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UAC Bypass via DiskCleanup Scheduled Task Hijackedit
Identifies User Account Control (UAC) bypass via hijacking DiskCleanup Scheduled Task. Attackers bypass UAC to stealthily execute code with elevated permissions.
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
- Privilege Escalation
Version: 6
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule queryedit
process where event.type == "start" and process.args : "/autoclean" and process.args : "/d" and not process.executable : ("C:\\Windows\\System32\\cleanmgr.exe", "C:\\Windows\\SysWOW64\\cleanmgr.exe", "C:\\Windows\\System32\\taskhostw.exe")
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Privilege Escalation
- ID: TA0004
- Reference URL: https://attack.mitre.org/tactics/TA0004/
-
Technique:
- Name: Abuse Elevation Control Mechanism
- ID: T1548
- Reference URL: https://attack.mitre.org/techniques/T1548/
-
Sub-technique:
- Name: Bypass User Account Control
- ID: T1548.002
- Reference URL: https://attack.mitre.org/techniques/T1548/002/