IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Renamed AutoIt Scripts Interpreter
editRenamed AutoIt Scripts Interpreter
editIdentifies 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.*
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
Version: 8 (version history)
Added (Elastic Stack release): 7.10.0
Last modified (Elastic Stack release): 8.4.0
Rule authors: Elastic
Rule license: Elastic License v2
Investigation guide
editRule query
editprocess where event.type in ("start", "process_started", "info") and
process.pe.original_file_name : "AutoIt*.exe" and not process.name :
"AutoIt*.exe"
Threat mapping
editFramework: MITRE ATT&CKTM
-
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/
Rule version history
edit- Version 8 (8.4.0 release)
-
- Formatting only
- Version 6 (8.2.0 release)
-
- Formatting only
- Version 5 (7.16.0 release)
-
- Formatting only
- Version 4 (7.12.0 release)
-
- Formatting only
- Version 3 (7.11.2 release)
-
- Formatting only
- 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]/
-