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Elastic Docs ›Elastic Security Solution [8.9] ›Downloadable rule update v8.9.5

Suspicious Managed Code Hosting Process

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Suspicious Managed Code Hosting Process

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Identifies a suspicious managed code hosting process which could indicate code injection or other form of suspicious code execution.

Rule type: eql

Rule indices:

  • winlogbeat-*
  • logs-endpoint.events.*
  • logs-windows.*

Severity: high

Risk score: 73

Runs every: 5m

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

Maximum alerts per execution: 100

References:

Tags:

  • Domain: Endpoint
  • OS: Windows
  • Use Case: Threat Detection
  • Tactic: Defense Evasion
  • Data Source: Elastic Defend

Version: 104

Rule authors:

  • Elastic

Rule license: Elastic License v2

Rule query

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sequence by process.entity_id with maxspan=5m
 [process where host.os.type == "windows" and event.type == "start" and
  process.name : ("wscript.exe", "cscript.exe", "mshta.exe", "wmic.exe", "regsvr32.exe", "svchost.exe", "dllhost.exe", "cmstp.exe")]
 [file where host.os.type == "windows" and event.type != "deletion" and
  file.name : ("wscript.exe.log",
               "cscript.exe",
               "mshta.exe.log",
               "wmic.exe.log",
               "svchost.exe.log",
               "dllhost.exe.log",
               "cmstp.exe.log",
               "regsvr32.exe.log")]

Framework: MITRE ATT&CKTM

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