cscli scenarios install sigmahq/proc_creation_win_msiexec_masquerading1type: trigger2name: sigmahq/proc_creation_win_msiexec_masquerading3description: |4 Detects the execution of msiexec.exe from an uncommon directory5filter: |6 (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && ((evt.Parsed.Image endsWith '\\msiexec.exe' || evt.Parsed.OriginalFileName == '\\msiexec.exe') && not (evt.Parsed.Image startsWith 'C:\\Windows\\System32\\' || evt.Parsed.Image startsWith 'C:\\Windows\\SysWOW64\\' || evt.Parsed.Image startsWith 'C:\\Windows\\WinSxS\\'))7blackhole: 2m8#status: test9labels:10 service: windows11 confidence: 112 spoofable: 013 classification:14 - attack.t1036.0051516 label: "Potential MsiExec Masquerading"17 behavior : "windows:audit"18 remediation: false1920scope:21 type: ParentProcessId22 expression: evt.Parsed.ParentProcessId2324