IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
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-*
- logs-endpoint.events.*
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
- Host
- Windows
- Threat Detection
- Persistence
Version: 4 (version history)
Added (Elastic Stack release): 7.6.0
Last modified (Elastic Stack release): 7.10.0
Rule authors: Elastic
Rule license: Elastic License
Rule query
editevent.category:process and event.type:(start or process_started) and process.parent.name:winlogon.exe and not 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 4 (7.10.0 release)
-
-
Updated query, changed from:
event.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)
-
- 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)
-