The SIEM app is now a part of the Elastic Security solution. Click here to view the current documentation.
IMPORTANT: No additional bug fixes or documentation updates will be released for this version.

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Interactive Terminal Spawned via Perl

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Interactive Terminal Spawned via Perl

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Identifies when a terminal (tty) is spawned via Perl. Attackers may upgrade a simple reverse shell to a fully interactive tty after obtaining initial access to a host.

Rule type: query

Rule indices:

auditbeat-*

Severity: high

Risk score: 73

Runs every: 5 minutes

Searches indices from: now-6m (Date Math format, see also Additional look-back time)

Maximum signals per execution: 100

Tags:

Elastic
Linux

Version: 1

Added (Elastic Stack release): 7.8.0

Rule query

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event.action:executed and process.name:perl and process.args:("exec
\"/bin/sh\";" or "exec \"/bin/dash\";" or "exec \"/bin/bash\";")

Threat mapping

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Framework: MITRE ATT&CK^TM

Tactic:
- Name: Execution
- ID: TA0002
- Reference URL: https://attack.mitre.org/tactics/TA0002/
Technique:
- Name: Command-Line Interface
- ID: T1059
- Reference URL: https://attack.mitre.org/techniques/T1059/

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