1type: trigger
2name: sigmahq/proc_creation_win_powershell_hide_services_via_set_service
3description: |
4  Detects usage of the "Set-Service" powershell cmdlet to configure a new SecurityDescriptor that allows a service to be hidden from other utilities such as "sc.exe", "Get-Service"...etc. (Works only in powershell 7)
5filter: |
6  (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && ((evt.Parsed.Image endsWith '\\pwsh.exe' || evt.Parsed.OriginalFileName == 'pwsh.dll') && evt.Parsed.CommandLine contains 'Set-Service ' && evt.Parsed.CommandLine contains 'DCLCWPDTSD' && (evt.Parsed.CommandLine contains '-SecurityDescriptorSddl ' || evt.Parsed.CommandLine contains '-sd '))
7blackhole: 2m
8#status: test
9labels:
10  service: windows
11  confidence: 1
12  spoofable: 0
13  classification:
14   - attack.t1574.011
15
16  label: "Abuse of Service Permissions to Hide Services Via Set-Service"
17  behavior : "windows:audit"
18  remediation: false
19
20scope:
21  type: ParentProcessId
22  expression: evt.Parsed.ParentProcessId
23
24