Detection rules › Sigma
Change User Account Associated with the FAX Service
Detect change of the user account associated with the FAX service to avoid the escalation problem.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence | T1112 Modify Registry |
| Defense Evasion | T1112 Modify Registry |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 13 | RegistryEvent (Value Set) |
Stages and Predicates
Stage 1: selection
TargetObject: 'HKLM\System\CurrentControlSet\Services\Fax\ObjectName'
Stage 2: not filter
Details|contains: NetworkService
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 |
|---|---|---|
Details | match |
|
TargetObject | eq |
|