Added Sigma Rules

rules/Sigma/process_creation_sysinternals_eula_accepted.yml

@@ -0,0 +1,32 @@
+title: Usage of Sysinternals Tools
+author: Markus Neis
+date: 2017/08/28
+description: Detects the usage of Sysinternals Tools due to accepteula key being added
+    to Registry
+detection:
+    SELECTION_1:
+        EventID: 1
+    SELECTION_2:
+        CommandLine: '* -accepteula*'
+    condition: (SELECTION_1 and SELECTION_2)
+falsepositives:
+- Legitimate use of SysInternals tools
+- Programs that use the same Registry Key
+id: 7cccd811-7ae9-4ebe-9afd-cb5c406b824b
+level: low
+logsource:
+    category: process_creation
+    product: windows
+modified: 2021/09/12
+references:
+- https://twitter.com/Moti_B/status/1008587936735035392
+related:
+-   id: 25ffa65d-76d8-4da5-a832-3f2b0136e133
+    type: derived
+status: experimental
+tags:
+- attack.resource_development
+- attack.t1588.002
+yml_filename: process_creation_sysinternals_eula_accepted.yml
+yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation
+