Feature/rm submodule (#312)

* rm: submodule

* Add: rules

* Fix: hayabusa-rules to c9c10a

rules/sigma/process_creation/win_workflow_compiler.yml

@@ -0,0 +1,37 @@
+
+title: Microsoft Workflow Compiler
+ruletype: Sigma
+author: Nik Seetharaman, frack113
+date: 2019/01/16
+description: Detects invocation of Microsoft Workflow Compiler, which may permit the
+  execution of arbitrary unsigned code.
+detection:
+  SELECTION_1:
+    EventID: 1
+  SELECTION_2:
+    Image: '*\Microsoft.Workflow.Compiler.exe'
+  SELECTION_3:
+    OriginalFileName: Microsoft.Workflow.Compiler.exe
+  SELECTION_4:
+    CommandLine: '*.xml*'
+  condition: (SELECTION_1 and (SELECTION_2 or (SELECTION_3 and SELECTION_4)))
+falsepositives:
+- Legitimate MWC use (unlikely in modern enterprise environments)
+fields:
+- CommandLine
+- ParentCommandLine
+id: 419dbf2b-8a9b-4bea-bf99-7544b050ec8d
+level: high
+logsource:
+  category: process_creation
+  product: windows
+modified: 2021/07/13
+references:
+- https://posts.specterops.io/arbitrary-unsigned-code-execution-vector-in-microsoft-workflow-compiler-exe-3d9294bc5efb
+- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1218/T1218.md
+status: experimental
+tags:
+- attack.defense_evasion
+- attack.execution
+- attack.t1127
+- attack.t1218