SigmaHQ/rules/windows/process_creation/win_susp_compression_params.yml

title: Suspicious Compression Tool Parameters
id: 27a72a60-7e5e-47b1-9d17-909c9abafdcd
status: experimental
description: Detects suspicious command line arguments of common data compression tools
references:
    - https://twitter.com/SBousseaden/status/1184067445612535811
tags:
    - attack.collection
    - attack.t1560.001
    - attack.exfiltration # an old one
    - attack.t1020 # an old one
    - attack.t1002 # an old one
author: Florian Roth, Samir Bousseaden
date: 2019/10/15
modified: 2020/09/05
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        OriginalFileName:
            - '7z*.exe'
            - '*rar.exe'
            - '*Command*Line*RAR*'
        CommandLine|contains:
            - ' -p'
            - ' -ta'
            - ' -tb'
            - ' -sdel'
            - ' -dw'
            - ' -hp'
    falsepositive:
        ParentImage|startswith: 'C:\Program'
    condition: selection and not falsepositive
falsepositives:
    - unknown
level: high