PowerShell used to remove mailbox export request logs

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 one of the following data sources:
    • Windows Event Collector
      OR
    • XDR Agent
  • Requires:
    • eXtended Threat Hunting (XTH)

Detection Modules

ATT&CK Tactic

Execution (TA0002)

ATT&CK Technique

Command and Scripting Interpreter: PowerShell (T1059.001)

Severity

High

Description

An attacker may use PowerShell to remove evidence of an export request for a mailbox as part of the clean-up stage.

Attacker's Goals

Remove evidence for mailbox export commands.

Investigative actions

  • Examine the PowerShell command to identify which mailbox has been compromised.
  • Investigate the host that executes the command for potential further exploitation.