Detection rules › Sigma
UAC Bypass Via Wsreset
Unfixed method for UAC bypass from Windows 10. WSReset.exe file associated with the Windows Store. It will run a binary file contained in a low-privilege registry.
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 12 | RegistryEvent (Object create and delete) |
| Sysmon | Event ID 13 | RegistryEvent (Value Set) |
| Sysmon | Event ID 14 | RegistryEvent (Key and Value Rename) |
Rule body yaml
title: UAC Bypass Via Wsreset
id: 6ea3bf32-9680-422d-9f50-e90716b12a66
status: test
description: Unfixed method for UAC bypass from Windows 10. WSReset.exe file associated with the Windows Store. It will run a binary file contained in a low-privilege registry.
references:
- https://www.bleepingcomputer.com/news/security/trickbot-uses-a-new-windows-10-uac-bypass-to-launch-quietly
- https://lolbas-project.github.io/lolbas/Binaries/Wsreset
author: oscd.community, Dmitry Uchakin
date: 2020-10-07
modified: 2021-11-27
tags:
- attack.privilege-escalation
- attack.t1548.002
logsource:
category: registry_event
product: windows
detection:
selection:
TargetObject|endswith: '\AppX82a6gwre4fdg3bt635tn5ctqjf8msdd2\Shell\open\command'
condition: selection
falsepositives:
- Unknown
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
TargetObject|endswith: '\AppX82a6gwre4fdg3bt635tn5ctqjf8msdd2\Shell\open\command'
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 |
|---|---|---|
TargetObject | ends_with |
|