Possible C2 Beacon with Fixed Authorization URI Parameter via proxy

PremiumReviewedSigma · Medium · v1
Category
proxy
Author
HuntRule
Published
2026-08-26
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 outbound web requests to index.php carrying the fixed authorization=1 query parameter used by the DGA based command-and-control of the pirated-media miner campaign. The constant URI structure across randomized domains is a reliable protocol fingerprint. Catching the beacon URI reveals active C2 traffic that domain blocklists miss.

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Possible C2 Beacon with Fixed Authorization URI Parameter via proxy
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.