{"id":"b18c9d4c-fac9-4708-bd06-dd5bfacf200f","title":"HackTool - F-Secure C3 Load by Rundll32","description":"F-Secure C3 produces DLLs with a default exported StartNodeRelay function.","author":"Alfie Champion (ajpc500)","status":"test","level":"critical","date":"2021-06-02","modified":"2023-03-05","tags":["attack.stealth","attack.t1218.011"],"technique_ids":["T1218.011"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://github.com/FSecureLABS/C3/blob/11a081fd3be2aaf2a879f6b6e9a96ecdd24966ef/Src/NodeRelayDll/NodeRelayDll.cpp#L12"],"source_path":"rules/windows/process_creation/proc_creation_win_hktl_c3_rundll32_pattern.yml","source_sha256":"ac8341241bbe26f57479b3ecc491d6a17c6f9ad7c87c353f3f453dd3a1c63b65","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_hktl_c3_rundll32_pattern.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: HackTool - F-Secure C3 Load by Rundll32\nid: b18c9d4c-fac9-4708-bd06-dd5bfacf200f\nstatus: test\ndescription: F-Secure C3 produces DLLs with a default exported StartNodeRelay function.\nreferences:\n    - https://github.com/FSecureLABS/C3/blob/11a081fd3be2aaf2a879f6b6e9a96ecdd24966ef/Src/NodeRelayDll/NodeRelayDll.cpp#L12\nauthor: Alfie Champion (ajpc500)\ndate: 2021-06-02\nmodified: 2023-03-05\ntags:\n    - attack.stealth\n    - attack.t1218.011\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        CommandLine|contains|all:\n            - 'rundll32.exe'\n            - '.dll'\n            - 'StartNodeRelay'\n    condition: selection\nfalsepositives:\n    - Unknown\nlevel: critical\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1218.011","id":"T1218.011","name":"Rundll32","page":"techniques/enterprise/T1218.011/"}],"data_path":"data/detection-rules/b18c9d4c-fac9-4708-bd06-dd5bfacf200f.json","kind":"sigma"}