{"id":"01c42d3c-242d-4655-85b2-34f1739632f7","title":"Potentially Over Permissive Permissions Granted Using Dsacls.EXE","description":"Detects usage of Dsacls to grant over permissive permissions","author":"Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"medium","date":"2022-06-20","modified":"2023-02-04","tags":["attack.stealth","attack.t1218"],"technique_ids":["T1218"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Legitimate administrators granting over permissive permissions to users"],"references":["https://ss64.com/nt/dsacls.html","https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/cc771151(v=ws.11)"],"source_path":"rules/windows/process_creation/proc_creation_win_dsacls_abuse_permissions.yml","source_sha256":"e4a37870ef5e853f1d056d1e4ac61e22f8f0cf7ed0eb6c27f5e974c70116cd49","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_dsacls_abuse_permissions.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Potentially Over Permissive Permissions Granted Using Dsacls.EXE\nid: 01c42d3c-242d-4655-85b2-34f1739632f7\nstatus: test\ndescription: Detects usage of Dsacls to grant over permissive permissions\nreferences:\n    - https://ss64.com/nt/dsacls.html\n    - https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/cc771151(v=ws.11)\nauthor: Nasreddine Bencherchali (Nextron Systems)\ndate: 2022-06-20\nmodified: 2023-02-04\ntags:\n    - attack.stealth\n    - attack.t1218\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_img:\n        - Image|endswith: '\\dsacls.exe'\n        - OriginalFileName: \"DSACLS.EXE\"\n    selection_flag:\n        CommandLine|contains: ' /G '\n    selection_permissions:\n        CommandLine|contains: # Add more permissions as you see fit in your environment\n            - 'GR'\n            - 'GE'\n            - 'GW'\n            - 'GA'\n            - 'WP'\n            - 'WD'\n    condition: all of selection_*\nfalsepositives:\n    - Legitimate administrators granting over permissive permissions to users\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1218","id":"T1218","name":"System Binary Proxy Execution","page":"techniques/enterprise/T1218/"}],"data_path":"data/detection-rules/01c42d3c-242d-4655-85b2-34f1739632f7.json","kind":"sigma"}