Possible DNS Queries to Public Ethereum RPC Endpoints for EtherHiding Payload Retrieval (via dns_query)
- Product
- windows
- Category
- dns_query
- Author
- HuntRule
- Published
- 2026-09-01
- Updated
- 2026-09-01
ATT&CK techniques
C2Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
Exfiltration
Impact
What it detects
This rule detects DNS resolution of public Ethereum RPC provider domains queried by EtherRAT to read its command and control configuration from a smart contract using the EtherHiding technique. Adversaries leverage blockchain RPC endpoints as a resilient dead drop that resists takedown while blending with legitimate crypto traffic, making this a heuristic signal worth reviewing on hosts with no expected blockchain activity.
Reporting behind it
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.
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