Scrcons.exe Rare Child Process

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	XDR Agent
ATT&CK Tactic	Execution (TA0002), Persistence (TA0003)
ATT&CK Technique	Windows Management Instrumentation (T1047), Event Triggered Execution: Windows Management Instrumentation Event Subscription (T1546.003)
Severity	Informational

Description

The Windows Management Instrumentation (WMI) standard event consumer scrcons.exe executed a rare VBScript or PowerShell script. Executing a rare script can be an indication of local or remote code execution abuse by an attacker.

Attacker's Goals

The attacker is trying to gain Persistence via WMI script registration.

Investigative actions

• Search for any executions of the Managed Object Format (MOF) compiler mofcomp.exe and review the process that ran it.
• Review registered WMI ActiveScriptEventConsumer by running "WMIC /namespace:\root\default path ActiveScriptEventConsumer get *".

Variations

Scrcons.exe Rare Child Process

Synopsis

Field	Value
ATT&CK Tactic	Execution (TA0002), Persistence (TA0003)
ATT&CK Technique	Windows Management Instrumentation (T1047), Event Triggered Execution: Windows Management Instrumentation Event Subscription (T1546.003)
Severity	Medium

Description

The Windows Management Instrumentation (WMI) standard event consumer scrcons.exe executed a rare VBScript or PowerShell script. Executing a rare script can be an indication of local or remote code execution abuse by an attacker.

Attacker's Goals

The attacker is trying to gain Persistence via WMI script registration.

Investigative actions

• Search for any executions of the Managed Object Format (MOF) compiler mofcomp.exe and review the process that ran it.
• Review registered WMI ActiveScriptEventConsumer by running "WMIC /namespace:\root\default path ActiveScriptEventConsumer get *".