rule: suspicious wmic process call create + rundll32

rules/windows/process_creation/win_susp_wmic_proc_create_rundll32.yml

@@ -0,0 +1,26 @@
+title: Suspicious WMI Execution using Rundll32
+id: 3c89a1e8-0fba-449e-8f1b-8409d6267ec8
+status: experimental
+description: Detects WMI executing rundll32
+references:
+    - https://thedfirreport.com/2020/10/08/ryuks-return/
+author: Florian Roth
+date: 2020/10/12
+logsource:
+    category: process_creation
+    product: windows
+detection:
+    selection:
+        CommandLine|contains|all:
+            - 'process call create'
+            - 'rundll32'
+    condition: selection
+fields:
+    - CommandLine
+    - ParentCommandLine
+tags:
+    - attack.execution
+    - attack.t1047
+falsepositives:
+    - Unknown
+level: high