{"id":"97aa2e88-555c-450d-85a6-229bcd87efb8","title":"Suspicious Screensaver Binary File Creation","description":"Adversaries may establish persistence by executing malicious content triggered by user inactivity.\nScreensavers are programs that execute after a configurable time of user inactivity and consist of Portable Executable (PE) files with a .scr file extension\n","author":"frack113","status":"test","level":"medium","date":"2021-12-29","modified":"2022-11-08","tags":["attack.privilege-escalation","attack.persistence","attack.t1546.002"],"technique_ids":["T1546.002"],"logsource":{"product":"windows","category":"file_event"},"falsepositives":["Unknown"],"references":["https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1546.002/T1546.002.md"],"source_path":"rules/windows/file/file_event/file_event_win_creation_scr_binary_file.yml","source_sha256":"8903c7caf51ca04527d174a43b949063dab2a915698c535582ac90519106e21a","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/file/file_event/file_event_win_creation_scr_binary_file.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 Screensaver Binary File Creation\nid: 97aa2e88-555c-450d-85a6-229bcd87efb8\nstatus: test\ndescription: |\n    Adversaries may establish persistence by executing malicious content triggered by user inactivity.\n    Screensavers are programs that execute after a configurable time of user inactivity and consist of Portable Executable (PE) files with a .scr file extension\nreferences:\n    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1546.002/T1546.002.md\nauthor: frack113\ndate: 2021-12-29\nmodified: 2022-11-08\ntags:\n    - attack.privilege-escalation\n    - attack.persistence\n    - attack.t1546.002\nlogsource:\n    product: windows\n    category: file_event\ndetection:\n    selection:\n        TargetFilename|endswith: '.scr'\n    filter_generic:\n        Image|endswith:\n            - '\\Kindle.exe'\n            - '\\Bin\\ccSvcHst.exe' # Symantec Endpoint Protection\n    filter_tiworker:\n        # ParentCommandLine: C:\\WINDOWS\\system32\\svchost.exe -k DcomLaunch -p\n        Image|endswith: '\\TiWorker.exe'\n        TargetFilename|endswith: '\\uwfservicingscr.scr'\n    condition: selection and not 1 of filter_*\nfalsepositives:\n    - Unknown\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1546.002","id":"T1546.002","name":"Screensaver","page":"techniques/enterprise/T1546.002/"}],"data_path":"data/detection-rules/97aa2e88-555c-450d-85a6-229bcd87efb8.json","kind":"sigma"}