1type: trigger
2name: sigmahq/proc_creation_win_office_excel_dcom_lateral_movement
3description: |
4  Detects suspicious child processes of Excel which could be an indicator of lateral movement leveraging the "ActivateMicrosoftApp" Excel DCOM object. 
5filter: |
6  (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && (evt.Parsed.ParentImage endsWith '\\excel.exe' && (evt.Parsed.OriginalFileName in ['foxprow.exe', 'schdplus.exe', 'winproj.exe'] || evt.Parsed.Image endsWith '\\foxprow.exe' || evt.Parsed.Image endsWith '\\schdplus.exe' || evt.Parsed.Image endsWith '\\winproj.exe'))
7blackhole: 2m
8#status: test
9labels:
10  service: windows
11  confidence: 1
12  spoofable: 0
13  classification:
14   - attack.t1021.003
15
16  label: "Potential Excel.EXE DCOM Lateral Movement Via ActivateMicrosoftApp"
17  behavior : "windows:audit"
18  remediation: false
19
20scope:
21  type: ParentProcessId
22  expression: evt.Parsed.ParentProcessId
23
24