32 lines
945 B
YAML
32 lines
945 B
YAML
|
|
title: Data Compressed - PowerShell
|
|
author: Timur Zinniatullin, oscd.community
|
|
date: 2019/10/21
|
|
description: An adversary may compress data (e.g., sensitive documents) that is collected
|
|
prior to exfiltration in order to make it portable and minimize the amount of data
|
|
sent over the network.
|
|
detection:
|
|
SELECTION_1:
|
|
ScriptBlockText: '*-Recurse*'
|
|
SELECTION_2:
|
|
ScriptBlockText: '*|*'
|
|
SELECTION_3:
|
|
ScriptBlockText: '*Compress-Archive*'
|
|
condition: (SELECTION_1 and SELECTION_2 and SELECTION_3)
|
|
falsepositives:
|
|
- Highly likely if archive operations are done via PowerShell.
|
|
id: 6dc5d284-69ea-42cf-9311-fb1c3932a69a
|
|
level: low
|
|
logsource:
|
|
category: ps_script
|
|
definition: Script block logging must be enabled
|
|
product: windows
|
|
modified: 2021/10/16
|
|
references:
|
|
- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1560/T1560.md
|
|
status: experimental
|
|
tags:
|
|
- attack.exfiltration
|
|
- attack.t1560
|
|
- attack.t1002
|