Add proc_creation_win_susp_rundll32_user32_dll

2022-06-04 11:48:44 +02:00
parent 5c30acd2c9
commit e4499caa4e
1 changed files with 27 additions and 0 deletions
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+title: Rundll32 Suspicious user32.dll Call
+id: 3b5b0213-0460-4e3f-8937-3abf98ff7dcc
+description: Detects suspicious call to user32.dll function
+status: experimental
+references:
+    - https://app.any.run/tasks/2aef9c63-f944-4763-b3ef-81eee209d128/
+author: frack113
+date: 2022/06/04
+logsource:
+    category: process_creation
+    product: windows
+detection:
+    selection_call:
+        Image|endswith: '\rundll32.exe'
+        ParentImage|endswith: '\cmd.exe'
+        CommandLine|contains: 'user32.dll,'
+    selection_function: 
+        CommandLine|contains: 'LockWorkStation'
+    condition: all of selection*
+fields:
+    - Image
+    - ParentImage
+falsepositives:
+    - Unknown
+level: medium
+tags:
+    - attack.defense_evasion