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Suspicious Endpoint Security Parent Process

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Suspicious Endpoint Security Parent Process

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A suspicious Endpoint Security parent process was detected. This may indicate a process hollowing or other form of code injection.

Rule type: eql

Rule indices:

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

Severity: medium

Risk score: 47

Runs every: 5m

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

Maximum alerts per execution: 100

References: None

Tags:

Elastic
Host
Windows
Threat Detection
Defense Evasion

Version: 7

Rule authors:

Elastic

Rule license: Elastic License v2

Investigation guide

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Rule query

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process where event.type in ("start", "process_started", "info") and
 process.name : ("esensor.exe", "elastic-endpoint.exe") and
 process.parent.executable != null and
  /* add FPs here */
 not process.parent.executable : ("C:\\Program Files\\Elastic\\*",
                                  "C:\\Windows\\System32\\services.exe",
                                  "C:\\Windows\\System32\\WerFault*.exe",
                                  "C:\\Windows\\System32\\wermgr.exe")

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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