{"id":"03f4ca17-de95-428d-a75a-4ee78b047256","title":"HackTool - Impacket File Indicators","description":"Detects file creation events with filename patterns used by Impacket.","author":"The DFIR Report, IrishDeath","status":"experimental","level":"high","date":"2025-05-19","modified":"","tags":["attack.credential-access","attack.t1003.001"],"technique_ids":["T1003.001"],"logsource":{"product":"windows","category":"file_event"},"falsepositives":["Unknown"],"references":["https://thedfirreport.com/2025/05/19/another-confluence-bites-the-dust-falling-to-elpaco-team-ransomware/","https://github.com/fortra/impacket"],"source_path":"rules/windows/file/file_event/file_event_win_impacket_file_indicators.yml","source_sha256":"f2fd3128853f2f28c3705f2ee3fa3976077059c8d5b884cdad8ce353206a37ef","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/file/file_event/file_event_win_impacket_file_indicators.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: HackTool - Impacket File Indicators\nid: 03f4ca17-de95-428d-a75a-4ee78b047256\nrelated:\n    - id: 6e2a900a-ced9-4e4a-a9c2-13e706f9518a\n      type: similar\nstatus: experimental\ndescription: Detects file creation events with filename patterns used by Impacket.\nreferences:\n    - https://thedfirreport.com/2025/05/19/another-confluence-bites-the-dust-falling-to-elpaco-team-ransomware/\n    - https://github.com/fortra/impacket\nauthor: \"The DFIR Report, IrishDeath\"\ndate: 2025-05-19\ntags:\n    - attack.credential-access\n    - attack.t1003.001\nlogsource:\n    product: windows\n    category: file_event\ndetection:\n    selection_names_re:\n        TargetFilename|re: '\\\\sessionresume_[a-zA-Z]{8}$' # https://github.com/fortra/impacket/blob/ead516a1209742efc7ac550707a9304ba08681e9/impacket/examples/secretsdump.py#L1925C38-L1925C51\n    condition: selection_names_re\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1003.001","id":"T1003.001","name":"LSASS Memory","page":"techniques/enterprise/T1003.001/"}],"data_path":"data/detection-rules/03f4ca17-de95-428d-a75a-4ee78b047256.json","kind":"sigma"}