Detection rules › Sigma
UAC Bypass Using Windows Media Player - File
Detects the pattern of UAC Bypass using Windows Media Player osksupport.dll (UACMe 32)
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 |
|---|---|---|
| Sysmon | 11 | FileCreate |
Stages and Predicates
Stage 1: 1 of selection1
TargetFilename|endswith: '\AppData\Local\Temp\OskSupport.dll'
TargetFilename|startswith: 'C:\Users\'
Stage 2: 1 of selection2
Image: 'C:\Windows\system32\DllHost.exe'
TargetFilename: 'C:\Program Files\Windows Media Player\osk.exe'
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 |
|
TargetFilename | ends_with |
|
TargetFilename | eq |
|
TargetFilename | starts_with |
|