{"id":"f38ce0b9-5e97-4b47-a211-7dc8d8b871da","title":"Potential RDP Tunneling Via Plink","description":"Execution of plink to perform data exfiltration and tunneling","author":"Florian Roth (Nextron Systems)","status":"test","level":"high","date":"2022-08-04","modified":"2023-01-27","tags":["attack.command-and-control","attack.t1572"],"technique_ids":["T1572"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://www.microsoft.com/security/blog/2022/07/26/malicious-iis-extensions-quietly-open-persistent-backdoors-into-servers/"],"source_path":"rules/windows/process_creation/proc_creation_win_plink_susp_tunneling.yml","source_sha256":"9a20c0263b721009d750791e382fc8d97beabc76f4d8e0b0b90c00f156db0536","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_plink_susp_tunneling.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Potential RDP Tunneling Via Plink\nid: f38ce0b9-5e97-4b47-a211-7dc8d8b871da\nrelated:\n    - id: f7d7ebd5-a016-46e2-9c54-f9932f2d386d # ssh.exe\n      type: similar\nstatus: test\ndescription: Execution of plink to perform data exfiltration and tunneling\nreferences:\n    - https://www.microsoft.com/security/blog/2022/07/26/malicious-iis-extensions-quietly-open-persistent-backdoors-into-servers/\nauthor: Florian Roth (Nextron Systems)\ndate: 2022-08-04\nmodified: 2023-01-27\ntags:\n    - attack.command-and-control\n    - attack.t1572\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_a:\n        Image|endswith: '\\plink.exe'\n        CommandLine|contains: ':127.0.0.1:3389'\n    selection_b1:\n        Image|endswith: '\\plink.exe'\n        CommandLine|contains: ':3389'\n    selection_b2:\n        CommandLine|contains:\n            - ' -P 443'\n            - ' -P 22'\n    condition: selection_a or all of selection_b*\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1572","id":"T1572","name":"Protocol Tunneling","page":"techniques/enterprise/T1572/"}],"data_path":"data/detection-rules/f38ce0b9-5e97-4b47-a211-7dc8d8b871da.json","kind":"sigma"}