Added Sigma Rules

rules/Sigma/win_susp_script_execution.yml

@@ -0,0 +1,42 @@
+title: WSF/JSE/JS/VBA/VBE File Execution
+author: Michael Haag
+date: 2019/01/16
+description: Detects suspicious file execution by wscript and cscript
+detection:
+    SELECTION_1:
+        EventID: 1
+    SELECTION_2:
+        Image: '*\wscript.exe'
+    SELECTION_3:
+        Image: '*\cscript.exe'
+    SELECTION_4:
+        CommandLine: '*.jse*'
+    SELECTION_5:
+        CommandLine: '*.vbe*'
+    SELECTION_6:
+        CommandLine: '*.js*'
+    SELECTION_7:
+        CommandLine: '*.vba*'
+    condition: (SELECTION_1 and (SELECTION_2 or SELECTION_3) and (SELECTION_4 or SELECTION_5
+        or SELECTION_6 or SELECTION_7))
+falsepositives:
+- Will need to be tuned. I recommend adding the user profile path in CommandLine if
+    it is getting too noisy.
+fields:
+- CommandLine
+- ParentCommandLine
+id: 1e33157c-53b1-41ad-bbcc-780b80b58288
+level: medium
+logsource:
+    category: process_creation
+    product: windows
+modified: 2020/08/28
+status: experimental
+tags:
+- attack.execution
+- attack.t1059.005
+- attack.t1059.007
+- attack.t1064
+yml_filename: win_susp_script_execution.yml
+yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation
+