Suspicious RunOnce Parent Process

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-06-18
Category
Analytics Alert Reference
Order
Alert name

Synopsis

Activation Period

14 Days

Training Period

30 Days

Test Period

N/A (single event)

Deduplication Period

1 Day

Required Data

  • Requires:
    • XDR Agent

Detection Modules

ATT&CK Tactic

Persistence (TA0003)

ATT&CK Technique

Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder (T1547.001)

Severity

Low

Description

Runonce.exe executes commands under the Registry key HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce, typically on computer boot and user login events.

Attacker's Goals

An attacker is trying to perform an action on the system at a later point, achieving persistence.

Investigative actions

Investigate the endpoint to determine if it's a legitimate process that is supposed to use RunOnce in its operation.