SigmaHQ/rules/windows/registry_event/sysmon_uac_bypass_eventvwr.yml
2021-07-01 12:18:30 +05:45

43 lines
1.2 KiB
YAML
Executable File

action: global
title: UAC Bypass via Event Viewer
id: 7c81fec3-1c1d-43b0-996a-46753041b1b6
status: experimental
description: Detects UAC bypass method using Windows event viewer
references:
- https://enigma0x3.net/2016/08/15/fileless-uac-bypass-using-eventvwr-exe-and-registry-hijacking/
- https://www.hybrid-analysis.com/sample/e122bc8bf291f15cab182a5d2d27b8db1e7019e4e96bb5cdbd1dfe7446f3f51f?environmentId=100
author: Florian Roth
date: 2017/03/19
modified: 2020/09/06
tags:
- attack.defense_evasion
- attack.privilege_escalation
- attack.t1088 # an old one
- attack.t1548.002
- car.2019-04-001
falsepositives:
- unknown
level: critical
---
logsource:
product: windows
category: registry_event
detection:
methregistry:
TargetObject|startswith: 'HKU\'
TargetObject|endswith: '\mscfile\shell\open\command'
condition: methregistry
---
logsource:
category: process_creation
product: windows
detection:
methprocess:
ParentImage|endswith: '\eventvwr.exe'
filterprocess:
Image|endswith: '\mmc.exe'
condition: methprocess and not filterprocess
fields:
- CommandLine
- ParentCommandLine