1type: trigger
2name: sigmahq/proc_creation_win_whoami_priv_discovery
3description: |
4  Detects a whoami.exe executed with the /priv command line flag instructing the tool to show all current user privileges. This is often used after a privilege escalation attempt.
5filter: |
6  (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && ((evt.Parsed.Image endsWith '\\whoami.exe' || evt.Parsed.OriginalFileName == 'whoami.exe') && (evt.Parsed.CommandLine contains ' /priv' || evt.Parsed.CommandLine contains ' -priv'))
7blackhole: 2m
8#status: test
9labels:
10  service: windows
11  confidence: 1
12  spoofable: 0
13  classification:
14   - attack.t1033
15
16  label: "Security Privileges Enumeration Via Whoami.EXE"
17  behavior : "windows:audit"
18  remediation: false
19
20scope:
21  type: ParentProcessId
22  expression: evt.Parsed.ParentProcessId
23
24