UAC Bypass Using Event Viewer RecentViews

Severity: high
Author: Nasreddine Bencherchali (Nextron Systems)
Source: upstream

Detects the pattern of UAC Bypass using Event Viewer RecentViews

Event coverage

Provider	Event ID	Title
Sysmon	1	Process creation
Security-Auditing	4688	A new process has been created.

Stages and Predicates

Stage 1: `all of selection_path`

or:
CommandLine|contains: '\Event Viewer\RecentViews'
CommandLine|contains: '\EventV~1\RecentViews'

Stage 2: `all of selection_redirect`

CommandLine|contains: '>'

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
`CommandLine`	match	`>` corpus 3 (sigma 3) `\Event Viewer\RecentViews` `\EventV~1\RecentViews`