{"id":"fcdf69e5-a3d3-452a-9724-26f2308bf2b1","title":"Phishing Pattern ISO in Archive","description":"Detects cases in which an ISO files is opend within an archiver like 7Zip or Winrar, which is a sign of phishing as threat actors put small ISO files in archives as email attachments to bypass certain filters and protective measures (mark of web)","author":"Florian Roth (Nextron Systems)","status":"test","level":"high","date":"2022-06-07","modified":"","tags":["attack.initial-access","attack.t1566"],"technique_ids":["T1566"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Legitimate cases in which archives contain ISO or IMG files and the user opens the archive and the image via clicking and not extraction"],"references":["https://twitter.com/1ZRR4H/status/1534259727059787783","https://app.any.run/tasks/e1fe6a62-bce8-4323-a49a-63795d9afd5d/"],"source_path":"rules/windows/process_creation/proc_creation_win_susp_archiver_iso_phishing.yml","source_sha256":"ff6e430b340a9c56810363acc28e7f7761e9a784c630c8a1eadcf4bd48dc85fb","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_susp_archiver_iso_phishing.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Phishing Pattern ISO in Archive\nid: fcdf69e5-a3d3-452a-9724-26f2308bf2b1\nstatus: test\ndescription: Detects cases in which an ISO files is opend within an archiver like 7Zip or Winrar, which is a sign of phishing as threat actors put small ISO files in archives as email attachments to bypass certain filters and protective measures (mark of web)\nreferences:\n    - https://twitter.com/1ZRR4H/status/1534259727059787783\n    - https://app.any.run/tasks/e1fe6a62-bce8-4323-a49a-63795d9afd5d/\nauthor: Florian Roth (Nextron Systems)\ndate: 2022-06-07\ntags:\n    - attack.initial-access\n    - attack.t1566\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        ParentImage|endswith:\n            - '\\Winrar.exe'\n            - '\\7zFM.exe'\n            - '\\peazip.exe'\n        Image|endswith:\n            - '\\isoburn.exe'\n            - '\\PowerISO.exe'\n            - '\\ImgBurn.exe'\n    condition: selection\nfalsepositives:\n    - Legitimate cases in which archives contain ISO or IMG files and the user opens the archive and the image via clicking and not extraction\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1566","id":"T1566","name":"Phishing","page":"techniques/enterprise/T1566/"}],"data_path":"data/detection-rules/fcdf69e5-a3d3-452a-9724-26f2308bf2b1.json","kind":"sigma"}