Suspicious DNS-over-HTTPS C2 via Wildcard DNS Services

ATT&CK techniques

C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1071.004DNS
Exfiltration
Impact

What it detects

This rule detects DNS resolution of sslip.io and nip.io wildcard DNS domains that encode an IP address in the hostname, matching BRICKSTORM DNS-over-HTTPS command-and-control on appliances and hypervisors. Espionage operators use these services to dynamically map beacon traffic to attacker infrastructure while blending with legitimate DNS.

Reporting behind it

Related detections9 linkedT1071.004 — drag to rearrange

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Malicious dnscat2 DNS Tunneling C2 Traffic

Suspicious DNS-over-HTTPS C2 via Wildcard DNS Services

Pivot detection · T1071.004 · 9 related

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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