{"id":"098d7118-55bc-4912-a836-dc6483a8d150","title":"Access To ADMIN$ Network Share","description":"Detects access to ADMIN$ network share","author":"Florian Roth (Nextron Systems)","status":"test","level":"low","date":"2017-03-04","modified":"2024-01-16","tags":["attack.lateral-movement","attack.t1021.002"],"technique_ids":["T1021.002"],"logsource":{"product":"windows","service":"security","definition":"Requirements: The advanced audit policy setting \"Object Access > Audit File Share\" must be configured for Success/Failure"},"falsepositives":["Legitimate administrative activity"],"references":["https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-10/security/threat-protection/auditing/event-5140"],"source_path":"rules/windows/builtin/security/win_security_admin_share_access.yml","source_sha256":"7942d656ac9042507e0e94c6de00ec372245666baf82c9c4aacc0de3d1966f83","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/builtin/security/win_security_admin_share_access.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Access To ADMIN$ Network Share\nid: 098d7118-55bc-4912-a836-dc6483a8d150\nstatus: test\ndescription: Detects access to ADMIN$ network share\nreferences:\n    - https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-10/security/threat-protection/auditing/event-5140\nauthor: Florian Roth (Nextron Systems)\ndate: 2017-03-04\nmodified: 2024-01-16\ntags:\n    - attack.lateral-movement\n    - attack.t1021.002\nlogsource:\n    product: windows\n    service: security\n    definition: 'Requirements: The advanced audit policy setting \"Object Access > Audit File Share\" must be configured for Success/Failure'\ndetection:\n    selection:\n        EventID: 5140\n        ShareName: 'Admin$'\n    filter_main_computer_account:\n        SubjectUserName|endswith: '$'\n    condition: selection and not 1 of filter_*\nfalsepositives:\n    - Legitimate administrative activity\nlevel: low\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1021.002","id":"T1021.002","name":"SMB/Windows Admin Shares","page":"techniques/enterprise/T1021.002/"}],"data_path":"data/detection-rules/098d7118-55bc-4912-a836-dc6483a8d150.json","kind":"sigma"}