WMI ActiveScriptEventConsumers Activity Via Scrcons.EXE DLL Load

Severity: medium
Author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
Source: upstream

Detects signs of the WMI script host process "scrcons.exe" loading scripting DLLs which could indicates WMI ActiveScriptEventConsumers EventConsumers activity.

MITRE ATT&CK coverage

Tactic	Techniques
Persistence	`T1546.003` Event Triggered Execution: Windows Management Instrumentation Event Subscription
Privilege Escalation	`T1546.003` Event Triggered Execution: Windows Management Instrumentation Event Subscription

Event coverage

Provider	Event ID	Title
Sysmon	7	Image loaded

Stages and Predicates

Stage 1: `selection`

or:
ImageLoaded|endswith: '\scrrun.dll'
ImageLoaded|endswith: '\vbscript.dll'
ImageLoaded|endswith: '\wbemdisp.dll'
ImageLoaded|endswith: '\wshom.ocx'
Image|endswith: '\scrcons.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.