Sigma Rule Library

Compress Data and Lock With Password for Exfiltration With WINZIP

An adversary may compress or encrypt data that is collected prior to exfiltration using 3rd party utilities

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Detection logic

selection_winzip

CommandLine|contains:
  - winzip.exe
  - winzip64.exe

selection_password

CommandLine|contains: -s"

selection_other

CommandLine|contains:
  - " -min "
  - " -a "

Condition

all of selection*

Raw YAML

title: Compress Data and Lock With Password for Exfiltration With WINZIP
id: e2e80da2-8c66-4e00-ae3c-2eebd29f6b6d
status: test
description: An adversary may compress or encrypt data that is collected prior to exfiltration using 3rd party utilities
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1560.001/T1560.001.md
author: frack113
date: 2021-07-27
modified: 2022-12-25
tags:
    - attack.collection
    - attack.t1560.001
logsource:
    category: process_creation
    product: windows
detection:
    selection_winzip:
        CommandLine|contains:
            - 'winzip.exe'
            - 'winzip64.exe'
    selection_password:
        CommandLine|contains: '-s"'
    selection_other:
        CommandLine|contains:
            - ' -min '
            - ' -a '
    condition: all of selection*
falsepositives:
    - Unknown
level: medium

False positives

  • Unknown

References

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