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Elastic Docs ›Elastic Security Solution [8.16] ›Detections and alerts ›Prebuilt rule reference

Renamed AutoIt Scripts Interpreter

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Renamed AutoIt Scripts Interpreter

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Identifies a suspicious AutoIt process execution. Malware written as an AutoIt script tends to rename the AutoIt executable to avoid detection.

Rule type: eql

Rule indices:

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

Severity: medium

Risk score: 47

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
  • Windows
  • Threat Detection
  • Defense Evasion
  • Elastic Endgame

Version: 102 (version history)

Added (Elastic Stack release): 7.10.0

Last modified (Elastic Stack release): 8.6.0

Rule authors: Elastic

Rule license: Elastic License v2

Investigation guide

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Rule query
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process where event.type == "start" and
process.pe.original_file_name : "AutoIt*.exe" and not process.name :
"AutoIt*.exe"











Threat mapping
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Framework: MITRE ATT&CKTM














Rule version history
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Version 102 (8.6.0 release)








    

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Formatting only

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Version 101 (8.5.0 release)








    

  • 

    Updated query, changed from:
    

    

    

    process where event.type in ("start", "process_started", "info") and
process.pe.original_file_name : "AutoIt*.exe" and not process.name :
"AutoIt*.exe"
    

    

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Version 8 (8.4.0 release)








    

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Formatting only

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Version 6 (8.2.0 release)








    

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Formatting only

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Version 5 (7.16.0 release)








    

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Version 4 (7.12.0 release)








    

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Version 3 (7.11.2 release)








    

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Formatting only

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Version 2 (7.11.0 release)








    

  • 

    Updated query, changed from:
    

    

    

    event.category:process AND event.type:(start OR process_started) AND (
process.pe.original_file_name:/[aA][uU][tT][oO][iI][tT]\d\.[eE][xX][eE
]/ OR winlog.event_data.OriginalFileName:/[aA][uU][tT][oO][iI][tT]\d\.
[eE][xX][eE]/) AND NOT
process.name:/[aA][uU][tT][oO][iI][tT]\d{1,3}\.[eE][xX][eE]/
    

    

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