cscli scenarios install sigmahq/proc_creation_win_msra_process_injection1type: trigger2name: sigmahq/proc_creation_win_msra_process_injection3description: |4 Detects potential process injection via Microsoft Remote Asssistance (Msra.exe) by looking at suspicious child processes spawned from the aforementioned process. It has been a target used by many threat actors and used for discovery and persistence tactics5filter: |6 (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && (evt.Parsed.ParentImage endsWith '\\msra.exe' && evt.Parsed.ParentCommandLine endsWith 'msra.exe' && (evt.Parsed.Image endsWith '\\arp.exe' || evt.Parsed.Image endsWith '\\cmd.exe' || evt.Parsed.Image endsWith '\\net.exe' || evt.Parsed.Image endsWith '\\netstat.exe' || evt.Parsed.Image endsWith '\\nslookup.exe' || evt.Parsed.Image endsWith '\\route.exe' || evt.Parsed.Image endsWith '\\schtasks.exe' || evt.Parsed.Image endsWith '\\whoami.exe'))7blackhole: 2m8#status: test9labels:10 service: windows11 confidence: 112 spoofable: 013 classification:14 - attack.t10551516 label: "Potential Process Injection Via Msra.EXE"17 behavior : "windows:audit"18 remediation: false1920scope:21 type: ParentProcessId22 expression: evt.Parsed.ParentProcessId2324