Suspicious Extrac32 Alternate Data Stream Execution

Description

Extract data from cab file and hide it in an alternate data stream

Query · sigma

selection:
  CommandLine|contains|all:
  - extrac32.exe
  - .cab
  CommandLine|re: :[^\\]
condition: selection

Known false positives

  • Unknown
Raw source Suspicious Extrac32 Alternate Data Stream Execution · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Suspicious Extrac32 Alternate Data Stream Execution
id: 4b13db67-0c45-40f1-aba8-66a1a7198a1e
status: test
description: Extract data from cab file and hide it in an alternate data stream
references:
    - https://lolbas-project.github.io/lolbas/Binaries/Extrac32/
author: frack113
date: 2021-11-26
modified: 2022-12-30
tags:
    - attack.stealth
    - attack.t1564.004
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains|all:
            - extrac32.exe
            - .cab
        CommandLine|re: ':[^\\]'
    condition: selection
falsepositives:
    - Unknown
level: medium

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