41 lines
1.2 KiB
YAML
41 lines
1.2 KiB
YAML
title: Compress Data and Lock With Password for Exfiltration With 7-ZIP
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author: frack113
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date: 2021/07/27
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description: An adversary may compress or encrypt data that is collected prior to
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exfiltration using 3rd party utilities
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detection:
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SELECTION_1:
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EventID: 1
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SELECTION_2:
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CommandLine: '*7z.exe*'
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SELECTION_3:
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CommandLine: '*7za.exe*'
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SELECTION_4:
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CommandLine: '* -p*'
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SELECTION_5:
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CommandLine: '* a *'
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SELECTION_6:
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CommandLine: '* u *'
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condition: (SELECTION_1 and (SELECTION_2 or SELECTION_3) and SELECTION_4 and (SELECTION_5
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or SELECTION_6))
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falsepositives:
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- Command line parameter combinations that contain all included strings
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fields:
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- CommandLine
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- ParentCommandLine
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- CurrentDirectory
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id: 9fbf5927-5261-4284-a71d-f681029ea574
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level: medium
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logsource:
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category: process_creation
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product: windows
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references:
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- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1560.001/T1560.001.md
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status: experimental
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tags:
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- attack.collection
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- attack.t1560.001
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yml_filename: process_creation_susp_7z.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation
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