order powershell_script

rules/windows/powershell/powershell_script/powershell_keylogging.yml

@@ -0,0 +1,29 @@
+title: Powershell Keylogging
+id: 34f90d3c-c297-49e9-b26d-911b05a4866c
+status: experimental
+author: frack113
+date: 2021/07/30
+description: Adversaries may log user keystrokes to intercept credentials as the user types them.
+references:
+    - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1218/T1218.md
+    - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1056.001/src/Get-Keystrokes.ps1
+tags:
+    - attack.collection
+    - attack.t1056.001
+logsource:
+    product: windows
+    service: powershell
+    definition: EnableScriptBlockLogging must be set to enable
+detection:
+    selection_id:
+        EventID: 4104
+    selection_basic:
+        ScriptBlockText|contains: 'Get-Keystrokes'    
+    selection_high: # want to run in background and keyboard
+        ScriptBlockText|contains|all:
+            - 'Get-ProcAddress user32.dll GetAsyncKeyState'
+            - 'Get-ProcAddress user32.dll GetForegroundWindow'
+    condition: selection_id and (selection_basic or selection_high)
+falsepositives:
+    - Unknown
+level: medium