Update common_ransomware_extensions.yml

detections/endpoint/common_ransomware_extensions.yml

@@ -46,9 +46,7 @@ tags:
   impact: 90
   kill_chain_phases:
   - Actions on Objectives
-  message: A file - $file_name$ was written to disk on endpoint $dest$ by user $user$,
-    this is indicative of a known ransomware file extension and should be reviewed
-    immediately.
+  message: The device $dest$ wrote $file_count$ files to $path_count$ path(s) with the $file_extension$ extension. This extension and behavior may indicate a $Name$ ransomware attack.
   mitre_attack_id:
   - T1485
   nist:
@@ -67,6 +65,22 @@ tags:
     type: File Name
     role:
     - Victim
+  - name: file_count
+    type: Other
+    role:
+    - Other
+  - name: path_count
+    type: Other
+    role:
+    - Other
+  - name: file_extension
+    type: Other
+    role:
+    - Other
+  - name: Name
+    type: Other
+    role:
+    - Other
   product:
   - Splunk Enterprise
   - Splunk Enterprise Security