{"id":"78f10490-f2f4-4d19-a75b-4e0683bf3b8d","title":"Suspicious Speech Runtime Binary Child Process","description":"Detects suspicious Speech Runtime Binary Execution by monitoring its child processes.\nChild processes spawned by SpeechRuntime.exe could indicate an attempt for lateral movement via COM & DCOM hijacking.\n","author":"andrewdanis","status":"experimental","level":"high","date":"2025-10-23","modified":"","tags":["attack.lateral-movement","attack.stealth","attack.t1021.003","attack.t1218"],"technique_ids":["T1021.003","T1218"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unlikely."],"references":["https://github.com/rtecCyberSec/SpeechRuntimeMove"],"source_path":"rules/windows/process_creation/proc_creation_win_speechruntime_child_process.yml","source_sha256":"2b32d2008e659ec6613ca69d7ca37cc420bcc9303d9f76ac22fba9c040021863","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_speechruntime_child_process.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 Speech Runtime Binary Child Process\nid: 78f10490-f2f4-4d19-a75b-4e0683bf3b8d\nstatus: experimental\ndescription: |\n    Detects suspicious Speech Runtime Binary Execution by monitoring its child processes.\n    Child processes spawned by SpeechRuntime.exe could indicate an attempt for lateral movement via COM & DCOM hijacking.\nreferences:\n    - https://github.com/rtecCyberSec/SpeechRuntimeMove\nauthor: andrewdanis\ndate: 2025-10-23\nlogsource:\n    category: process_creation\n    product: windows\ntags:\n    - attack.lateral-movement\n    - attack.stealth\n    - attack.t1021.003\n    - attack.t1218\ndetection:\n    selection:\n        ParentImage|endswith: '\\SpeechRuntime.exe'\n    condition: selection\nfalsepositives:\n    - Unlikely.\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1021.003","id":"T1021.003","name":"Distributed Component Object Model","page":"techniques/enterprise/T1021.003/"},{"key":"enterprise/T1218","id":"T1218","name":"System Binary Proxy Execution","page":"techniques/enterprise/T1218/"}],"data_path":"data/detection-rules/78f10490-f2f4-4d19-a75b-4e0683bf3b8d.json","kind":"sigma"}