Detection rules › Splunk
Windows Impair Defense Disable Win Defender Network Protection
The following analytic detects modifications to the Windows registry that disable Windows Defender Network Protection. It leverages data from the Endpoint.Registry data model, specifically monitoring changes to the EnableNetworkProtection registry entry. This activity is significant because disabling Network Protection can leave the system vulnerable to network-based threats by preventing Windows Defender from analyzing and blocking malicious network activity. If confirmed malicious, this action could allow attackers to bypass security measures, potentially leading to unauthorized access, data exfiltration, or further compromise of the network.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Defense Evasion | T1562.001 Impair Defenses: Disable or Modify Tools |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 13 | RegistryEvent (Value Set) |
Stages and Predicates
Stage 1: tstats
tstats WHERE Registry.registry_path="*\\Windows Defender\\Windows Defender Exploit Guard\\Network Protection\\EnableNetworkProtection" Registry.registry_value_data="0x00000000" BY Registry.action, Registry.dest, Registry.process_guid, Registry.process_id, Registry.registry_hive, Registry.registry_path, Registry.registry_key_name, Registry.registry_value_data, Registry.registry_value_name, Registry.registry_value_type, Registry.status, Registry.user, Registry.vendor_product
Stage 2: search
search
Stage 3: search
search
Stage 4: search
search
Stage 5: search
search `macro`
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 |
|---|---|---|
Registry.registry_path | eq |
|
Registry.registry_value_data | eq |
|