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40 lines
1.2 KiB
YAML
40 lines
1.2 KiB
YAML
title: Data Compressed
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status: experimental
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description: An adversary may compress data (e.g., sensitive documents) that is collected prior to exfiltration in order to make it portable and minimize the amount of data sent over the network
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author: Timur Zinniatullin, oscd.community
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references:
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- https://attack.mitre.org/techniques/T1002/
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- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1002/T1002.yaml
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logsource:
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category: process_creation
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product: windows
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detection:
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selection1:
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Image:
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- '*\rar.exe'
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CommandLine:
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- '* a -r *'
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selection2:
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Image:
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- '*\powershell.exe'
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CommandLine:
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- '*-Recurse | Compress-Archive*'
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- '*-Recurse| Compress-Archive*'
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- '*-Recurse |Compress-Archive*'
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- '*-Recurse|Compress-Archive*'
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condition: selection1 or selection2
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fields:
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- Image
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- CommandLine
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- User
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- LogonGuid
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- Hashes
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- ParentProcessGuid
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- ParentCommandLine
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falsepositives:
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- highly likely if default archivator in the monitored environment is rar, and even if not
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level: low
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tags:
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- attack.exfiltration
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- attack.t1002
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