Malicious Interactive Reverse Shell on Linux (via process_creation)

PremiumReviewedSigma · High · v1
Product
linux
Category
process_creation
Author
HuntRule
Published
2026-05-01
Updated
2026-08-28

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 Linux command lines that establish an interactive reverse shell, including bash redirection to /dev/tcp, netcat with command execution, or a named-pipe backpipe. Reverse shells are a common execution and command-and-control behavior across the Linux intrusions summarized in the Red Canary Threat Detection Report. Detecting these constructs surfaces hands-on-keyboard access to the host.

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Malicious Interactive Reverse Shell on Linux (via process_creation)
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.