Suspicious Remote Script Download Piped to Shell via 8220 Gang Hadooken

PremiumReviewedSigma · Low · v1
Product
linux
Category
process_creation
Author
HuntRule
Published
2026-07-31
Updated
2026-08-28

ATT&CK techniques

Execution → Priv Esc
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Persistence

  5. Defense Evasion

  6. Cred Access

  7. Discovery

  8. Lateral Movement

  9. Collection

  10. C2

  11. Exfiltration

  12. Impact

What it detects

This rule detects a curl or wget download whose output is piped directly into a shell interpreter, the download and execute pattern the 8220 gang schedules through cron every few minutes in the Hadooken campaign to pull and run its loader. Piping remote content into a shell removes any on disk staging and is a common Linux malware behavior. It is rarely required by legitimate automation.

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Suspicious Remote Script Download Piped to Shell via 8220 Gang Hadooken
Pivot detection · T1059.004 · 9 related

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