diff --git a/atomics/Indexes/index.yaml b/atomics/Indexes/index.yaml
index adaf9f24..c9cd4d80 100644
--- a/atomics/Indexes/index.yaml
+++ b/atomics/Indexes/index.yaml
@@ -642,23 +642,33 @@ persistence:
       identifier: T1138
     atomic_tests:
     - name: Application Shim Installation
-      description: |
-        Install a shim database. This technique is used for privelage escalation and bypassing user access control. Upon execution, "Installation of AtomicShim complete."
-        will be displayed.
+      description: "Install a shim database. This technique is used for privilege
+        escalation and bypassing user access control.\nUpon execution, \"Installation
+        of AtomicShim complete.\" will be displayed. To verify the shim behavior,
+        run \nthe AtomicTest.exe from the <PathToAtomicsFolder>\\T1138\\bin directory.
+        You should see a message box appear\nwith \"Atomic Shim DLL Test!\" as defined
+        in the AtomicTest.dll. To better understand what is happening, review\nthe
+        source code files is the <PathToAtomicsFolder>\\T1138\\src directory.\n"
       supported_platforms:
       - windows
       input_arguments:
         file_path:
-          description: Path to the shim databaase file
+          description: Path to the shim database file
           type: String
-          default: PathToAtomicsFolder\T1138\src\AtomicShimx86.sdb
+          default: PathToAtomicsFolder\T1138\bin\AtomicShimx86.sdb
       dependency_executor_name: powershell
       dependencies:
       - description: Shim database file must exist on disk at specified location (#{file_path})
         prereq_command: 'if (Test-Path #{file_path}) {exit 0} else {exit 1}'
         get_prereq_command: |-
           New-Item -Type Directory (split-path #{file_path}) -ErrorAction ignore | Out-Null
-          Invoke-WebRequest "https://github.com/redcanaryco/atomic-red-team/raw/master/atomics/T1138/src/AtomicShimx86.sdb" -OutFile "#{file_path}"
+          Invoke-WebRequest "https://github.com/redcanaryco/atomic-red-team/raw/master/atomics/T1138/bin/AtomicShimx86.sdb" -OutFile "#{file_path}"
+      - description: AtomicTest.dll must exist at c:\Tools\AtomicTest.dll
+        prereq_command: if (Test-Path c:\Tools\AtomicTest.dll) {exit 0} else {exit
+          1}
+        get_prereq_command: |-
+          New-Item -Type Directory (split-path c:\Tools\AtomicTest.dll) -ErrorAction ignore | Out-Null
+          Invoke-WebRequest "https://github.com/redcanaryco/atomic-red-team/raw/master/atomics/T1138/bin/AtomicTest.dll" -OutFile c:\Tools\AtomicTest.dll
       executor:
         name: command_prompt
         elevation_required: true
@@ -13561,23 +13571,33 @@ privilege-escalation:
       identifier: T1138
     atomic_tests:
     - name: Application Shim Installation
-      description: |
-        Install a shim database. This technique is used for privelage escalation and bypassing user access control. Upon execution, "Installation of AtomicShim complete."
-        will be displayed.
+      description: "Install a shim database. This technique is used for privilege
+        escalation and bypassing user access control.\nUpon execution, \"Installation
+        of AtomicShim complete.\" will be displayed. To verify the shim behavior,
+        run \nthe AtomicTest.exe from the <PathToAtomicsFolder>\\T1138\\bin directory.
+        You should see a message box appear\nwith \"Atomic Shim DLL Test!\" as defined
+        in the AtomicTest.dll. To better understand what is happening, review\nthe
+        source code files is the <PathToAtomicsFolder>\\T1138\\src directory.\n"
       supported_platforms:
       - windows
       input_arguments:
         file_path:
-          description: Path to the shim databaase file
+          description: Path to the shim database file
           type: String
-          default: PathToAtomicsFolder\T1138\src\AtomicShimx86.sdb
+          default: PathToAtomicsFolder\T1138\bin\AtomicShimx86.sdb
       dependency_executor_name: powershell
       dependencies:
       - description: Shim database file must exist on disk at specified location (#{file_path})
         prereq_command: 'if (Test-Path #{file_path}) {exit 0} else {exit 1}'
         get_prereq_command: |-
           New-Item -Type Directory (split-path #{file_path}) -ErrorAction ignore | Out-Null
-          Invoke-WebRequest "https://github.com/redcanaryco/atomic-red-team/raw/master/atomics/T1138/src/AtomicShimx86.sdb" -OutFile "#{file_path}"
+          Invoke-WebRequest "https://github.com/redcanaryco/atomic-red-team/raw/master/atomics/T1138/bin/AtomicShimx86.sdb" -OutFile "#{file_path}"
+      - description: AtomicTest.dll must exist at c:\Tools\AtomicTest.dll
+        prereq_command: if (Test-Path c:\Tools\AtomicTest.dll) {exit 0} else {exit
+          1}
+        get_prereq_command: |-
+          New-Item -Type Directory (split-path c:\Tools\AtomicTest.dll) -ErrorAction ignore | Out-Null
+          Invoke-WebRequest "https://github.com/redcanaryco/atomic-red-team/raw/master/atomics/T1138/bin/AtomicTest.dll" -OutFile c:\Tools\AtomicTest.dll
       executor:
         name: command_prompt
         elevation_required: true
diff --git a/atomics/T1138/T1138.md b/atomics/T1138/T1138.md
index 51782765..5b483e2d 100644
--- a/atomics/T1138/T1138.md
+++ b/atomics/T1138/T1138.md
@@ -26,8 +26,11 @@ To keep shims secure, Windows designed them to run in user mode so they cannot m
 <br/>
 
