IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.
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Elastic Docs ›Elastic Security Solution [8.4] ›Detections and alerts ›Prebuilt rule reference

Suspicious Print Spooler Point and Print DLL

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Suspicious Print Spooler Point and Print DLL

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Detects attempts to exploit a privilege escalation vulnerability (CVE-2020-1030) related to the print spooler service. Exploitation involves chaining multiple primitives to load an arbitrary DLL into the print spooler process running as SYSTEM.

Rule type: eql

Rule indices:

  • logs-endpoint.events.*

Severity: high

Risk score: 73

Runs every: 5 minutes

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

  • Elastic
  • Host
  • Windows
  • Threat Detection
  • Privilege Escalation

Version: 4 (version history)

Added (Elastic Stack release): 7.11.0

Last modified (Elastic Stack release): 8.4.0

Rule authors: Elastic

Rule license: Elastic License v2

Rule query

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sequence by host.id with maxspan=30s [registry where registry.path :
"HKLM\\SOFTWARE\\Microsoft\\Windows
NT\\CurrentVersion\\Print\\Printers\\*\\SpoolDirectory" and
registry.data.strings :
"C:\\Windows\\System32\\spool\\drivers\\x64\\4"] [registry where
registry.path : "HKLM\\SOFTWARE\\Microsoft\\Windows
NT\\CurrentVersion\\Print\\Printers\\*\\CopyFiles\\Payload\\Module"
and registry.data.strings :
"C:\\Windows\\System32\\spool\\drivers\\x64\\4\\*"]

Threat mapping

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Framework: MITRE ATT&CKTM

Rule version history

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Version 4 (8.4.0 release)
  • Formatting only
Version 3 (8.1.0 release)
  • Formatting only
Version 2 (7.12.0 release)
  • Formatting only
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