Code Executed Via Office Add-in XLL File
Adversaries may abuse Microsoft Office add-ins to obtain persistence on a compromised system. Office add-ins can be used to add functionality to Office programs
Detection logic
selection
ScriptBlockText|contains|all:
- "new-object "
- "-ComObject "
- .application
- .RegisterXLLCondition
selectionRaw YAML
title: Code Executed Via Office Add-in XLL File
id: 36fbec91-fa1b-4d5d-8df1-8d8edcb632ad
status: test
description: |
Adversaries may abuse Microsoft Office add-ins to obtain persistence on a compromised system.
Office add-ins can be used to add functionality to Office programs
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1137.006/T1137.006.md
author: frack113
date: 2021-12-28
tags:
- attack.persistence
- attack.t1137.006
logsource:
product: windows
category: ps_script
definition: 'Requirements: Script Block Logging must be enabled'
detection:
selection:
ScriptBlockText|contains|all:
- 'new-object '
- '-ComObject '
- '.application'
- '.RegisterXLL'
condition: selection
falsepositives:
- Unknown
level: highFalse positives
- Unknown