Microsoft Office adds a value to autostart Registry key

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-06-04
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
  • Requires:
    • eXtended Threat Hunting (XTH)

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

Microsoft Office adds a value to a Registry entry (run keys, startup folders) to establish persistence.

Attacker's Goals

Gain persistence on the host using the Window's autostart Mechanism.

Investigative actions

  • Check the registry key and determine what process it'll run.
  • Check whether the executing process is benign, and if this was a desired behavior as part of its normal execution flow.