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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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: query

Rule indices:

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

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:

https://web.archive.org/web/20230329154538/https://blog.menasec.net/2019/07/interesting-difr-traces-of-net-clr.html

Tags:

Elastic
Host
Windows
Threat Detection
Defense Evasion

Version: 3 (version history)

Added (Elastic Stack release): 7.10.0

Last modified (Elastic Stack release): 7.12.0

Rule authors: Elastic

Rule license: Elastic License v2

Rule query

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event.category:file and not event.type:deletion and
file.name:(wscript.exe.log or mshta.exe.log or wscript.exe.log or
wmic.exe.log or svchost.exe.log or dllhost.exe.log or cmstp.exe.log or
regsvr32.exe.log)

Threat mapping

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Framework: MITRE ATT&CK^TM

Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
Technique:
- Name: Process Injection
- ID: T1055
- Reference URL: https://attack.mitre.org/techniques/T1055/

Rule version history

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Version 3 (7.12.0 release)

Formatting only

Version 2 (7.11.2 release)

Formatting only

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