cscli scenarios install sigmahq/proc_creation_win_powershell_token_obfuscation1type: trigger2name: sigmahq/proc_creation_win_powershell_token_obfuscation3description: |4 Detects TOKEN OBFUSCATION technique from Invoke-Obfuscation5filter: |6 (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && ((evt.Parsed.CommandLine matches '\\w+`(\\w+|-|.)`[\\w+|\\s]' || evt.Parsed.CommandLine matches '"(\\{\\d\\})+"\\s*-f' || evt.Parsed.CommandLine matches '(?i)\\$\\{`?e`?n`?v`?:`?p`?a`?t`?h`?\\}') && not (evt.Parsed.CommandLine contains '${env:path}'))7blackhole: 2m8#status: test9labels:10 service: windows11 confidence: 112 spoofable: 013 classification:14 - attack.t1027.0091516 label: "Powershell Token Obfuscation - Process Creation"17 behavior : "windows:audit"18 remediation: false1920scope:21 type: ParentProcessId22 expression: evt.Parsed.ParentProcessId2324