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Netcat Network Activity
editNetcat Network Activity
editA netcat process is engaging in network activity on a Linux host. Netcat is often used as a persistence mechanism by exporting a reverse shell or by serving a shell on a listening port. Netcat is also sometimes used for data exfiltration.
Rule type: eql
Rule indices:
- auditbeat-*
- logs-endpoint.events.*
Severity: medium
Risk score: 47
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Host
- Linux
- Threat Detection
- Execution
Version: 9
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editsequence by process.entity_id [process where (process.name == "nc" or process.name == "ncat" or process.name == "netcat" or process.name == "netcat.openbsd" or process.name == "netcat.traditional") and event.type == "start"] [network where (process.name == "nc" or process.name == "ncat" or process.name == "netcat" or process.name == "netcat.openbsd" or process.name == "netcat.traditional")]
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Execution
- ID: TA0002
- Reference URL: https://attack.mitre.org/tactics/TA0002/
-
Technique:
- Name: Command and Scripting Interpreter
- ID: T1059
- Reference URL: https://attack.mitre.org/techniques/T1059/