blue-team-tools/rules/linux/auditd/lnx_data_compressed.yml

title: Data Compressed
id: a3b5e3e9-1b49-4119-8b8e-0344a01f21ee
status: test
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.
author: Timur Zinniatullin, oscd.community
references:
  - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1560.001/T1560.001.md
date: 2019/10/21
modified: 2021/11/27
logsource:
  product: linux
  service: auditd
detection:
  selection1:
    type: 'execve'
    a0: 'zip'
  selection2:
    type: 'execve'
    a0: 'gzip'
    a1: '-f'
  selection3:
    type: 'execve'
    a0: 'tar'
    a1|contains: '-c'
  condition: 1 of selection*
falsepositives:
  - Legitimate use of archiving tools by legitimate user.
level: low
tags:
  - attack.exfiltration
  - attack.t1560.001