2021-07-11 09:29:43 +02:00
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title: Windows Spooler Service Suspicious Binary Load
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2021-07-01 12:12:09 +05:45
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id: 02fb90de-c321-4e63-a6b9-25f4b03dfd14
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status: experimental
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2021-07-11 09:29:43 +02:00
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description: Detect DLL Load from Spooler Service backup folder
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2021-07-01 12:12:09 +05:45
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references:
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- https://github.com/hhlxf/PrintNightmare
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2022-02-09 08:40:04 +01:00
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- https://github.com/ly4k/SpoolFool
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2021-07-11 09:29:43 +02:00
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author: FPT.EagleEye, Thomas Patzke (improvements)
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2021-07-01 12:12:09 +05:45
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date: 2021/06/29
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2022-02-09 08:40:04 +01:00
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modified: 2022/02/09
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2021-07-01 12:12:09 +05:45
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logsource:
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category: image_load
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product: windows
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detection:
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selection:
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2021-08-24 10:27:27 +02:00
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Image|endswith: 'spoolsv.exe'
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2022-02-09 08:40:04 +01:00
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ImageLoaded|contains:
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- '\Windows\System32\spool\drivers\x64\3\'
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- '\Windows\System32\spool\drivers\x64\4\'
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2021-08-24 10:27:27 +02:00
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ImageLoaded|endswith: '.dll'
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2021-07-01 12:12:09 +05:45
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condition: selection
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falsepositives:
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2021-07-11 09:29:43 +02:00
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- Loading of legitimate driver
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level: informational
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2022-02-09 08:40:04 +01:00
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tags:
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- attack.persistence
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- attack.defense_evasion
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- attack.privilege_escalation
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- attack.t1574
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- cve.2021.1675
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- cve.2021.34527
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