Suspicious Rundll32 Invoking Inline VBScript

 1title: Suspicious Rundll32 Invoking Inline VBScript
 2id: 1cc50f3f-1fc8-4acf-b2e9-6f172e1fdebd
 3status: test
 4description: Detects suspicious process related to rundll32 based on command line that invokes inline VBScript as seen being used by UNC2452
 5references:
 6    - https://www.microsoft.com/security/blog/2021/03/04/goldmax-goldfinder-sibot-analyzing-nobelium-malware/
 7author: Florian Roth (Nextron Systems)
 8date: 2021/03/05
 9modified: 2022/10/09
10tags:
11    - attack.defense_evasion
12    - attack.t1055
13logsource:
14    category: process_creation
15    product: windows
16detection:
17    selection:
18        CommandLine|contains|all:
19            - 'rundll32.exe'
20            - 'Execute'
21            - 'RegRead'
22            - 'window.close'
23    condition: selection
24falsepositives:
25    - Unknown
26level: high