{"id":"f9999590-1f94-4a34-a91e-951e47bedefd","title":"Suspicious Provlaunch.EXE Child Process","description":"Detects suspicious child processes of \"provlaunch.exe\" which might indicate potential abuse to proxy execution.","author":"Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"high","date":"2023-08-08","modified":"","tags":["attack.stealth","attack.t1218"],"technique_ids":["T1218"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://lolbas-project.github.io/lolbas/Binaries/Provlaunch/","https://twitter.com/0gtweet/status/1674399582162153472"],"source_path":"rules/windows/process_creation/proc_creation_win_provlaunch_susp_child_process.yml","source_sha256":"ebbee50d8baaf88dab05719b3014287afb25a322fe07fce29c80a763e71f6e1d","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_provlaunch_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: Suspicious Provlaunch.EXE Child Process\nid: f9999590-1f94-4a34-a91e-951e47bedefd\nrelated:\n    - id: 7f5d1c9a-3e83-48df-95a7-2b98aae6c13c # CLI Generic\n      type: similar\n    - id: 2a4b3e61-9d22-4e4a-b60f-6e8f0cde6f25 # CLI Registry\n      type: similar\n    - id: 7021255e-5db3-4946-a8b9-0ba7a4644a69 # Registry\n      type: similar\nstatus: test\ndescription: Detects suspicious child processes of \"provlaunch.exe\" which might indicate potential abuse to proxy execution.\nreferences:\n    - https://lolbas-project.github.io/lolbas/Binaries/Provlaunch/\n    - https://twitter.com/0gtweet/status/1674399582162153472\nauthor: Nasreddine Bencherchali (Nextron Systems)\ndate: 2023-08-08\ntags:\n    - attack.stealth\n    - attack.t1218\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_parent:\n        ParentImage|endswith: '\\provlaunch.exe'\n    selection_child:\n        - Image|endswith:\n              - '\\calc.exe'\n              - '\\cmd.exe'\n              - '\\cscript.exe'\n              - '\\mshta.exe'\n              - '\\notepad.exe'\n              - '\\powershell.exe'\n              - '\\pwsh.exe'\n              - '\\regsvr32.exe'\n              - '\\rundll32.exe'\n              - '\\wscript.exe'\n        - Image|contains:\n              - ':\\PerfLogs\\'\n              - ':\\Temp\\'\n              - ':\\Users\\Public\\'\n              - '\\AppData\\Temp\\'\n              - '\\Windows\\System32\\Tasks\\'\n              - '\\Windows\\Tasks\\'\n              - '\\Windows\\Temp\\'\n    condition: all of selection_*\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1218","id":"T1218","name":"System Binary Proxy Execution","page":"techniques/enterprise/T1218/"}],"data_path":"data/detection-rules/f9999590-1f94-4a34-a91e-951e47bedefd.json","kind":"sigma"}