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Elastic Docs ›Elastic Security Solution [8.4] ›Detections and alerts ›Prebuilt rule reference

Virtual Machine Fingerprinting

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Virtual Machine Fingerprinting

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An adversary may attempt to get detailed information about the operating system and hardware. This rule identifies common locations used to discover virtual machine hardware by a non-root user. This technique has been used by the Pupy RAT and other malware.

Rule type: query

Rule indices:

  • auditbeat-*
  • 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

Tags:

  • Elastic
  • Host
  • Linux
  • Threat Detection
  • Discovery

Version: 7 (version history)

Added (Elastic Stack release): 7.8.0

Last modified (Elastic Stack release): 8.4.0

Rule authors: Elastic

Rule license: Elastic License v2

Potential false positives

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Certain tools or automated software may enumerate hardware information. These tools can be exempted via user name or process arguments to eliminate potential noise.

Rule query

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event.category:process and event.type:(start or process_started) and
process.args:("/sys/class/dmi/id/bios_version" or
"/sys/class/dmi/id/product_name" or
"/sys/class/dmi/id/chassis_vendor" or
"/proc/scsi/scsi" or "/proc/ide/hd0/model") and not
user.name:root

Threat mapping

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Framework: MITRE ATT&CKTM

Rule version history

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Version 7 (8.4.0 release)
  • Formatting only
Version 6 (7.12.0 release)
  • Formatting only
Version 5 (7.11.2 release)
  • Formatting only
Version 4 (7.10.0 release)
  • Formatting only
Version 3 (7.9.1 release)
  • Formatting only
Version 2 (7.9.0 release)

  • Updated query, changed from:

    event.action:executed and
process.args:("/sys/class/dmi/id/bios_version" or
"/sys/class/dmi/id/product_name" or "/sys/class/dmi/id/chassis_vendor"
or "/proc/scsi/scsi" or "/proc/ide/hd0/model") and not user.name:root
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