Detection rules › Kusto Query Language
Potential Fodhelper UAC Bypass
'This detection looks for the steps required to conduct a UAC bypass using Fodhelper.exe. By default this detection looks for the setting of the required registry keys and the invoking of the process within 1 hour - this can be tweaked as required.'
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Privilege Escalation | T1548.002 Abuse Elevation Control Mechanism: Bypass User Account Control |
| Defense Evasion | T1548.002 Abuse Elevation Control Mechanism: Bypass User Account Control |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Security-Auditing | 4657 | A registry value was modified. |
| Security-Auditing | 4688 | A new process has been created. |
Stages and Predicates
Stage 1: source
SecurityEvent
Stage 2: where
EventID eq "4657"
Stage 3: parse
Stage 4: project-reorder
Stage 5: where
RegistryKey match "Software\\\\Classes\\\\ms-settings\\\\shell\\\\open\\\\command"
Stage 6: extend
Stage 7: join
Stage 8: extend
Stage 9: extend
Stage 10: extend
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 |
|---|---|---|
EventID | eq |
|
RegistryKey | match |
|