 ## Atomic Test #1 - Application Shim Installation
-Install a shim database. This technique is used for privelage escalation and bypassing user access control. Upon execution, "Installation of AtomicShim complete."
-will be displayed.
+Install a shim database. This technique is used for privilege escalation and bypassing user access control.
+Upon execution, "Installation of AtomicShim complete." will be displayed. To verify the shim behavior, run 
+the AtomicTest.exe from the <PathToAtomicsFolder>\T1138\bin directory. You should see a message box appear
+with "Atomic Shim DLL Test!" as defined in the AtomicTest.dll. To better understand what is happening, review
+the source code files is the <PathToAtomicsFolder>\T1138\src directory.
 
 **Supported Platforms:** Windows
 
@@ -37,7 +40,7 @@ will be displayed.
 #### Inputs:
 | Name | Description | Type | Default Value | 
 |------|-------------|------|---------------|
-| file_path | Path to the shim databaase file | String | PathToAtomicsFolder&#92;T1138&#92;src&#92;AtomicShimx86.sdb|
+| file_path | Path to the shim database file | String | PathToAtomicsFolder&#92;T1138&#92;bin&#92;AtomicShimx86.sdb|
 
 
 #### Attack Commands: Run with `command_prompt`!  Elevation Required (e.g. root or admin) 
@@ -63,7 +66,17 @@ if (Test-Path #{file_path}) {exit 0} else {exit 1}
 ##### Get Prereq Commands:
 ```powershell
 New-Item -Type Directory (split-path #{file_path}) -ErrorAction ignore | Out-Null
-Invoke-WebRequest "https://github.com/redcanaryco/atomic-red-team/raw/master/atomics/T1138/src/AtomicShimx86.sdb" -OutFile "#{file_path}"
+Invoke-WebRequest "https://github.com/redcanaryco/atomic-red-team/raw/master/atomics/T1138/bin/AtomicShimx86.sdb" -OutFile "#{file_path}"
+```
+##### Description: AtomicTest.dll must exist at c:\Tools\AtomicTest.dll
+##### Check Prereq Commands:
+```powershell
+if (Test-Path c:\Tools\AtomicTest.dll) {exit 0} else {exit 1} 
+```
+##### Get Prereq Commands:
+```powershell
+New-Item -Type Directory (split-path c:\Tools\AtomicTest.dll) -ErrorAction ignore | Out-Null
+Invoke-WebRequest "https://github.com/redcanaryco/atomic-red-team/raw/master/atomics/T1138/bin/AtomicTest.dll" -OutFile c:\Tools\AtomicTest.dll
 ```