{"id":"ca5583e9-8f80-46ac-ab91-7f314d13b984","title":"Potentially Suspicious Child Process of KeyScrambler.exe","description":"Detects potentially suspicious child processes of KeyScrambler.exe","author":"Swachchhanda Shrawan Poudel","status":"test","level":"medium","date":"2024-05-13","modified":"","tags":["attack.persistence","attack.execution","attack.privilege-escalation","attack.stealth","attack.t1203","attack.t1574.001"],"technique_ids":["T1203","T1574.001"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://twitter.com/DTCERT/status/1712785421845790799"],"source_path":"rules/windows/process_creation/proc_creation_win_keyscrambler_susp_child_process.yml","source_sha256":"8eb9fb7575915185db998dee1c5a48df4adad62594502c46d3d0ef6ca0056caf","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_keyscrambler_susp_child_process.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Potentially Suspicious Child Process of KeyScrambler.exe\nid: ca5583e9-8f80-46ac-ab91-7f314d13b984\nrelated:\n    - id: d2451be2-b582-4e15-8701-4196ac180260\n      type: similar\nstatus: test\ndescription: Detects potentially suspicious child processes of KeyScrambler.exe\nreferences:\n    - https://twitter.com/DTCERT/status/1712785421845790799\nauthor: Swachchhanda Shrawan Poudel\ndate: 2024-05-13\ntags:\n    - attack.persistence\n    - attack.execution\n    - attack.privilege-escalation\n    - attack.stealth\n    - attack.t1203\n    - attack.t1574.001\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_parent:\n        ParentImage|endswith: '\\KeyScrambler.exe'\n    selection_binaries:\n        # Note: add additional binaries that the attacker might use\n        - Image|endswith:\n              - '\\cmd.exe'\n              - '\\cscript.exe'\n              - '\\mshta.exe'\n              - '\\powershell.exe'\n              - '\\pwsh.exe'\n              - '\\regsvr32.exe'\n              - '\\rundll32.exe'\n              - '\\wscript.exe'\n        - OriginalFileName:\n              - 'Cmd.Exe'\n              - 'cscript.exe'\n              - 'mshta.exe'\n              - 'PowerShell.EXE'\n              - 'pwsh.dll'\n              - 'regsvr32.exe'\n              - 'RUNDLL32.EXE'\n              - 'wscript.exe'\n    condition: all of selection_*\nfalsepositives:\n    - Unknown\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1203","id":"T1203","name":"Exploitation for Client Execution","page":"techniques/enterprise/T1203/"},{"key":"enterprise/T1574.001","id":"T1574.001","name":"DLL","page":"techniques/enterprise/T1574.001/"}],"data_path":"data/detection-rules/ca5583e9-8f80-46ac-ab91-7f314d13b984.json","kind":"sigma"}