cscli scenarios install sigmahq/proc_creation_win_bcdedit_boot_conf_tamper1type: trigger2name: sigmahq/proc_creation_win_bcdedit_boot_conf_tamper3description: |4 Detects the use of the bcdedit command to tamper with the boot configuration data. This technique is often times used by malware or attackers as a destructive way before launching ransomware.5filter: |6 (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && ((evt.Parsed.Image endsWith '\\bcdedit.exe' || evt.Parsed.OriginalFileName == 'bcdedit.exe') && evt.Parsed.CommandLine contains 'set' && (evt.Parsed.CommandLine contains 'bootstatuspolicy' && evt.Parsed.CommandLine contains 'ignoreallfailures' || evt.Parsed.CommandLine contains 'recoveryenabled' && evt.Parsed.CommandLine contains 'no'))7blackhole: 2m8#status: stable9labels:10 service: windows11 confidence: 212 spoofable: 013 classification:14 - attack.t14901516 label: "Boot Configuration Tampering Via Bcdedit.EXE"17 behavior : "windows:audit"18 remediation: false1920scope:21 type: ParentProcessId22 expression: evt.Parsed.ParentProcessId2324