A newer version is available. For the latest information, see the
current release documentation.
DNS-over-HTTPS Enabled via Registryedit
Identifies when a user enables DNS-over-HTTPS. This can be used to hide internet activity or be used to hide the process of exfiltrating data. With this enabled organization will lose visibility into data such as query type, response and originating IP that are used to determine bad actors.
Rule type: eql
Rule indices:
- winlogbeat-*
- logs-endpoint.events.*
- logs-windows.*
Severity: low
Risk score: 21
Runs every: 5 minutes
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Defense Evasion
Version: 1
Added (Elastic Stack release): 7.16.0
Rule authors: Austin Songer
Rule license: Elastic License v2
Rule queryedit
registry where event.type in ("creation", "change") and
(registry.path :
"*\\SOFTWARE\\Policies\\Microsoft\\Edge\\BuiltInDnsClientEnabled" and
registry.data.strings : "1") or (registry.path :
"*\\SOFTWARE\\Google\\Chrome\\DnsOverHttpsMode" and
registry.data.strings : "secure") or (registry.path :
"*\\SOFTWARE\\Policies\\Mozilla\\Firefox\\DNSOverHTTPS" and
registry.data.strings : "1")
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Impair Defenses
- ID: T1562
- Reference URL: https://attack.mitre.org/techniques/T1562/