Suspicious Compress Data and Lock With Password for Exfiltration With 7-ZIP (via process_creation)

title: Suspicious Compress Data and Lock With Password for Exfiltration With 7-ZIP (via process_creation)
id: 710a58b0-8011-5ed6-8213-ba3eb90ce6bc
status: stable
description: This rule detects an adversary may compress or encrypt data that is collected prior to exfiltration using 3rd party utilities
references:
    - https://attack.mitre.org/techniques/T1560/001/
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1560.001/T1560.001.md
author: Huntrule Team
date: 2026-02-13
tags:
    - attack.collection
    - attack.t1560.001
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Description|contains: '7-Zip'
        - Image|endswith:
              - '\7z.exe'
              - '\7zr.exe'
              - '\7za.exe'
        - OriginalFileName:
              - '7z.exe'
              - '7za.exe'
              - '7zr.exe'
    selection_password:
        CommandLine|contains: ' -p'
    selection_action:
        CommandLine|contains:
            - ' a '
            - ' u '
    condition: all of selection_*
falsepositives:
    - Unknown
level: medium