Possible MuddyWater C2 Domain Resolution

PremiumReviewedSigma · High · v1
Product
windows
Category
dns_query
Author
HuntRule
Published
2026-06-08
Updated
2026-08-28

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 domain screenai.online, a command-and-control host observed in a MuddyWater APT campaign that combined WMI execution and remote management tool abuse against Middle East targets. It captures beaconing infrastructure lookups tied to the intrusion. Detecting this is important because resolution of this campaign-specific domain is a high-confidence indicator of an infected host reaching out to attacker infrastructure.

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Possible MuddyWater C2 Domain Resolution
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.