cscli scenarios install sigmahq/proc_creation_win_hktl_c3_rundll32_pattern1type: trigger2name: sigmahq/proc_creation_win_hktl_c3_rundll32_pattern3description: |4 F-Secure C3 produces DLLs with a default exported StartNodeRelay function.5filter: |6 (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && (evt.Parsed.CommandLine contains 'rundll32.exe' && evt.Parsed.CommandLine contains '.dll' && evt.Parsed.CommandLine contains 'StartNodeRelay')7blackhole: 2m8#status: test9labels:10 service: windows11 confidence: 112 spoofable: 013 classification:14 - attack.t1218.0111516 label: "HackTool - F-Secure C3 Load by Rundll32"17 behavior : "windows:audit"18 remediation: false1920scope:21 type: ParentProcessId22 expression: evt.Parsed.ParentProcessId2324