Detection rules › Sigma
UAC Bypass Using IDiagnostic Profile - File
Detects the creation of a file by "dllhost.exe" in System32 directory part of "IDiagnosticProfileUAC" UAC bypass technique
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Privilege Escalation |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 11: FileCreate |
Rule body
title: UAC Bypass Using IDiagnostic Profile - File
id: 48ea844d-19b1-4642-944e-fe39c2cc1fec
status: test
description: Detects the creation of a file by "dllhost.exe" in System32 directory part of "IDiagnosticProfileUAC" UAC bypass technique
references:
- https://github.com/Wh04m1001/IDiagnosticProfileUAC
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-07-03
tags:
- attack.execution
- attack.privilege-escalation
- attack.t1548.002
logsource:
product: windows
category: file_event
detection:
selection:
Image|endswith: '\DllHost.exe'
TargetFilename|startswith: 'C:\Windows\System32\'
TargetFilename|endswith: '.dll'
condition: selection
falsepositives:
- Unknown
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Image|endswith: '\DllHost.exe'
TargetFilename|startswith: 'C:\Windows\System32\'
TargetFilename|endswith: '.dll'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
Image | ends_with |
| field:"Image" kind:ends_with value:"\DllHost.exe" |
TargetFilename | ends_with |
| field:"TargetFilename" kind:ends_with value:".dll" |
TargetFilename | starts_with |
| field:"TargetFilename" kind:starts_with value:"C:\Windows\System32\" |