cscli scenarios install sigmahq/proc_creation_win_schtasks_delete1type: trigger2name: sigmahq/proc_creation_win_schtasks_delete3description: |4 Detects when adversaries stop services or processes by deleting their respective scheduled tasks in order to conduct data destructive activities5filter: |6 (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && (evt.Parsed.Image endsWith '\\schtasks.exe' && evt.Parsed.CommandLine contains '/delete' && evt.Parsed.CommandLine contains '/tn' && (evt.Parsed.CommandLine contains '\\Windows\\BitLocker' || evt.Parsed.CommandLine contains '\\Windows\\ExploitGuard' || evt.Parsed.CommandLine contains '\\Windows\\SystemRestore\\SR' || evt.Parsed.CommandLine contains '\\Windows\\UpdateOrchestrator\\' || evt.Parsed.CommandLine contains '\\Windows\\Windows Defender\\' || evt.Parsed.CommandLine contains '\\Windows\\WindowsBackup\\' || evt.Parsed.CommandLine contains '\\Windows\\WindowsUpdate\\'))7blackhole: 2m8#status: test9labels:10 service: windows11 confidence: 112 spoofable: 013 classification:14 - attack.t14891516 label: "Delete Important Scheduled Task"17 behavior : "windows:audit"18 remediation: false1920scope:21 type: ParentProcessId22 expression: evt.Parsed.ParentProcessId2324