Suspicious Remote Management C2 Subdomain Resolution

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

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 upload[1-4].am.remote.management style hostnames used as command-and-control and data-upload endpoints in this Brazilian RMM-abuse spam campaign. The structured am.remote.management pattern with a numbered upload prefix is the operator infrastructure receiving exfiltrated data through abused remote monitoring tooling.

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SplashTop Network
Suspicious Remote Management C2 Subdomain Resolution
Pivot detection · T1219 · 9 related

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