Regedit as Trusted Installer

Severity: high
Author: Florian Roth (Nextron Systems)
Source: upstream

Detects a regedit started with TrustedInstaller privileges or by ProcessHacker.exe

MITRE ATT&CK coverage

Tactic	Techniques
Privilege Escalation	`T1548` Abuse Elevation Control Mechanism
Defense Evasion	`T1548` Abuse Elevation Control Mechanism

Event coverage

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

Stages and Predicates

Stage 1: `selection`

or:
ParentImage|endswith: '\ProcessHacker.exe'
ParentImage|endswith: '\TrustedInstaller.exe'
Image|endswith: '\regedit.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.