1type: trigger
2name: sigmahq/proc_creation_win_svchost_termserv_proc_spawn
3description: |
4  Detects a process spawned by the terminal service server process (this could be an indicator for an exploitation of CVE-2019-0708)
5filter: |
6  (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && (evt.Parsed.ParentCommandLine contains '\\svchost.exe' && evt.Parsed.ParentCommandLine contains 'termsvcs' && not (evt.Parsed.Image endsWith '\\rdpclip.exe' || evt.Parsed.Image endsWith ':\\Windows\\System32\\csrss.exe' || evt.Parsed.Image endsWith ':\\Windows\\System32\\wininit.exe' || evt.Parsed.Image endsWith ':\\Windows\\System32\\winlogon.exe' || evt.Parsed.Image == ''))
7blackhole: 2m
8#status: test
9labels:
10  service: windows
11  confidence: 1
12  spoofable: 0
13  classification:
14   - attack.t1190
15   - attack.t1210
16
17  label: "Terminal Service Process Spawn"
18  behavior : "windows:audit"
19  remediation: false
20
21scope:
22  type: ParentProcessId
23  expression: evt.Parsed.ParentProcessId
24
25