cscli scenarios install sigmahq/proc_creation_win_mshta_http1type: trigger2name: sigmahq/proc_creation_win_mshta_http3description: |4 Detects execution of the "mshta" utility with an argument containing the "http" keyword, which could indicate that an attacker is executing a remotely hosted malicious hta file5filter: |6 (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && ((evt.Parsed.Image endsWith '\\mshta.exe' || evt.Parsed.OriginalFileName == 'MSHTA.EXE') && (evt.Parsed.CommandLine contains 'http://' || evt.Parsed.CommandLine contains 'https://' || evt.Parsed.CommandLine contains 'ftp://'))7blackhole: 2m8#status: test9labels:10 service: windows11 confidence: 112 spoofable: 013 classification:14 - attack.t1218.0051516 label: "Remotely Hosted HTA File Executed Via Mshta.EXE"17 behavior : "windows:audit"18 remediation: false1920scope:21 type: ParentProcessId22 expression: evt.Parsed.ParentProcessId2324