Merge PR #4760 from @X-Junior - Add new rule Renamed NirCmd.EXE Execution

new: Renamed NirCmd.EXE Execution 

---------

Co-authored-by: nasbench <8741929+nasbench@users.noreply.github.com>

rules/windows/process_creation/proc_creation_win_renamed_nircmd.yml

@@ -0,0 +1,28 @@
+title: Renamed NirCmd.EXE Execution
+id: 264982dc-dbad-4dce-b707-1e0d3e0f73d9
+status: experimental
+description: Detects the execution of a renamed "NirCmd.exe" binary based on the PE metadata fields.
+references:
+    - https://www.microsoft.com/en-us/security/blog/2024/01/17/new-ttps-observed-in-mint-sandstorm-campaign-targeting-high-profile-individuals-at-universities-and-research-orgs/
+    - https://www.nirsoft.net/utils/nircmd.html
+author: X__Junior (Nextron Systems)
+date: 2024/03/11
+tags:
+    - attack.execution
+    - attack.t1059
+    - attack.defense_evasion
+    - attack.t1202
+logsource:
+    category: process_creation
+    product: windows
+detection:
+    selection:
+        OriginalFileName: 'NirCmd.exe'
+    filter_main_img:
+        Image|endswith:
+            - '\nircmd.exe'
+            - '\nircmdc.exe'
+    condition: selection and not 1 of filter_main_*
+falsepositives:
+    - Unknown
+level: high