Detection rules › Sigma
UAC Bypass Using IEInstal - Process
Detects the pattern of UAC Bypass using IEInstal.exe (UACMe 64)
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Privilege Escalation |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 1: Process creation |
| Security-Auditing | Event ID 4688: A new process has been created. |
Rule body
title: UAC Bypass Using IEInstal - Process
id: 80fc36aa-945e-4181-89f2-2f907ab6775d
status: test
description: Detects the pattern of UAC Bypass using IEInstal.exe (UACMe 64)
references:
- https://github.com/hfiref0x/UACME
author: Christian Burkard (Nextron Systems)
date: 2021-08-30
modified: 2024-12-01
tags:
- attack.privilege-escalation
- attack.t1548.002
logsource:
category: process_creation
product: windows
detection:
selection:
IntegrityLevel:
- 'High'
- 'System'
- 'S-1-16-16384' # System
- 'S-1-16-12288' # High
ParentImage|endswith: '\ieinstal.exe'
Image|contains: '\AppData\Local\Temp\'
Image|endswith: 'consent.exe'
condition: selection
falsepositives:
- Unknown
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
IntegrityLevel:
- 'High'
- 'System'
- 'S-1-16-16384'
- 'S-1-16-12288'
ParentImage|endswith: '\ieinstal.exe'
Image|contains: '\AppData\Local\Temp\'
Image|endswith: 'consent.exe'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
Image | ends_with |
| field:"Image" kind:ends_with value:"consent.exe" |
Image | match |
| field:"Image" kind:match value:"\AppData\Local\Temp\" |
IntegrityLevel | eq |
| field:"IntegrityLevel" kind:eq |
ParentImage | ends_with |
| field:"ParentImage" kind:ends_with value:"\ieinstal.exe" |