{"id":"a2ea3ae7-d3d0-40a0-a55c-25a45c87cac1","title":"Suspicious Driver Install by pnputil.exe","description":"Detects when a possible suspicious driver is being installed via pnputil.exe lolbin","author":"Hai Vaknin @LuxNoBulIshit, Avihay eldad  @aloneliassaf, Austin Songer @austinsonger","status":"test","level":"medium","date":"2021-09-30","modified":"2022-10-09","tags":["attack.privilege-escalation","attack.persistence","attack.t1547"],"technique_ids":["T1547"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Pnputil.exe being used may be performed by a system administrator.","Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.","Pnputil.exe being executed from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule."],"references":["https://learn.microsoft.com/en-us/windows-hardware/drivers/devtest/pnputil-command-syntax","https://strontic.github.io/xcyclopedia/library/pnputil.exe-60EDC5E6BDBAEE441F2E3AEACD0340D2.html"],"source_path":"rules/windows/process_creation/proc_creation_win_lolbin_susp_driver_installed_by_pnputil.yml","source_sha256":"5a92cb588d27234706173ed5147cd4c3071b8f218b391c6343d597b7a6962327","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_lolbin_susp_driver_installed_by_pnputil.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 Driver Install by pnputil.exe\nid: a2ea3ae7-d3d0-40a0-a55c-25a45c87cac1\nstatus: test\ndescription: Detects when a possible suspicious driver is being installed via pnputil.exe lolbin\nreferences:\n    - https://learn.microsoft.com/en-us/windows-hardware/drivers/devtest/pnputil-command-syntax\n    - https://strontic.github.io/xcyclopedia/library/pnputil.exe-60EDC5E6BDBAEE441F2E3AEACD0340D2.html\nauthor: Hai Vaknin @LuxNoBulIshit, Avihay eldad  @aloneliassaf, Austin Songer @austinsonger\ndate: 2021-09-30\nmodified: 2022-10-09\ntags:\n    - attack.privilege-escalation\n    - attack.persistence\n    - attack.t1547\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        CommandLine|contains:\n            - '-i'\n            - '/install'\n            - '-a'\n            - '/add-driver'\n            - '.inf'\n        Image|endswith: '\\pnputil.exe'\n    condition: selection\nfalsepositives:\n    - Pnputil.exe being used may be performed by a system administrator.\n    - Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.\n    - Pnputil.exe being executed from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1547","id":"T1547","name":"Boot or Logon Autostart Execution","page":"techniques/enterprise/T1547/"}],"data_path":"data/detection-rules/a2ea3ae7-d3d0-40a0-a55c-25a45c87cac1.json","kind":"sigma"}