Malicious Reverse Shell via Netcat or Shell Redirection on Linux (via process_creation)

PremiumReviewedSigma · High · v1
Product
linux
Category
process_creation
Author
HuntRule
Published
2026-10-14
Updated
2026-10-14

ATT&CK techniques

Execution
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Persistence

  5. Priv Esc

  6. Defense Evasion

  7. Cred Access

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects Netcat invoked with a command execution flag or a bash dev tcp redirection used to establish an interactive reverse shell. Attackers exploiting OpenMetadata used these techniques for hands-on access to compromised Kubernetes workloads.

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Malicious Reverse Shell via Netcat or Shell Redirection on Linux (via process_creation)
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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.