Malicious Fenix Botnet C2 Communication via QuantumService Domain (via dns_query)

PremiumReviewedSigma · High · v1
Product
windows
Category
dns_query
Author
HuntRule
Published
2026-09-20
Updated
2026-09-20

ATT&CK techniques

C2
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. Exfiltration

  13. Impact

What it detects

This rule detects DNS resolution of the quantumservice.lat command-and-control infrastructure used by the Fenix botnet in LATAM campaigns impersonating the Mexican Government. The NarniaRAT and Rust-based BotnetFenix payloads beacon to app.quantumservice.lat to register infected hosts. Detecting this lookup surfaces post-exploitation C2 activity aimed at LATAM banking credential theft.

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Suspicious Malformed DONNECT HTTP Method in Proxy Logs via Proxy
Suspicious Network Connection from fsutil or Defender Client via network_connection
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Malicious Fenix Botnet C2 Communication via QuantumService Domain (via dns_query)
Pivot detection · T1071.001 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.