Rule Content
- title: Data Compressed
id: a3b5e3e9-1b49-4119-8b8e-0344a01f21ee
status: experimental
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
date: 2019/10/21
modified: 2019/11/04
references:
- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1002/T1002.yaml
logsource:
product: linux
service: auditd
category: null
detection:
selection1:
type: execve
a0: zip
selection2:
type: execve
a0: gzip
a1: -f
selection3:
type: execve
a0: tar
a1|contains: -c
condition: 1 of them
falsepositives:
- Legitimate use of archiving tools by legitimate user
level: low
tags:
- attack.exfiltration
- attack.t1002