{"id":"79b06761-465f-4f88-9ef2-150e24d3d737","title":"Potential SysInternals ProcDump Evasion","description":"Detects uses of the SysInternals ProcDump utility in which ProcDump or its output get renamed, or a dump file is moved or copied to a different name","author":"Florian Roth (Nextron Systems)","status":"test","level":"high","date":"2022-01-11","modified":"2023-05-09","tags":["attack.stealth","attack.t1036","attack.t1003.001","attack.credential-access"],"technique_ids":["T1003.001","T1036"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["False positives are expected in cases in which ProcDump just gets copied to a different directory without any renaming"],"references":["https://twitter.com/mrd0x/status/1480785527901204481"],"source_path":"rules/windows/process_creation/proc_creation_win_sysinternals_procdump_evasion.yml","source_sha256":"f2674f4d33d78ce5f6da477d67a0be784b389074490ee82b85e50305176b0c41","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_sysinternals_procdump_evasion.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 SysInternals ProcDump Evasion\nid: 79b06761-465f-4f88-9ef2-150e24d3d737\nstatus: test\ndescription: Detects uses of the SysInternals ProcDump utility in which ProcDump or its output get renamed, or a dump file is moved or copied to a different name\nreferences:\n    - https://twitter.com/mrd0x/status/1480785527901204481\nauthor: Florian Roth (Nextron Systems)\ndate: 2022-01-11\nmodified: 2023-05-09\ntags:\n    - attack.stealth\n    - attack.t1036\n    - attack.t1003.001\n    - attack.credential-access\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_1:\n        CommandLine|contains:\n            - 'copy procdump'\n            - 'move procdump'\n    selection_2:\n        CommandLine|contains|all:\n            - 'copy '\n            - '.dmp '\n        CommandLine|contains:\n            - '2.dmp'\n            - 'lsass'\n            - 'out.dmp'\n    selection_3:\n        CommandLine|contains:\n            - 'copy lsass.exe_'  # procdump default pattern e.g. lsass.exe_220111_085234.dmp\n            - 'move lsass.exe_'  # procdump default pattern e.g. lsass.exe_220111_085234.dmp\n    condition: 1 of selection_*\nfalsepositives:\n    - False positives are expected in cases in which ProcDump just gets copied to a different directory without any renaming\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/79b06761-465f-4f88-9ef2-150e24d3d737.json","kind":"sigma"}