Malicious Linux XorDDoS gcc.pid Device Marker File via file_event

PremiumReviewedSigma · High · v1
Product
linux
Category
file_event
Author
HuntRule
Published
2026-05-14
Updated
2026-08-28

ATT&CK techniques

Persistence → Priv Esc
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  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 creation of the /var/run/gcc.pid device-identifier file that the Linux XorDDoS trojan reads and writes to track infected hosts. This hardcoded artifact path is a distinctive marker of the XorDDoS campaign delivering DDoS malware, so its appearance indicates an active infection.

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