{"id":"b86f6dea-0b2f-41f5-bdcc-a057bd19cd6a","title":"File Download From IP Based URL Via CertOC.EXE","description":"Detects when a user downloads a file from an IP based URL using CertOC.exe","author":"Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"high","date":"2023-10-18","modified":"","tags":["attack.command-and-control","attack.execution","attack.t1105"],"technique_ids":["T1105"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://lolbas-project.github.io/lolbas/Binaries/Certoc/"],"source_path":"rules/windows/process_creation/proc_creation_win_certoc_download_direct_ip.yml","source_sha256":"cbe89a97c30152a6cc3013df3fb896506a7deda8766a761639d6f94c7062ffd1","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_certoc_download_direct_ip.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: File Download From IP Based URL Via CertOC.EXE\nid: b86f6dea-0b2f-41f5-bdcc-a057bd19cd6a\nrelated:\n    - id: 70ad0861-d1fe-491c-a45f-fa48148a300d\n      type: similar\nstatus: test\ndescription: Detects when a user downloads a file from an IP based URL using CertOC.exe\nreferences:\n    - https://lolbas-project.github.io/lolbas/Binaries/Certoc/\nauthor: Nasreddine Bencherchali (Nextron Systems)\ndate: 2023-10-18\ntags:\n    - attack.command-and-control\n    - attack.execution\n    - attack.t1105\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_img:\n        - Image|endswith: '\\certoc.exe'\n        - OriginalFileName: 'CertOC.exe'\n    selection_ip:\n        CommandLine|re: '://[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}'\n    selection_cli:\n        CommandLine|contains: '-GetCACAPS'\n    condition: all of selection*\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1105","id":"T1105","name":"Ingress Tool Transfer","page":"techniques/enterprise/T1105/"}],"data_path":"data/detection-rules/b86f6dea-0b2f-41f5-bdcc-a057bd19cd6a.json","kind":"sigma"}