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Potential Modification of Accessibility Binaries
editPotential Modification of Accessibility Binaries
editWindows contains accessibility features that may be launched with a key combination before a user has logged in. An adversary can modify the way these programs are launched to get a command prompt or backdoor without logging in to the system.
Rule type: query
Rule indices:
- winlogbeat-*
Severity: low
Risk score: 21
Runs every: 5 minutes
Searches indices from: now-6m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
Tags:
- Elastic
- Windows
Version: 3 (version history)
Added (Elastic Stack release): 7.6.0
Last modified (Elastic Stack release): 7.9.0
Rule authors: Elastic
Rule license: Elastic License
Rule query
editevent.code:1 and process.parent.name:winlogon.exe and process.name:(atbroker.exe or displayswitch.exe or magnify.exe or narrator.exe or osk.exe or sethc.exe or utilman.exe)
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
-
Technique:
- Name: Accessibility Features
- ID: T1015
- Reference URL: https://attack.mitre.org/techniques/T1015/
-
Tactic:
- Name: Privilege Escalation
- ID: TA0004
- Reference URL: https://attack.mitre.org/tactics/TA0004/
-
Technique:
- Name: Accessibility Features
- ID: T1015
- Reference URL: https://attack.mitre.org/techniques/T1015/
Rule version history
edit- Version 3 (7.9.0 release)
-
- Formatting only
- Version 2 (7.7.0 release)
-
-
Updated query, changed from:
event.code:1 and process.parent.name:winlogon.exe and (process.name:atbroker.exe or process.name:displayswitch.exe or process.name:magnify.exe or process.name:narrator.exe or process.name:osk.exe or process.name:sethc.exe or process.name:utilman.exe)
-