{"id":"99c8be4f-3087-4f9f-9c24-8c7e257b442e","title":"Setup16.EXE Execution With Custom .Lst File","description":"Detects the execution of \"Setup16.EXE\" and old installation utility with a custom \".lst\" file.\nThese \".lst\" file can contain references to external program that \"Setup16.EXE\" will execute.\nAttackers and adversaries might leverage this as a living of the land utility.\n","author":"frack113","status":"test","level":"medium","date":"2024-12-01","modified":"","tags":["attack.privilege-escalation","attack.persistence","attack.execution","attack.stealth","attack.t1574.005"],"technique_ids":["T1574.005"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["On modern Windows system, the \"Setup16\" utility is practically never used, hence false positive should be very rare."],"references":["https://www.hexacorn.com/blog/2024/10/12/the-sweet16-the-oldbin-lolbin-called-setup16-exe/"],"source_path":"rules/windows/process_creation/proc_creation_win_setup16_custom_lst_execution.yml","source_sha256":"37e98a218be22edc01f9c790aff0c9da2b4a48be6b2a85e2400a13d867faa56c","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_setup16_custom_lst_execution.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Setup16.EXE Execution With Custom .Lst File\nid: 99c8be4f-3087-4f9f-9c24-8c7e257b442e\nstatus: test\ndescription: |\n    Detects the execution of \"Setup16.EXE\" and old installation utility with a custom \".lst\" file.\n    These \".lst\" file can contain references to external program that \"Setup16.EXE\" will execute.\n    Attackers and adversaries might leverage this as a living of the land utility.\nreferences:\n    - https://www.hexacorn.com/blog/2024/10/12/the-sweet16-the-oldbin-lolbin-called-setup16-exe/\nauthor: frack113\ndate: 2024-12-01\ntags:\n    - attack.privilege-escalation\n    - attack.persistence\n    - attack.execution\n    - attack.stealth\n    - attack.t1574.005\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        ParentImage: 'C:\\Windows\\SysWOW64\\setup16.exe'\n        ParentCommandLine|contains: ' -m '\n    filter_optional_valid_path:\n        Image|startswith: 'C:\\~MSSETUP.T\\'\n    condition: selection and not 1 of filter_optional_*\nfalsepositives:\n    - On modern Windows system, the \"Setup16\" utility is practically never used, hence false positive should be very rare.\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1574.005","id":"T1574.005","name":"Executable Installer File Permissions Weakness","page":"techniques/enterprise/T1574.005/"}],"data_path":"data/detection-rules/99c8be4f-3087-4f9f-9c24-8c7e257b442e.json","kind":"sigma"}