CVE-2021-1675 Print Spooler Exploitation

Description

Detects driver load events print service operational log that are a sign of successful exploitation attempts against print spooler vulnerability CVE-2021-1675

Query · sigma

selection:
  EventID: 316
keywords:
- 'UNIDRV.DLL, kernelbase.dll, '
- ' 123 '
- ' 1234 '
- mimispool
condition: selection and keywords

Known false positives

  • Unknown
Raw source CVE-2021-1675 Print Spooler Exploitation · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: CVE-2021-1675 Print Spooler Exploitation
id: f34d942d-c8c4-4f1f-b196-22471aecf10a
status: test
description: Detects driver load events print service operational log that are a sign of successful exploitation attempts against print spooler vulnerability CVE-2021-1675
references:
    - https://twitter.com/MalwareJake/status/1410421967463731200
author: Florian Roth (Nextron Systems)
date: 2021-07-01
modified: 2022-10-09
tags:
    - attack.execution
    - attack.t1569
    - cve.2021-1675
    - detection.emerging-threats
logsource:
    product: windows
    service: printservice-operational
detection:
    selection:
        EventID: 316
    keywords:
        - 'UNIDRV.DLL, kernelbase.dll, '
        - ' 123 '
        - ' 1234 '
        - 'mimispool'
    condition: selection and keywords
falsepositives:
    - Unknown
level: critical

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