Detection rules › Sigma
UAC Bypass Using IEInstal - File
Detects the pattern of UAC Bypass using IEInstal.exe (UACMe 64)
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Privilege Escalation | T1548.002 Abuse Elevation Control Mechanism: Bypass User Account Control |
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 11 | FileCreate |
Rule body yaml
title: UAC Bypass Using IEInstal - File
id: bdd8157d-8e85-4397-bb82-f06cc9c71dbb
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: 2022-10-09
tags:
- attack.privilege-escalation
- attack.t1548.002
logsource:
category: file_event
product: windows
detection:
selection:
Image: 'C:\Program Files\Internet Explorer\IEInstal.exe'
TargetFilename|startswith: 'C:\Users\'
TargetFilename|contains: '\AppData\Local\Temp\'
TargetFilename|endswith: 'consent.exe'
condition: selection
falsepositives:
- Unknown
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Image: 'C:\Program Files\Internet Explorer\IEInstal.exe'
TargetFilename|startswith: 'C:\Users\'
TargetFilename|contains: '\AppData\Local\Temp\'
TargetFilename|endswith: 'consent.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 | match |
|
TargetFilename | starts_with |
|