{"id":"1cc50f3f-1fc8-4acf-b2e9-6f172e1fdebd","title":"Suspicious Rundll32 Invoking Inline VBScript","description":"Detects suspicious process related to rundll32 based on command line that invokes inline VBScript as seen being used by UNC2452","author":"Florian Roth (Nextron Systems)","status":"test","level":"high","date":"2021-03-05","modified":"2022-10-09","tags":["attack.privilege-escalation","attack.stealth","attack.t1055"],"technique_ids":["T1055"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://www.microsoft.com/security/blog/2021/03/04/goldmax-goldfinder-sibot-analyzing-nobelium-malware/"],"source_path":"rules/windows/process_creation/proc_creation_win_rundll32_inline_vbs.yml","source_sha256":"2dc4317cf0ef9d3cad43cec6a32c0edb1bd02783b26219d91abeee919dcf0e0f","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_rundll32_inline_vbs.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Suspicious Rundll32 Invoking Inline VBScript\nid: 1cc50f3f-1fc8-4acf-b2e9-6f172e1fdebd\nstatus: test\ndescription: Detects suspicious process related to rundll32 based on command line that invokes inline VBScript as seen being used by UNC2452\nreferences:\n    - https://www.microsoft.com/security/blog/2021/03/04/goldmax-goldfinder-sibot-analyzing-nobelium-malware/\nauthor: Florian Roth (Nextron Systems)\ndate: 2021-03-05\nmodified: 2022-10-09\ntags:\n    - attack.privilege-escalation\n    - attack.stealth\n    - attack.t1055\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        CommandLine|contains|all:\n            - 'rundll32.exe'\n            - 'Execute'\n            - 'RegRead'\n            - 'window.close'\n    condition: selection\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1055","id":"T1055","name":"Process Injection","page":"techniques/enterprise/T1055/"}],"data_path":"data/detection-rules/1cc50f3f-1fc8-4acf-b2e9-6f172e1fdebd.json","kind":"sigma"}