Suspicious External IP Lookup to ipify Service (via dns_query)

PremiumReviewedSigma · Low · v1
Product
windows
Category
dns_query
Author
HuntRule
Published
2026-06-02
Updated
2026-08-28

ATT&CK techniques

Discovery
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects DNS resolution of the ipify external IP-lookup service, which adversaries query at the start of instant-messaging command and control to discover the victim public address. Malware pairs this lookup with sessions to Discord or Telegram APIs to fingerprint the environment before beaconing. The lookup is dual-use, so correlate with unsigned or masquerading binaries for higher confidence.

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