Detection rules › Sigma
DHCP Callout DLL Installation
Detects the installation of a Callout DLL via CalloutDlls and CalloutEnabled parameter in Registry, which can be used to execute code in context of the DHCP server (restart required)
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence | T1112 Modify Registry, T1574.001 Hijack Execution Flow: DLL |
| Privilege Escalation | T1574.001 Hijack Execution Flow: DLL |
| Defense Evasion | T1112 Modify Registry, T1574.001 Hijack Execution Flow: DLL |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 13 | RegistryEvent (Value Set) |
Stages and Predicates
Stage 1: selection
or:
TargetObject|endswith: '\Services\DHCPServer\Parameters\CalloutDlls'
TargetObject|endswith: '\Services\DHCPServer\Parameters\CalloutEnabled'
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 |
|---|---|---|
TargetObject | ends_with |
|