{"id":"3ffd6f51-e6c1-47b7-94b4-c1e61d4117c5","title":"Certificate Exported Via Certutil.EXE","description":"Detects the execution of the certutil with the \"exportPFX\" flag which allows the utility to export certificates.","author":"Florian Roth (Nextron Systems), Jonhnathan Ribeiro, oscd.community, Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"medium","date":"2023-02-15","modified":"2024-03-05","tags":["attack.stealth","attack.t1027"],"technique_ids":["T1027"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["There legitimate reasons to export certificates. Investigate the activity to determine if it's benign"],"references":["https://www.splunk.com/en_us/blog/security/a-golden-saml-journey-solarwinds-continued.html"],"source_path":"rules/windows/process_creation/proc_creation_win_certutil_export_pfx.yml","source_sha256":"fa49b82cd59f495bc0e695ec755d943dd84efa403be667865134bd9f566e37e5","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_certutil_export_pfx.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Certificate Exported Via Certutil.EXE\nid: 3ffd6f51-e6c1-47b7-94b4-c1e61d4117c5\nstatus: test\ndescription: Detects the execution of the certutil with the \"exportPFX\" flag which allows the utility to export certificates.\nreferences:\n    - https://www.splunk.com/en_us/blog/security/a-golden-saml-journey-solarwinds-continued.html\nauthor: Florian Roth (Nextron Systems), Jonhnathan Ribeiro, oscd.community, Nasreddine Bencherchali (Nextron Systems)\ndate: 2023-02-15\nmodified: 2024-03-05\ntags:\n    - attack.stealth\n    - attack.t1027\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_img:\n        - Image|endswith: '\\certutil.exe'\n        - OriginalFileName: 'CertUtil.exe'\n    selection_cli:\n        CommandLine|contains|windash: '-exportPFX '\n    condition: all of selection_*\nfalsepositives:\n    - There legitimate reasons to export certificates. Investigate the activity to determine if it's benign\nlevel: medium\nregression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_certutil_export_pfx/info.yml\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1027","id":"T1027","name":"Obfuscated Files or Information","page":"techniques/enterprise/T1027/"}],"data_path":"data/detection-rules/3ffd6f51-e6c1-47b7-94b4-c1e61d4117c5.json","kind":"sigma"}