{"id":"e88a6ddc-74f7-463b-9b26-f69fc0d2ce85","title":"New TimeProviders Registered With Uncommon DLL Name","description":"Detects processes setting a new DLL in DllName in under HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\W32Time\\TimeProvider.\nAdversaries may abuse time providers to execute DLLs when the system boots.\nThe Windows Time service (W32Time) enables time synchronization across and within domains.\n","author":"frack113","status":"test","level":"high","date":"2022-06-19","modified":"2024-03-26","tags":["attack.persistence","attack.privilege-escalation","attack.t1547.003"],"technique_ids":["T1547.003"],"logsource":{"category":"registry_set","product":"windows"},"falsepositives":["Unknown"],"references":["https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1547.003/T1547.003.md"],"source_path":"rules/windows/registry/registry_set/registry_set_timeproviders_dllname.yml","source_sha256":"499a423072b106e6043ab2cdea957829cbd2fb3603bd2c0a6e4ea905bd573b7c","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/registry/registry_set/registry_set_timeproviders_dllname.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: New TimeProviders Registered With Uncommon DLL Name\nid: e88a6ddc-74f7-463b-9b26-f69fc0d2ce85\nstatus: test\ndescription: |\n    Detects processes setting a new DLL in DllName in under HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\W32Time\\TimeProvider.\n    Adversaries may abuse time providers to execute DLLs when the system boots.\n    The Windows Time service (W32Time) enables time synchronization across and within domains.\nreferences:\n    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1547.003/T1547.003.md\nauthor: frack113\ndate: 2022-06-19\nmodified: 2024-03-26\ntags:\n    - attack.persistence\n    - attack.privilege-escalation\n    - attack.t1547.003\nlogsource:\n    category: registry_set\n    product: windows\ndetection:\n    selection:\n        TargetObject|contains: '\\Services\\W32Time\\TimeProviders'\n        TargetObject|endswith: '\\DllName'\n    filter_main_w32time:\n        Details:\n            - '%SystemRoot%\\System32\\vmictimeprovider.dll'\n            - '%systemroot%\\system32\\w32time.dll'\n            - 'C:\\Windows\\SYSTEM32\\w32time.DLL'\n    condition: selection and not 1 of filter_main_*\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1547.003","id":"T1547.003","name":"Time Providers","page":"techniques/enterprise/T1547.003/"}],"data_path":"data/detection-rules/e88a6ddc-74f7-463b-9b26-f69fc0d2ce85.json","kind":"sigma"}