{"id":"16c37b52-b141-42a5-a3ea-bbe098444397","title":"Suspect Svchost Activity","description":"It is extremely abnormal for svchost.exe to spawn without any CLI arguments and is normally observed when a malicious process spawns the process and injects code into the process memory space.","author":"David Burkett, @signalblur","status":"test","level":"high","date":"2019-12-28","modified":"2022-06-27","tags":["attack.privilege-escalation","attack.stealth","attack.t1055"],"technique_ids":["T1055"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Rpcnet.exe / rpcnetp.exe which is a lojack style software. https://www.blackhat.com/docs/us-14/materials/us-14-Kamlyuk-Kamluk-Computrace-Backdoor-Revisited.pdf"],"references":["https://web.archive.org/web/20180718061628/https://securitybytes.io/blue-team-fundamentals-part-two-windows-processes-759fe15965e2"],"source_path":"rules/windows/process_creation/proc_creation_win_svchost_execution_with_no_cli_flags.yml","source_sha256":"ef11ccdb615222468d53b68b9f8b27ce3638e4704ac95c099747967565d04fa9","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_svchost_execution_with_no_cli_flags.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Suspect Svchost Activity\nid: 16c37b52-b141-42a5-a3ea-bbe098444397\nstatus: test\ndescription: It is extremely abnormal for svchost.exe to spawn without any CLI arguments and is normally observed when a malicious process spawns the process and injects code into the process memory space.\nreferences:\n    - https://web.archive.org/web/20180718061628/https://securitybytes.io/blue-team-fundamentals-part-two-windows-processes-759fe15965e2\nauthor: David Burkett, @signalblur\ndate: 2019-12-28\nmodified: 2022-06-27\ntags:\n    - attack.privilege-escalation\n    - attack.stealth\n    - attack.t1055\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        CommandLine|endswith: 'svchost.exe'\n        Image|endswith: '\\svchost.exe'\n    filter:\n        - ParentImage|endswith:\n              - '\\rpcnet.exe'\n              - '\\rpcnetp.exe'\n        - CommandLine: null  # no CommandLine value available\n    condition: selection and not filter\nfalsepositives:\n    - Rpcnet.exe / rpcnetp.exe which is a lojack style software. https://www.blackhat.com/docs/us-14/materials/us-14-Kamlyuk-Kamluk-Computrace-Backdoor-Revisited.pdf\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1055","id":"T1055","name":"Process Injection","page":"techniques/enterprise/T1055/"}],"data_path":"data/detection-rules/16c37b52-b141-42a5-a3ea-bbe098444397.json","kind":"sigma"}