{"id":"bbb7e38c-0b41-4a11-b306-d2a457b7ac2b","title":"Suspicious File Created In PerfLogs","description":"Detects suspicious file based on their extension being created in \"C:\\PerfLogs\\\". Note that this directory mostly contains \".etl\" files","author":"Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"medium","date":"2023-05-05","modified":"","tags":["attack.execution","attack.t1059"],"technique_ids":["T1059"],"logsource":{"category":"file_event","product":"windows"},"falsepositives":["Unlikely"],"references":["Internal Research","https://labs.withsecure.com/publications/fin7-target-veeam-servers"],"source_path":"rules/windows/file/file_event/file_event_win_perflogs_susp_files.yml","source_sha256":"ee5db7abb1c78a05ea6b98af46c7f64d3f797d8e3f1a6743dc98b6a3757ad445","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/file/file_event/file_event_win_perflogs_susp_files.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 File Created In PerfLogs\nid: bbb7e38c-0b41-4a11-b306-d2a457b7ac2b\nstatus: test\ndescription: Detects suspicious file based on their extension being created in \"C:\\PerfLogs\\\". Note that this directory mostly contains \".etl\" files\nreferences:\n    - Internal Research\n    - https://labs.withsecure.com/publications/fin7-target-veeam-servers\nauthor: Nasreddine Bencherchali (Nextron Systems)\ndate: 2023-05-05\ntags:\n    - attack.execution\n    - attack.t1059\nlogsource:\n    category: file_event\n    product: windows\ndetection:\n    selection:\n        TargetFilename|startswith: 'C:\\PerfLogs\\'\n        TargetFilename|endswith:\n            - '.7z'\n            - '.bat'\n            - '.bin'\n            - '.chm'\n            - '.dll'\n            - '.exe'\n            - '.hta'\n            - '.lnk'\n            - '.ps1'\n            - '.psm1'\n            - '.py'\n            - '.scr'\n            - '.sys'\n            - '.vbe'\n            - '.vbs'\n            - '.zip'\n    condition: selection\nfalsepositives:\n    - Unlikely\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1059","id":"T1059","name":"Command and Scripting Interpreter","page":"techniques/enterprise/T1059/"}],"data_path":"data/detection-rules/bbb7e38c-0b41-4a11-b306-d2a457b7ac2b.json","kind":"sigma"}