{"id":"37db85d1-b089-490a-a59a-c7b6f984f480","title":"Sysmon Discovery Via Default Driver Altitude Using Findstr.EXE","description":"Detects usage of \"findstr\" with the argument \"385201\". Which could indicate potential discovery of an installed Sysinternals Sysmon service using the default driver altitude (even if the name is changed).","author":"frack113","status":"test","level":"high","date":"2021-12-16","modified":"2023-11-14","tags":["attack.discovery","attack.t1518.001"],"technique_ids":["T1518.001"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1518.001/T1518.001.md#atomic-test-5---security-software-discovery---sysmon-service"],"source_path":"rules/windows/process_creation/proc_creation_win_findstr_sysmon_discovery_via_default_altitude.yml","source_sha256":"f57554d6754814b697859e4b8bb14989896b9c4e83962e55b032da6bd6edf0f9","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_findstr_sysmon_discovery_via_default_altitude.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Sysmon Discovery Via Default Driver Altitude Using Findstr.EXE\nid: 37db85d1-b089-490a-a59a-c7b6f984f480\nstatus: test\ndescription: Detects usage of \"findstr\" with the argument \"385201\". Which could indicate potential discovery of an installed Sysinternals Sysmon service using the default driver altitude (even if the name is changed).\nreferences:\n    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1518.001/T1518.001.md#atomic-test-5---security-software-discovery---sysmon-service\nauthor: frack113\ndate: 2021-12-16\nmodified: 2023-11-14\ntags:\n    - attack.discovery\n    - attack.t1518.001\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_img:\n        - Image|endswith:\n              - '\\find.exe'\n              - '\\findstr.exe'\n        - OriginalFileName:\n              - 'FIND.EXE'\n              - 'FINDSTR.EXE'\n    selection_cli:\n        CommandLine|contains: ' 385201' # Sysmon driver default altitude\n    condition: all of selection_*\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1518.001","id":"T1518.001","name":"Security Software Discovery","page":"techniques/enterprise/T1518.001/"}],"data_path":"data/detection-rules/37db85d1-b089-490a-a59a-c7b6f984f480.json","kind":"sigma"}