{"id":"a6976974-ea6f-4e97-818e-ea08625c52cb","title":"Potential RipZip Attack on Startup Folder","description":"Detects a phishing attack which expands a ZIP file containing a malicious shortcut.\nIf the victim expands the ZIP file via the explorer process, then the explorer process expands the malicious ZIP file and drops a malicious shortcut redirected to a backdoor into the Startup folder.\nAdditionally, the file name of the malicious shortcut in Startup folder contains {0AFACED1-E828-11D1-9187-B532F1E9575D} meaning the folder shortcut operation.\n","author":"Greg (rule)","status":"test","level":"high","date":"2022-07-21","modified":"2023-01-05","tags":["attack.privilege-escalation","attack.persistence","attack.t1547"],"technique_ids":["T1547"],"logsource":{"category":"file_event","product":"windows"},"falsepositives":["Unknown"],"references":["https://twitter.com/jonasLyk/status/1549338335243534336?t=CrmPocBGLbDyE4p6zTX1cg&s=19"],"source_path":"rules/windows/file/file_event/file_event_win_ripzip_attack.yml","source_sha256":"c4a6c889bb80ff909463e89ccc199827686a2d3c61e17230502d23e11d14fb45","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/file/file_event/file_event_win_ripzip_attack.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Potential RipZip Attack on Startup Folder\nid: a6976974-ea6f-4e97-818e-ea08625c52cb\nstatus: test\ndescription: |\n    Detects a phishing attack which expands a ZIP file containing a malicious shortcut.\n    If the victim expands the ZIP file via the explorer process, then the explorer process expands the malicious ZIP file and drops a malicious shortcut redirected to a backdoor into the Startup folder.\n    Additionally, the file name of the malicious shortcut in Startup folder contains {0AFACED1-E828-11D1-9187-B532F1E9575D} meaning the folder shortcut operation.\nreferences:\n    - https://twitter.com/jonasLyk/status/1549338335243534336?t=CrmPocBGLbDyE4p6zTX1cg&s=19\nauthor: Greg (rule)\ndate: 2022-07-21\nmodified: 2023-01-05\ntags:\n    - attack.privilege-escalation\n    - attack.persistence\n    - attack.t1547\nlogsource:\n    category: file_event\n    product: windows\ndetection:\n    selection: # %APPDATA%\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\target.lnk.{0AFACED1-E828-11D1-9187-B532F1E9575D}\\target.lnk\n        TargetFilename|contains|all:\n            - '\\Microsoft\\Windows\\Start Menu\\Programs\\Startup'\n            - '.lnk.{0AFACED1-E828-11D1-9187-B532F1E9575D}'\n        Image|endswith: '\\explorer.exe'\n    condition: selection\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1547","id":"T1547","name":"Boot or Logon Autostart Execution","page":"techniques/enterprise/T1547/"}],"data_path":"data/detection-rules/a6976974-ea6f-4e97-818e-ea08625c52cb.json","kind":"sigma"}