diff --git a/detections/system_processes_run_from_unexpected_locations.yml b/detections/system_processes_run_from_unexpected_locations.yml
index 92cb5569f7..a24938ea99 100644
--- a/detections/system_processes_run_from_unexpected_locations.yml
+++ b/detections/system_processes_run_from_unexpected_locations.yml
@@ -28,6 +28,10 @@ detect:
         risk_object_type:
           - system
         risk_score: 50
+      macros:
+        - system32_executables
+      lookups:
+        - system32_executables
       schedule:
         cron_schedule: 0 * * * *
         earliest_time: -70m@m
@@ -41,8 +45,7 @@ detect:
         suppress_fields: dest,process_name
         suppress_period: 86400s
 eli5: This search returns all the processes that are not executing out of the C:\Windows\System32
-  or C:\Windows\SysWOW64 directories. It then uses a regular expression to extract
-  the file name of the running process. Next, it takes the filename and looks it up
+  or C:\Windows\SysWOW64 directories. Next, it takes the filename and looks it up
   in a table of files that should normally run out of the C:\Windows\System32 or C:\Windows\SysWOW64
   directory. Any matches are then returned.
 entities:
@@ -95,7 +98,7 @@ mappings:
   nist:
     - PR.PT
     - DE.CM
-modification_date: '2019-02-28'
+modification_date: '2020-01-21'
 name: System Processes Run From Unexpected Locations
 original_authors:
   - company: Splunk
@@ -105,4 +108,4 @@ references: []
 security_domain: endpoint
 spec_version: 2
 type: splunk
-version: '3.0'
+version: '4.0'
diff --git a/lookups/is_windows_system_file_lookup.yml b/lookups/system32_executables.yml
similarity index 78%
rename from lookups/is_windows_system_file_lookup.yml
rename to lookups/system32_executables.yml
index e232fc357a..acdc769149 100644
--- a/lookups/is_windows_system_file_lookup.yml
+++ b/lookups/system32_executables.yml
@@ -2,4 +2,4 @@ default_match: 'false'
 description: A list of executable files in Windows\System32
 filename: system32_executables.csv
 min_matches: 1
-name: is_windows_system_file_lookup
+name: system32_executables
diff --git a/macros/is_windows_system_file.yml b/macros/is_windows_system_file.yml
index 2afb2a895a..30c4bdec8f 100644
--- a/macros/is_windows_system_file.yml
+++ b/macros/is_windows_system_file.yml
@@ -1,5 +1,5 @@
-definition: lookup update=true is_windows_system_file_lookup filename as process_name
+definition: lookup update=true system32_executables filename as process_name
   OUTPUT systemFile | search systemFile=true
 description: This macro limits the output to process names that are in the Windows
   System directory
-name: is_windows_system_file
+name: system32_executables