Detection rules › Sigma
Potential appverifUI.DLL Sideloading
Detects potential DLL sideloading of "appverifUI.dll"
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence | T1574.001 Hijack Execution Flow: DLL |
| Privilege Escalation | T1574.001 Hijack Execution Flow: DLL |
| Defense Evasion | T1574.001 Hijack Execution Flow: DLL |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 7 | Image loaded |
Stages and Predicates
Stage 1: selection
ImageLoaded|endswith: '\appverifUI.dll'
Stage 2: not 1 of filter_main_legit_path
Image: ['C:\Windows\SysWOW64\appverif.exe', 'C:\Windows\System32\appverif.exe']
or:
ImageLoaded|startswith: 'C:\Windows\SysWOW64\'
ImageLoaded|startswith: 'C:\Windows\System32\'
ImageLoaded|startswith: 'C:\Windows\WinSxS\'
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 |
|---|---|---|
Image | eq |
|
ImageLoaded | ends_with |
|
ImageLoaded | starts_with |
|