{"id":"eb1c4225-1c23-4241-8dd4-051389fde4ce","title":"Suspicious DumpMinitool Execution","description":"Detects suspicious ways to use the \"DumpMinitool.exe\" binary","author":"Florian Roth (Nextron Systems)","status":"test","level":"high","date":"2022-04-06","modified":"2023-04-12","tags":["attack.credential-access","attack.stealth","attack.t1036","attack.t1003.001"],"technique_ids":["T1003.001","T1036"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://twitter.com/mrd0x/status/1511415432888131586","https://twitter.com/mrd0x/status/1511489821247684615","https://lolbas-project.github.io/lolbas/OtherMSBinaries/DumpMinitool/"],"source_path":"rules/windows/process_creation/proc_creation_win_dumpminitool_susp_execution.yml","source_sha256":"706f1d70e9bcff69432172bdb695a53029d885e92579ff4d7267e469840fa0b7","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_dumpminitool_susp_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: Suspicious DumpMinitool Execution\nid: eb1c4225-1c23-4241-8dd4-051389fde4ce\nstatus: test\ndescription: Detects suspicious ways to use the \"DumpMinitool.exe\" binary\nreferences:\n    - https://twitter.com/mrd0x/status/1511415432888131586\n    - https://twitter.com/mrd0x/status/1511489821247684615\n    - https://lolbas-project.github.io/lolbas/OtherMSBinaries/DumpMinitool/\nauthor: Florian Roth (Nextron Systems)\ndate: 2022-04-06\nmodified: 2023-04-12\ntags:\n    - attack.credential-access\n    - attack.stealth\n    - attack.t1036\n    - attack.t1003.001\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        - Image|endswith:\n              - '\\DumpMinitool.exe'\n              - '\\DumpMinitool.x86.exe'\n              - '\\DumpMinitool.arm64.exe'\n        - OriginalFileName:\n              - 'DumpMinitool.exe'\n              - 'DumpMinitool.x86.exe'\n              - 'DumpMinitool.arm64.exe'\n    filter_folder:\n        Image|contains:\n            - '\\Microsoft Visual Studio\\'\n            - '\\Extensions\\'  # https://github.com/microsoft/vstest/blob/b2e2126f1aa7e5753cafe9515563c99ade6a59ce/src/package/nuspec/Microsoft.TestPlatform.Portable.nuspec#L159\n    susp_flags:\n        CommandLine|contains: '.txt'\n    cmd_has_flags:\n        CommandLine|contains:\n            - ' Full'\n            - ' Mini'\n            - ' WithHeap'\n    filter_cmd_misses_flags:\n        CommandLine|contains: '--dumpType'\n    condition: selection and ( ( not filter_folder ) or susp_flags or ( cmd_has_flags and not filter_cmd_misses_flags ) )\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/"},{"key":"enterprise/T1036","id":"T1036","name":"Masquerading","page":"techniques/enterprise/T1036/"}],"data_path":"data/detection-rules/eb1c4225-1c23-4241-8dd4-051389fde4ce.json","kind":"sigma"}