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Potential Process Herpaderping Attempt

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Potential Process Herpaderping Attempt

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Identifies process execution followed by a file overwrite of an executable by the same parent process. This may indicate an evasion attempt to execute malicious code in a stealthy way.

Rule type: eql

Rule indices:

logs-endpoint.events.*
winlogbeat-*
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:

https://github.com/jxy-s/herpaderping

Tags:

Domain: Endpoint
OS: Windows
Use Case: Threat Detection
Tactic: Defense Evasion

Version: 104

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

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sequence with maxspan=5s
   [process where host.os.type == "windows" and event.type == "start" and not process.parent.executable :
      (
         "?:\\Windows\\SoftwareDistribution\\*.exe",
         "?:\\Program Files\\Elastic\\Agent\\data\\*.exe",
         "?:\\Program Files (x86)\\Trend Micro\\*.exe"
      )
   ] by host.id, process.executable, process.parent.entity_id
   [file where host.os.type == "windows" and event.type == "change" and event.action == "overwrite" and file.extension == "exe"] by host.id, file.path, process.entity_id

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
Technique:
- Name: Masquerading
- ID: T1036
- Reference URL: https://attack.mitre.org/techniques/T1036/

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