_count' / 'filter' to focus on outliers
+  as opposed to commonly seen artifacts.
+- Legitimate usage of scripts.
+fields:
+- ComputerName
+- User
+- ParentCommandLine
+- CommandLine
+id: fa47597e-90e9-41cd-ab72-c3b74cfb0d02
+level: low
+logsource:
+  category: process_creation
+  product: windows
+modified: 2021/11/27
+references:
+- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1202/T1202.md
+- https://eqllib.readthedocs.io/en/latest/analytics/884a7ccd-7305-4130-82d0-d4f90bc118b6.html
+status: test
+tags:
+- attack.defense_evasion
+- attack.t1202