{"id":"09706624-b7f6-455d-9d02-adee024cee1d","title":"HackTool - CobaltStrike BOF Injection Pattern","description":"Detects a typical pattern of a CobaltStrike BOF which inject into other processes","author":"Christian Burkard (Nextron Systems)","status":"test","level":"high","date":"2021-08-04","modified":"2023-11-28","tags":["attack.execution","attack.defense-impairment","attack.t1106","attack.t1685"],"technique_ids":["T1106","T1685"],"logsource":{"category":"process_access","product":"windows"},"falsepositives":["Unknown"],"references":["https://github.com/boku7/injectAmsiBypass","https://github.com/boku7/spawn"],"source_path":"rules/windows/process_access/proc_access_win_hktl_cobaltstrike_bof_injection_pattern.yml","source_sha256":"d18552cbc407cbba645c369f88a58e3ee6f4bc33c959d530047736b426e229b2","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_access/proc_access_win_hktl_cobaltstrike_bof_injection_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 - CobaltStrike BOF Injection Pattern\nid: 09706624-b7f6-455d-9d02-adee024cee1d\nstatus: test\ndescription: Detects a typical pattern of a CobaltStrike BOF which inject into other processes\nreferences:\n    - https://github.com/boku7/injectAmsiBypass\n    - https://github.com/boku7/spawn\nauthor: Christian Burkard (Nextron Systems)\ndate: 2021-08-04\nmodified: 2023-11-28\ntags:\n    - attack.execution\n    - attack.defense-impairment\n    - attack.t1106\n    - attack.t1685\nlogsource:\n    category: process_access\n    product: windows\ndetection:\n    selection:\n        CallTrace|re: '^C:\\\\Windows\\\\SYSTEM32\\\\ntdll\\.dll\\+[a-z0-9]{4,6}\\|C:\\\\Windows\\\\System32\\\\KERNELBASE\\.dll\\+[a-z0-9]{4,6}\\|UNKNOWN\\([A-Z0-9]{16}\\)$'\n        GrantedAccess:\n            - '0x1028'\n            - '0x1fffff'\n    condition: selection\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1106","id":"T1106","name":"Native API","page":"techniques/enterprise/T1106/"},{"key":"enterprise/T1685","id":"T1685","name":"Disable or Modify Tools","page":"techniques/enterprise/T1685/"}],"data_path":"data/detection-rules/09706624-b7f6-455d-9d02-adee024cee1d.json","kind":"sigma"}