Suspicious 7Zip Compressing Dump Files (via process_creation)

title: Suspicious 7Zip Compressing Dump Files (via process_creation)
id: bb9af9e7-4e00-5d9b-99cc-a3c35d120963
status: stable
description: This rule detects execution of 7z to compress a file with a ".dmp"/".dump" extension, which could be a step in a process of dump file exfiltration.
references:
    - https://attack.mitre.org/techniques/T1560/001/
    - https://thedfirreport.com/2022/09/26/bumblebee-round-two/
author: Huntrule Team
date: 2026-05-21
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_extension:
        CommandLine|contains:
            - '.dmp'
            - '.dump'
            - '.hdmp'
    condition: all of selection_*
falsepositives:
    - Unknown
level: medium