{"id":"f0507c0f-a3a2-40f5-acc6-7f543c334993","title":"Suspicious File Execution From Internet Hosted WebDav Share","description":"Detects the execution of the \"net use\" command to mount a WebDAV server and then immediately execute some content in it. As seen being used in malicious LNK files","author":"pH-T (Nextron Systems)","status":"test","level":"high","date":"2022-09-01","modified":"2023-02-21","tags":["attack.execution","attack.t1059.001"],"technique_ids":["T1059.001"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://twitter.com/ShadowChasing1/status/1552595370961944576","https://www.virustotal.com/gui/file/a63376ee1dba76361df73338928e528ca5b20171ea74c24581605366dcaa0104/behavior"],"source_path":"rules/windows/process_creation/proc_creation_win_cmd_net_use_and_exec_combo.yml","source_sha256":"f13bed6d00409c8104bfebe2934f48f9bcd9557a802e7c6bcfd1f3c2f5cfdb2d","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_cmd_net_use_and_exec_combo.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 Execution From Internet Hosted WebDav Share\nid: f0507c0f-a3a2-40f5-acc6-7f543c334993\nstatus: test\ndescription: Detects the execution of the \"net use\" command to mount a WebDAV server and then immediately execute some content in it. As seen being used in malicious LNK files\nreferences:\n    - https://twitter.com/ShadowChasing1/status/1552595370961944576\n    - https://www.virustotal.com/gui/file/a63376ee1dba76361df73338928e528ca5b20171ea74c24581605366dcaa0104/behavior\nauthor: pH-T (Nextron Systems)\ndate: 2022-09-01\nmodified: 2023-02-21\ntags:\n    - attack.execution\n    - attack.t1059.001\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_img:\n        - Image|contains: '\\cmd.exe'\n        - OriginalFileName: 'Cmd.EXE'\n    selection_base:\n        CommandLine|contains|all:\n            - ' net use http'\n            - '& start /b '\n            - '\\DavWWWRoot\\'\n    selection_ext:\n        CommandLine|contains:\n            - '.exe '\n            - '.dll '\n            - '.bat '\n            - '.vbs '\n            - '.ps1 '\n    condition: all of selection_*\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1059.001","id":"T1059.001","name":"PowerShell","page":"techniques/enterprise/T1059.001/"}],"data_path":"data/detection-rules/f0507c0f-a3a2-40f5-acc6-7f543c334993.json","kind":"sigma"}