Detection rules › Sigma
Local Accounts Discovery
Local accounts, System Owner/User discovery using operating systems utilities
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Discovery | T1033 System Owner/User Discovery, T1087.001 Account Discovery: Local Account |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 1 | Process creation |
Stages and Predicates
Stage 1: selection_cmd
CommandLine|contains: ' /c'
CommandLine|contains: '\Users\'
CommandLine|contains: 'dir '
Image|endswith: '\cmd.exe'
Stage 2: not filter_cmd
CommandLine|contains: ' rmdir '
Stage 3: selection_net
or:
Image|endswith: '\net.exe'
Image|endswith: '\net1.exe'
CommandLine|contains: user
Stage 4: not filter_net
or:
CommandLine|contains: '/active'
CommandLine|contains: '/add'
CommandLine|contains: '/delete'
CommandLine|contains: '/domain'
CommandLine|contains: '/expires'
CommandLine|contains: '/passwordreq'
CommandLine|contains: '/scriptpath'
CommandLine|contains: '/times'
CommandLine|contains: '/workstations'
Stage 5: 1 of selection_other_img
or:
Image|endswith: '\quser.exe'
Image|endswith: '\qwinsta.exe'
Image|endswith: '\whoami.exe'
OriginalFileName: quser.exe
OriginalFileName: qwinsta.exe
OriginalFileName: whoami.exe
Stage 6: 1 of selection_other_wmi
CommandLine|contains: get
CommandLine|contains: useraccount
Image|endswith: '\wmic.exe'
Stage 7: 1 of selection_other_cmdkey
CommandLine|contains: ' /l'
Image|endswith: '\cmdkey.exe'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
CommandLine | match |
|
Image | ends_with |
|
OriginalFileName | eq |
|