Suspicious Reverse Shell via Dev TCP or Netcat

ATT&CK techniques

Execution → C2

Recon
Resource Dev
Initial Access
Execution
- T1059.004Unix Shell
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1071.001Web Protocols
Exfiltration
Impact

What it detects

This rule detects Linux reverse-shell construction using bash /dev/tcp redirection or netcat with command execution, techniques used to obtain remote access after ActiveMQ CVE-2023-46604 exploitation. Attackers open these outbound shells to control the compromised broker interactively. These reverse-shell patterns are hallmark hands-on-keyboard command-and-control indicators.

Reporting behind it

Related detections9 linkedT1071.001 — drag to rearrange

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Possible PlugX and NPS Proxy Command and Control Domain Lookup

Possible Backdoor Mistic Command and Control Domain Lookup

Suspicious Weaver Ant In-Memory Web Shell Marker in Web Request (via webserver)

Malicious BlueNoroff C2 Communication via cur1-agent User-Agent (via proxy)

Suspicious Reverse Shell via Dev TCP or Netcat

Pivot detection · T1071.001 · 9 related

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

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