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.privilege-escalation
12    - attack.defense-evasion
13    - attack.t1055
14logsource:
15    category: process_creation
16    product: windows
17detection:
18    selection:
19        CommandLine|contains|all:
20            - 'rundll32.exe'
21            - 'Execute'
22            - 'RegRead'
23            - 'window.close'
24    condition: selection
25falsepositives:
26    - Unknown
27level: high

References

• GoldMax, GoldFinder, and Sibot: Analyzing NOBELIUM’s layered persistence | Microsoft Security Blog

  

  Microsoft has identified three new pieces of malware being used in late-stage activity by NOBELIUM – the actor behind the SolarWinds attacks, SUNBURST, and TEARDROP.

  
  Read More

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