{"id":"213d6a77-3d55-4ce8-ba74-fcfef741974e","title":"Private Keys Reconnaissance Via CommandLine Tools","description":"Adversaries may search for private key certificate files on compromised systems for insecurely stored credential","author":"frack113, Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"medium","date":"2021-07-20","modified":"2023-03-06","tags":["attack.credential-access","attack.t1552.004"],"technique_ids":["T1552.004"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1552.004/T1552.004.md"],"source_path":"rules/windows/process_creation/proc_creation_win_susp_private_keys_recon.yml","source_sha256":"379560506bae324e716da4df74a5d54fa75c647b9405cbc8d028035434b45147","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_susp_private_keys_recon.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Private Keys Reconnaissance Via CommandLine Tools\nid: 213d6a77-3d55-4ce8-ba74-fcfef741974e\nstatus: test\ndescription: Adversaries may search for private key certificate files on compromised systems for insecurely stored credential\nreferences:\n    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1552.004/T1552.004.md\nauthor: frack113, Nasreddine Bencherchali (Nextron Systems)\ndate: 2021-07-20\nmodified: 2023-03-06\ntags:\n    - attack.credential-access\n    - attack.t1552.004\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_cmd_img:\n        - Image|endswith: '\\cmd.exe'\n        - OriginalFileName: 'Cmd.Exe'\n    selection_cmd_cli:\n        CommandLine|contains: 'dir '\n    selection_pwsh_img:\n        - Image|endswith:\n              - '\\powershell.exe'\n              - '\\pwsh.exe'\n        - OriginalFileName:\n              - 'PowerShell.EXE'\n              - 'pwsh.dll'\n    selection_pwsh_cli:\n        CommandLine|contains: 'Get-ChildItem '\n    selection_findstr:\n        - Image|endswith: '\\findstr.exe'\n        - OriginalFileName: 'FINDSTR.EXE'\n    selection_ext:\n        CommandLine|contains:\n            - '.key'\n            - '.pgp'\n            - '.gpg'\n            - '.ppk'\n            - '.p12'\n            - '.pem'\n            - '.pfx'\n            - '.cer'\n            - '.p7b'\n            - '.asc'\n    condition: selection_ext and (all of selection_cmd_* or all of selection_pwsh_* or selection_findstr)\nfalsepositives:\n    - Unknown\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1552.004","id":"T1552.004","name":"Private Keys","page":"techniques/enterprise/T1552.004/"}],"data_path":"data/detection-rules/213d6a77-3d55-4ce8-ba74-fcfef741974e.json","kind":"sigma"}